The 2023 Rotax MAX Challenge US Trophy Final has crowned the new champions for this season in some thrilling racing at New Castle Motorsports Park in Indiana. With drivers representing eight nations joining the competition in the five Rotax MAX categories on the program, the international clash produced exciting races in the Final showdown.

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.