K1 Speed backs Zayne Burgess with multi-year partnership as young American talent pursues his...
K1 Speed backs Zayne Burgess with multi-year partnership as young American talent pursues his...

K1 Speed backs Zayne Burgess with...

K1 Speed backs Zayne Burgess with multi-year partnership as young American talent pursues his...

K1 Speed backs Zayne Burgess with multi-year partnership as young American talent pursues his...

K1 Speed, a global leader in indoor kart racing, has signed a multi-year sponsorship agreement with Zayne Burgess, an outstanding young American talent pursuing his dream of reaching Formula 1.
Major Championships Unite as Karting Champions League
Major Championships Unite as Karting Champions League

Major Championships Unite as Karting...

Major Championships Unite as Karting Champions League

Major Championships Unite as Karting Champions League

MP Group is proud to announce that BNL, Chrono & UKS, Golden Trophy, GK4 and the Karting Champions League Winter Series are joining forces and merging into a single organisation: Karting Champions...
ROK Cup Superfinal 2026 celebrates its Winners
ROK Cup Superfinal 2026 celebrates its Winners

ROK Cup Superfinal 2026 celebrates its...

ROK Cup Superfinal 2026 celebrates its Winners

ROK Cup Superfinal 2026 celebrates its Winners

The curtain falls on the 2026 ROK Cup Superfinal, which has delivered a week of thrilling battles and spectacular racing at the South Garda Karting circuit in Lonato del Garda (Italy). Over 300...
3MK Events unveils its 2027 calendar
3MK Events unveils its 2027 calendar

3MK Events unveils its 2027 calendar

3MK Events unveils its 2027 calendar

3MK Events unveils its 2027 calendar

3MK Events has announced the dates for its 2027 season. With iconic circuits and new additions to the schedule, the promoter is confident that the upcoming season will be a record-breaking one....
T4 Nations Cup moves to Lonato, Italy
T4 Nations Cup moves to Lonato, Italy

T4 Nations Cup moves to Lonato, Italy

T4 Nations Cup moves to Lonato, Italy

T4 Nations Cup moves to Lonato, Italy

The eighth annual T4 Nations Cup moves to one of karting’s most iconic circuits under a three-year agreement, following five record-setting years in Valencia, Spain
ROK Cup Superfinal 2026 - Qualifying Report
ROK Cup Superfinal 2026 - Qualifying Report

ROK Cup Superfinal 2026 - Qualifying...

ROK Cup Superfinal 2026 - Qualifying Report

ROK Cup Superfinal 2026 - Qualifying Report

The 2026 ROK Cup Superfinal officially gets underway at the South Garda Karting circuit in Lonato del Garda (Italy). The most anticipated event of the ROK Cup season brings together over 300 drivers...
2026 ProKart Challenge concludes at K1 Circuit
2026 ProKart Challenge concludes at K1 Circuit

2026 ProKart Challenge concludes at K1...

2026 ProKart Challenge concludes at K1 Circuit

2026 ProKart Challenge concludes at K1 Circuit

The 2026 ProKart Challenge championship hosted its sixth and final round of the season at the K1 Circuit over the October 3-4 weekend. It was the second visit to the Winchester, California facility of...
Sunday live stream: Tillotson T4 Nations Cup 2026 at the Lucas Guerrero International Kart track
Sunday live stream: Tillotson T4 Nations Cup 2026 at the Lucas Guerrero International Kart track

Sunday live stream: Tillotson T4 Nations...

Sunday live stream: Tillotson T4 Nations Cup 2026 at the Lucas Guerrero International Kart track

Sunday live stream: Tillotson T4 Nations Cup 2026 at the Lucas Guerrero International Kart track

The Tillotson T4 Nations Cup will take place at the Lucas Guerrero International Kart track in Spain. Tillotson T4 Nations Cup – the best 4-stroke pilots from all over the world will compete for...
Davide Forè secures the Italian KZ2 Master title
Davide Forè secures the Italian KZ2 Master title

Davide Forè secures the Italian KZ2...

Davide Forè secures the Italian KZ2 Master title

Davide Forè secures the Italian KZ2 Master title

Davide Forè secures the Italian KZ2 Master title and finishes inside the overall KZ2 top 5 in the standings after another strong weekend!
Saturday live stream: Tillotson T4 Nations Cup 2026 at the Lucas Guerrero International Kart track
Saturday live stream: Tillotson T4 Nations Cup 2026 at the Lucas Guerrero International Kart track

Saturday live stream: Tillotson T4...

