Circuit of the Americas. 5.513 kilometres of purpose-built racetrack on the outskirts of Austin, Texas. 20 turns, 41 metres of elevation change, a 1.2-kilometre straight off Turn 1 that compresses the field before the braking zone. COTA was built for Formula 1 but it hosts some of the most competitive GT racing in North America. Round 3 of the Pirelli GT4 America season brought the Lone Star Enduro, a three-hour race that operates on different rules to a standard sprint weekend. Alongside it, GT America Powered by AWS ran Rounds 3 and 4, two 50-minute races on Saturday and Sunday. Colorado Motorsport entered both programmes. Two cars, two championships, one weekend.

Lone Star Enduro. Zach Lumsden and Kris Wilson shared the No. 413 BMW M4 GT4 EVO in the three-hour AM class battle. The team ran with patience through the opening hours, building position without risk. Wilson put the car at the front of the overall standings during the middle phase of the race. The final full-course caution fell with 31 minutes remaining. The team chose to stay on track rather than pit for fresh rubber. The calculation did not convert into a class win, but it earned P3 AM at the flag, behind the BimmerWorld BMW of James Clay and James Walker Jr. and the RAFA Toyota of Anthony Geraci and Rafael Martinez. Third place in a three-hour race. The car was fast enough to lead. The result reflects a team learning how to convert.

GT America Race 1. Craig Lumsden took the No. 610 BMW M4 GT4 EVO into a 50-minute sprint race and ran a measured, controlled race from start to flag. No incidents, no mistakes, no unnecessary risks. He crossed the line P2 in the GT4 class, behind Jozsef Petkes in the No. 83 RCX Motorsport Porsche 718 Cayman GT4 RS Clubsport. A solid points haul and a clean read of the circuit conditions heading into Race 2.

GT America Race 2. Lumsden brought the same approach to Sunday and delivered the same result. P2 GT4 class for the second time in 24 hours. Memo Gidley swept both overall GT America victories in the SKI Autosports Audi R8 LMS GT3, but Lumsden was the consistent reference of the GT4 order across the full weekend. Back-to-back second places, no drama, maximum class points taken on both occasions.

The Weekend in Numbers. Three starts. Three podiums. P3 AM in the Lone Star Enduro, P2 GT4 in GT America Race 1, P2 GT4 in Race 2. Two cars active across two championships at one of the most demanding venues on the SRO America calendar. The No. 413 ran a three-hour endurance format and stood on the podium. The No. 610 now holds consecutive GT4 class podiums in every race Craig Lumsden has started in 2026. COTA confirmed the direction.

COTA does not give up easy results. The circuit was built for Formula 1, it runs at international standards, and the competition inside GT4 America and GT America does not allow for anything less than a complete weekend. Three podiums from three starts is a statement. It takes precision, patience, and the confidence to execute under pressure when the gap is tight and the clock is running. Those are the same qualities BOMBERG builds into every timepiece. Colorado Motorsport carries that philosophy onto the circuit and brings it back verified. The team moves to Sebring next, where the concrete is older, the bumps are harder, and the championship stakes are higher.