Fourth place in the six-hour race was enough for Catsburg and team-mates Ben Keating and Nico Varrone to claim the final GTE Am title before the arrival of LMGT3 rules for 2023 will render its C8.R ineligible.
Back-to-back victories at Sebring and Portimao, followed up by a second place at Spa and a third win of the season in the double points Le Mans 24 Hours, had put Corvette in a commanding championship position heading to Italy.