Saturday live stream: Tillotson T4 Nations Cup 2026 at the Lucas Guerrero International Kart track

Saturday live stream: Tillotson T4 Nations Cup 2026 at the Lucas Guerrero International Kart track

The Tillotson T4 Nations Cup will take place at the Lucas Guerrero International Kart track in Spain. Tillotson T4 Nations Cup – the best 4-stroke pilots from all over the world will compete for...
Livetiming: Tillotson T4 Nations Cup 2026 at the Lucas Guerrero International Kart track
Livetiming: Tillotson T4 Nations Cup 2026 at the Lucas Guerrero International Kart track

Livetiming: Tillotson T4 Nations Cup...

Livetiming: Tillotson T4 Nations Cup 2026 at the Lucas Guerrero International Kart track

Livetiming: Tillotson T4 Nations Cup 2026 at the Lucas Guerrero International Kart track

The Tillotson T4 Nations Cup will take place at the Lucas Guerrero International Kart track in Spain. Tillotson T4 Nations Cup – the best 4-stroke pilots from all over the world will compete for...
Championships to be decided next weekend for ProKart Challenge
Championships to be decided next weekend for ProKart Challenge

Championships to be decided next weekend...

Championships to be decided next weekend for ProKart Challenge

Championships to be decided next weekend for ProKart Challenge

The 2026 season for the ProKart Challenge program is set to close out over the October 3-4 weekend, hosting the fifth and final event of the year. The sixth round of the Superkarts! USA regional...
Superkarts! USA regional championship hosted penultimate round at Spring Mountain Karting Complex
Superkarts! USA regional championship hosted penultimate round at Spring Mountain Karting Complex

Superkarts! USA regional championship...

Superkarts! USA regional championship hosted penultimate round at Spring Mountain Karting Complex

Superkarts! USA regional championship hosted penultimate round at Spring Mountain Karting Complex

The 2026 ProKart Challenge championship took another step toward crowning this year’s title winners, hosting Round Five of the program at the Spring Mountain Karting Complex. The Superkarts! USA...
Max vs 100: 100 drivers prepare to face Max Verstappen in go-kart race
Max vs 100: 100 drivers prepare to face Max Verstappen in go-kart race

Max vs 100: 100 drivers prepare to face...

Max vs 100: 100 drivers prepare to face Max Verstappen in go-kart race

Max vs 100: 100 drivers prepare to face Max Verstappen in go-kart race

Max Verstappen’s 100 challengers in Red Bull’s ‘Max vs 100’ got to grips with the track, karts and race rules today, ahead of qualifying tomorrow and the livestream from 17:00...
ProKart challenge set for return to Spring Mountain Karting Complex
ProKart challenge set for return to Spring Mountain Karting Complex

ProKart challenge set for return to...

ProKart challenge set for return to Spring Mountain Karting Complex

ProKart challenge set for return to Spring Mountain Karting Complex

The ProKart Challenge will make its second ever visit to the Spring Mountain Karting Complex. The program travels to the Pahrump, Nevada course over the September 12-13 weekend for Round Five of the...
Max vs 100: Verstappen to Take on One Hundred Drivers in World's Biggest Go-Kart Race
Max vs 100: Verstappen to Take on One Hundred Drivers in World's Biggest Go-Kart Race

Max vs 100: Verstappen to Take on One...

Max vs 100: Verstappen to Take on One Hundred Drivers in World's Biggest Go-Kart Race

Max vs 100: Verstappen to Take on One Hundred Drivers in World's Biggest Go-Kart Race

Four-time Formula One World Champion Max Verstappen, who recently extended his contract with Oracle Red Bull Racing until the end of 2030, will return to his racing roots on September 16. At the...
Second half of 2026 ProKart Challenge begins in Sonoma
Second half of 2026 ProKart Challenge begins in Sonoma

Second half of 2026 ProKart Challenge...

