Winter Challenge 4H (+Biathlon) / R9

Round 9 of the Winter Challenge 2026-2027 rental karting endurance championship takes place on February 21 2027 at Ouest Karting in Aunay-les-Bois, Normandy, France, combining a sprint race with the third 4-hour Biathlon race. The sprint race has qualifying and three 10-minute sprints, and its results score points for each driver's team. In the 4-hour race, which follows 15 minutes of qualifying, the driver fires a paintball shot at every pit stop and each missed shot adds seconds to the team's time. Teams race with Sodi SR5 390cc karts, equalised weight 85kg and quick driver and kart changes, in Legend and Amateur classes.