Catsburg had started the sole Chevrolet Corvette C8.R from pole and maintained the lead at the start before making an early stop under the safety car.
But less than 90 minutes into the race, Catsburg was back in the pits with a front-right damper failure that took nearly 10 minutes to repair and dropped Catsburg, Nico Varrone and Ben Keating two laps behind the leaders.