Second half of 2026 ProKart Challenge begins in Sonoma

Second half of 2026 ProKart Challenge begins in Sonoma

The second half of the 2026 ProKart Challenge began over the August 15-16 weekend at Sonoma Raceway. The Sonoma, California circuit welcomed the series for the second of back-to-back trips, hosting...
RGMMC Mourns the Passing of Co-Founder Lynn Geidel
RGMMC Mourns the Passing of Co-Founder Lynn Geidel

RGMMC Mourns the Passing of Co-Founder...

RGMMC Mourns the Passing of Co-Founder Lynn Geidel

RGMMC Mourns the Passing of Co-Founder Lynn Geidel

It is with profound sadness that RGMMC shares the news of the passing of its co-founder, Lynn Geidel.
SuperNationals 2026: Senior MAX and Mini MAX engines from every country are welcome
SuperNationals 2026: Senior MAX and Mini MAX engines from every country are welcome

SuperNationals 2026: Senior MAX and Mini...

SuperNationals 2026: Senior MAX and Mini MAX engines from every country are welcome

SuperNationals 2026: Senior MAX and Mini MAX engines from every country are welcome

Karting Solutions Group, the US distributor for BRP-Rotax karting products and home of the Race Rotax brand, is confirming a key detail for racers ahead of the 2026 SKUSA SuperNationals: Rotax engines...
Tony Kart: “double weekend” with victory and podium
Tony Kart: “double weekend” with victory and podium

Tony Kart: “double weekend” with victory...

Tony Kart: “double weekend” with victory and podium

Tony Kart: “double weekend” with victory and podium

The Tony Kart Racer 401 T won the OK-N final and took third place in the MINI Gr.3 class at the fourth round of the ACI Italian Karting Championship. The Tony Kart Racing Team also took to the track...

Happy New Year! The crew of KartXpress.com wishes you a healthy and successful 2023!

Happy New Year! The crew of KartXpress.com wishes you a healthy and successful 2023! Read more

Happy New Year! The crew of KartXpress.com wishes you a healthy and successful 2023!

Superkarts! USA confirms 2023 Winter Series and Pro Tour Class structure

Superkarts! USA confirms 2023 Winter Series and Pro Tour Class structure Read more

Two months after a successful 25th running of their SuperNationals in Las Vegas, Superkarts! USA is set to begin its 2023 racing season in mid-January at the AMR Homestead-Miami Motorplex presented by MG Tires in south Florida. The sixth edition of the SKUSA Winter Series will once again be based out of the Homestead facility with two doubleheader weekends in January and February.

Vortex introduces the new homologated engines

Vortex introduces the new homologated engines Read more

The Engine Division of the OTK Kart Group unveils the engines that will be protagonists on the track from 2023: VTZ (KZ/KZ2), VTS (OK), VTS-N (OK-N), VTJ (OKJ) and VTM (MINI).

KartXpress.com wishes al kartracers, kartingteams and kartfans all over the World a Merry Christmas

KartXpress.com wishes al kartracers, kartingteams and kartfans all over the World a Merry Christmas Read more

KartXpress.com wishes al kartracers, kartingteams and kartfans all over the World a Merry Christmas

ROK Cup Winter Trophy 2023

ROK Cup Winter Trophy 2023 Read more

After the great success in 2022, the opening race of the 2023 Rok season is back: the ROK Cup Winter Trophy will be held on 25th and 26th of February at the South Garda karting in Lonato. Two days dedicated to the six Rok categories exclusively: Mini Rok, Junior Rok, Senior Rok, Expert Rok, Super Rok and Shifter Rok, with a timetable rich in rounds and heats.

CRG “the interview”: Giancarlo Tinini

CRG “the interview”: Giancarlo Tinini Read more

At the end of the season that has just ended, as per tradition, Giancarlo Tinini draws up a sporting balance for the CRG brand, also facing the main technical and commercial issues affecting the karting world on a larger scale. From a sporting point of view, 2022 has seen the CRG colors conquering a new World title with Viktor Gustafsson in the KZ category, as well as obtaining success in the KZ2 World Cup with Arthur Carbonnel, successes that confirm an unparalleled winning tradition in the international arena.

The ROK Cup Euro Trophy in Wackersdorf in 2023

The ROK Cup Euro Trophy in Wackersdorf in 2023 Read more

The ROK Cup Euro Trophy is back in 2023 with a new location: the famous track in Wackersdorf, appreciated and well-known all over the world, will be the arena of the Rok event dedicated to all European Rokkers and beyond, on June 30th and July 1st and 2nd.

