The 2023 California ProKart Challenge came to a close on the September 22-24 weekend with the final two rounds contested at the Adams Motorsports Park in Riverside, CA. This was a revised series finale for the 19th championship season when Hurricane Hilary forced Round Five in August to be combined with Round Six. The new three-day weekend avoided weather issues, with perfect racing conditions for the drivers wrapping up the 2023 championship program.

The second event of the United States Pro Kart Series was held over the weekend (April 28-May 1) as OTK USA continued its success during the first half of the 2022 season. The Carolina Grand Prix was contested on the GoPro Motorplex in Mooresville, North Carolina with perfect racing weather greeting the over 300 entries in the seven categories offered. Of the 14 main events on the weekend, OTK drivers and teams grabbed nine victories with 25 standing on the podium steps in addition to 53 finishes inside the top-five.