Motorsport UK Wera Tools British Kart Championships 2023 KZ2 Calendar is revealed

Motorsport UK Wera Tools British Kart Championships 2023 KZ2 Calendar is revealed Read more

The Motorsport UK Wera Tools British Kart Championships are excited to announce the KZ2 calendar for the season ahead, as the series reveals a new-look roster for 2023.

Karting Australia Board further strengthened for 2023

Karting Australia Board further strengthened for 2023 Read more

The Karting Australia Board has confirmed the appointment of two well-credentialed new Directors to join the Board. Highly respected motorsport administrator Michael Masi and commercial lawyer Melissa Holzberger have accepted appointments to join the Board effective January 1, 2023.

Motorsport UK Wera Tools British Kart Championships announce 2023 IAME calendar

Motorsport UK Wera Tools British Kart Championships announce 2023 IAME calendar Read more

The Motorsport UK Wera Tools British Kart Championships are pleased to announce the 2023 calendar for the IAME categories with a new look to the racing roster for each of the hotly-contested classes.

Rok Cup Festival – Race Reports

Rok Cup Festival – Race Reports Read more

The ROK Cup Festival closes the 2022 single-brand season by Vortex with a more than positive drivers’ response: a total of 137 at the Franciacorta Karting Track in Castrezzato (Italy), in a two-day competition, featured by the rainy weather, which further raised the bar of the challenge. The finals crowned: Pietro Bagutti (Mini ROK), Tiziano Kuzhnini (Junior ROK), Riccardo Cirelli (Senior ROK), Davide Gherardi (Expert ROK), Sergio Koch (Super ROK) and Marco Vannini (Shifter ROK).

2023 Wera Tools British Kart Championships Rotax Calendar is revealed

2023 Wera Tools British Kart Championships Rotax Calendar is revealed Read more

The Motorsport UK Wera Tools British Kart Championships are thrilled to announce the first category dates of the season ahead as the series reveals the 2023 calendar for the Rotax classes.

WKA Announces 2023 Vega Tires National Road Race Series Schedule

WKA Announces 2023 Vega Tires National Road Race Series Schedule Read more

The much-anticipated World Karting Association (WKA) Vega Tires National Road Race Series schedule is here. After weeks of waiting, series officials are pleased to confirm a solid six-weekend race schedule that will kick off next month at the famed Daytona International Speedway during WKA KartWeek.

Energy hits the jackpot in Las Vegas

Energy hits the jackpot in Las Vegas Read more

Very well established thanks to the efforts of importer Nash Motorsportz, Energy Corse enjoys an excellent reputation on the American continent. Success is never far away for the Italian brand, which has just achieved magnificent performances at the famous Supernationals in Las Vegas, including a victory in the KA100 Senior and a 2nd place in X30 Senior.

WKA Gold Cup Series visited Jacksonville

WKA Gold Cup Series visited Jacksonville Read more

Three drivers left Jacksonville with three pieces of P1 hardware at this past weekend’s WKA Vega Tire Gold Cup Series presented by Summit Racing Equipment Grand Nationals at 103rd Street Sports Complex’s clockwise course with the chicane. 

Karting Australia - Ultimate Club Racers crowned in Murray Bridge

Karting Australia - Ultimate Club Racers crowned in Murray Bridge Read more

Karting Australia’s Ultimate Club Racer II has been completed in perfect weather conditions at Murray Bridge’s Monarto Karting complex in South Australia. Plenty of high drama surrounded the final day of competition as the Ultimate Club Racers were crowned. South Australian local, Leigh Harrison was the taste of the town, becoming the Ultimate Club Racer Champion in two categories.

All the winners of the ROK Cup Superfinal

All the winners of the ROK Cup Superfinal Read more

An incredible 2022 ROK Cup Superfinal: 373 drivers (representing 49 different countries) in 7 categories here in South Garda Karting in Lonato (Italy).

Saturday live stream: Rok Cup Superfinal 2022 at South Garda Karting - Lonato

Saturday live stream: Rok Cup Superfinal 2022 at South Garda Karting - Lonato Read more

This weekend the 20th edition of Rok Cup Superfinal taking place in Lonato. The race will start Thursday with the qualifying practices and the heats. The drivers will challenge each other heat after heat until Saturday morning, climax of the race, when the event will culminate with the Finals and Trophies in the afternoon.

Results: Rok Cup Superfinal 2022 at South Garda Karting - Lonato

Results: Rok Cup Superfinal 2022 at South Garda Karting - Lonato Read more

This weekend the 20th edition of Rok Cup Superfinal taking place in Lonato. The race will start Thursday with the qualifying practices and the heats. The drivers will challenge each other heat after heat until Saturday morning, climax of the race, when the event will culminate with the Finals and Trophies in the afternoon.

Live timing: Rok Cup Superfinal 2022 at South Garda Karting - Lonato

Live timing: Rok Cup Superfinal 2022 at South Garda Karting - Lonato Read more

This weekend the 20th edition of Rok Cup Superfinal taking place in Lonato. The race will start Thursday with the qualifying practices and the heats. The drivers will challenge each other heat after heat until Saturday morning, climax of the race, when the event will culminate with the Finals and Trophies in the afternoon.

First1112131416181920Last
Win streaks continue in Santa Maria for California ProKart Challenge
Bas Kaligis
/ Categories: International

Win streaks continue in Santa Maria for California ProKart Challenge

TEMECULA, CA – The fifth round of the California ProKart Challenge was contested on September 7-8 at the home of the Santa Maria Karting Association. The two-day event for the Superkarts! USA regional program took to the 7/10-mile ‘Nationals’ configuration. Despite some dust storms throughout the weekend, the weather was dry and sunny, allowing the 15 categories to continue their championship chases.

The most notable win streak going into the weekend was that of Billy Musgrave in the Croc Promotion USA/Mad Old Nut Pro Shifter category. Musgrave hit the double digits with victory at Round Four, and it seemed as if the streak would come to an end as the action played out in Santa Maria. The five-time series champion was unable to complete a lap in qualifying and came from the back of field in the Prefinal into second by lap five before retiring. Top qualifier Cody Hodgson led until Jake French took over for the win. Musgrave started ninth in the race group and worked his way up to second and past Hodgson until the two made contact. Musgrave was able to continue on, falling back to seventh and trailing French by more than six seconds. With fast laps of the race, Musgrave cut into French’s advantage and took over the top spot prior to the white flag. Holding on up to the checkered flag, Musgrave secured his 11th straight victory. French settled for second, with Hodgson in third.

While not a streak, Ryan Norberg became the first two-time winner in Rolison Performance Group X30 Senior class. The four-time SKUSA Pro Tour champion swept the round to put himself back into the championship chase. Norberg edged out Jacob Gulick and point leader Billy Musgrave by 99 thousandths in qualifying before leading all 14 laps in the Prefinal. In the Final, Norberg went unchallenged to lead all 25 laps for the victory ahead of Musgrave and Gulick. Defending champion Joseph Daniele was fourth with Joey Brienza placing fifth.

All five of the remaining shifterkart divisions had win streaks continue. Emon Fazlollahi scored his second straight, third of the season in the Musgrave Racing Company Pro Shifter 2 division. It was a near sweep after securing fast time in qualifying. However, Connor Robles edged him out for the Prefinal win. Robles led the majority of the Final until Fazlollahi took control late in the race to claim the victory. Robles remained close, finishing second with Anthony Freese in third. John Crow won his fourth race of the season, third straight in Alpinestars G1 class. Crow swept the day over Carl Lewis.

The second shifterkart group was all sweeps. Vicente Salas extended his streak to four in the Honda Racing/HPD S3 Novice Stock Moto division. Salas dominated the day over Jacopo Pizzinato, with Luca Bortone finishing third. Jacob Yesnick also has four straight wins in the Evinco Tires S5 Junior Stock Moto category. The sweep puts Yesnick into the championship chase after missing the opening round, outrunning point leader Mathias Coito and Kailey Meris. Brett Harrelson went uncontested in the Bell Helmets S4 Super Master Stock Moto class for his fifth straight victory.

Josh Pierson was able to take over the championship lead in the Nash Motorsportz X30 Junior division with his third victory of the season. Pierson completed a sweep of Round Five, clearing the field by nearly two tenths in qualifying before fighting hard to win the Prefinal. He would be able to go on and lead all 25 laps of the Final, never putting a wheel wrong to earn his second straight victory. Jonathan Portz posted fast time in his runner-up performance, as Maximilian Opalski was able to edge out Brent Crews for the third spot. Blake Nash completed the top-five.

Pierson was going for his fourth straight in the Allen Berg Racing Schools KA100 Junior class, running into a very competitive field in Santa Maria. He was second in qualifying behind Jacob Yesnick, who picked up his best qualifying performance of the season. Pierson took over the point in the Prefinal and led until he retired with two laps remaining. Brent Crews assumed the lead and scored the win. Crews led the opening few laps of the Final until he retired on lap four. Logan Toke, making his second start of the season, became the leader until a charging Pierson reached the front. Pierson took over the lead on lap 12, leading the remainder of the race to cross the line as the provisional winner. Pierson, along with another driver, were penalized 10 seconds for cutting the track. The fight for second came down to the wire with contact involved coming to the checkered. Cole Schroeder was second on-track, penalized five seconds for avoidable contact. All of this put Toke on top of the podium with his first victory in the category. Ethan Lampe was classified second, with Stephen Eisert in third. Pierson and Caleb Shrader rounded out the top-five.

It was a third victory on the season for Oliver Calvo in the Doran Motorsports Group KA100 Senior division. Michael Michoff, making his first start of 2019, set the pace through qualifying and the Prefinal. Henry Falls-Hand jumped out to the lead at the start of the Final, leading the first seven laps until Calvo took over. From there, Calvo was able to lead the remainder of the race for the victory. Michoff slid up to second with fast laps of the race and put the pressure on Calvo late, coming up 19 thousandths short at the checkered flag. Aiden Kempf rounded out the podium, with Nick Persing fourth and Luis Perez in fifth.

The International Kart Federation-sponsored KA100 Master division welcomed its largest field of the season with nine drivers taking part. Two-time winner Mike Smith was the lone driver to dip below the 51-second mark in qualifying before Nick de Graaf, making his first start of the season, earning the win in the Prefinal. de Graaf went unchallenged in the Final for his first victory in the category, as Smith drove from the tail of the field to second after a DQ in qualifying. Ron Jenkins was third with Robert Perez and Josh Buttafoco completing the top-five.

The battle in the Empire Karts X30 Master class was one of attrition. Championship leader Brett Harrelson set the pace in qualifying, only to retire early in the Prefinal. That allowed former SuperNationals winner Billy Cleavelin to claim the top spot and win in the Prefinal. Cleavelin would lead the first 11 laps until he retired, handing the lead over to a returning Scott Falcone – former SKUSA Pro Tour champion. Round One winner Steve Martin would outlast Falcone in the remaining laps, earning his second victory on the season. Falcone was runner-up in his return, with Harrelson back up to third. Jon Persing earned his second straight in the AiM Sports X30 Super Master category. Bob Bigiogni grabbed his second straight fast time in qualifying before Persing won both the Prefinal and Final. Bigiogni was runner-up, with Jeff Rice in third.

Next to Musgrave, Jesus Vasquez Jr. has a five-race win streak in the Ace High Designs Mini Swift class. It was his fourth straight sweep of the year, leading all 34 laps on the day after securing fast time in qualifying and in the main event for a perfect score. Izaac Gutierrez drove to second, with Ryan Persing in third. It was the G3 and ‘GT’ show in the IAME USA West Micro Swift class. G3 Argyros set the fast time in qualifying before defending champion Graham Trammell won the Prefinal. Trammell led the majority of the main event with Alex Mercado in the mix. Argyros was able to work past both, going from third to first on the final circuit to record the victory, his first on the year. Trammell settled for second with Mercado in third.

The California ProKart Challenge will conclude the 2019 season in just two weeks as the series finale is set for September 28-29. The 11th edition for the Streets of Lancaster Grand Prix is hosting the sixth round of the California PKC championship series. The two-day street race is among the most popular events of the season, welcoming drivers from all over the country and featuring the headline categories racing under the lights Saturday evening in front of hundreds of spectators. For more information on anything related to Superkarts! USA, please visit the website – www.superkartsusa.com and be sure to follow the Superkarts! USA Facebook page, Twitter and Instagram accounts.
 

Previous Article LeCont tyres played their role in World Championship title for Lorenzo Travisanutto
Next Article 2020 National Karting calendar announced
Print
22743 Rate this article:
1.0
Please login or register to post comments.