Nestled in the rolling glacial hills of Elkhart Lake, Wisconsin, Road America provided a beautifully scenic yet brutal stage for the Motul SportsCar Endurance Grand Prix at Road America. This weekend, the iconic 4.048-mile, 14-turn circuit truly tested the limits of the Corvette Z06 GT3.R platform. Drivers fought through the high-speed commitment required at the Kink, the technical precision of the Carousel, and the sheer power needed to climb the massive front-stretch hill. Navigating a grueling six-hour endurance format—a first for IMSA at Road America—requires an intricate setup balancing maximum aerodynamic efficiency with structural durability to handle the track’s punishing curb strikes.
The weekend’s action only solidified the overwhelming global dominance shared across Chevrolet’s customer and factory-supported programs. On the global stage, the customer-led FIA WEC TF Sport team has put together a formidable season, locking down an impressive haul of three total podiums (including two P1 victories and a P2 finish), highlighted by Jonny Edgar leading the LMGT3 Drivers’ Championship. Meanwhile, the factory-supported Corvette Racing by Pratt Miller Motorsports outfit continues to assert its presence in IMSA. Coming out of Wisconsin, the No. 4 Corvette duo of Nicky Catsburg and Tommy Milner fought their way to a hard-earned 3rd-place finish, securing their third podium of the season and closing to within just 15 points of the lead in the GTD PRO Drivers’ Championship, while simultaneously expanding Chevrolet’s cushion at the top of the Manufacturers’ standings. Added to the single podium already claimed by the sister No. 3 Corvette on the streets of Detroit, the Z06 GT3.R platform has proven to be a championship-caliber weapon on both sides of the Atlantic.
CorvSport’s Dominance Tracker: The Z06 GT3.R’s Podiums
♦ IMSA 2026:
- Mobil 1 Twelve Hours of Sebring | 3rd Place (P3) | No. 4 Corvette Racing by Pratt Miller Motorsports
- Monterey SportsCar Championship at WeatherTech Raceway Laguna Seca | 2nd Place (P2) | No. 4 Corvette Racing by Pratt Miller Motorsports
- Chevrolet Detroit SportsCar Classic | 1st Place (P1) | No. 3 Corvette Racing by Pratt Miller Motorsports
- Motul SportsCar Endurance Grand Prix at Road America | 3rd Place (P3) | No. 4 Corvette Racing by Pratt Miller Motorsports
♦ FIA WEC 2026:
- 6 Hours of Imola | 2nd Place (P2) | No. 33 TF Sport
- 24 Hours of Le Mans | 1st Place (P1) | No. 33 TF Sport
- Rolex 6 Hours of São Paulo | 1st Place (P1) | No. 34 Racing Team Turkey by TF Corvette
♦ What’s Inside CorvSport’s Corvette Racing Coverage:
- The Official Motul SportsCar Endurance Grand Prix at Road America Press Release From Corvette Racing: Authored by Ryan Smith
- The Post-Race CORVETTE Z06 GT3.R DRIVER QUOTES From Corvette Racing
- Engage With Pratt Miller & Tell Them Congrats!
1 — The Official Motul SportsCar Endurance Grand Prix at Road America Press Release From Corvette Racing: Authored by Ryan Smith
CORVETTE RACING AT ROAD AMERICA: P3 for No. 4 Corvette
Milner, Catsburg edge closer to points lead; DragonSpeed just misses GTD podium
ELKHART LAKE, Wisc. (August 2, 2026) – Corvette Racing by Pratt Miller Motorsports’ Tommy Milner and Nicky Catsburg returned to the GTD PRO podium in the IMSA WeatherTech SportsCar Championship with a third-place finish at the end of a chaotic six-hour Motul Endurance SportsCar Grand Prix at Road America on Sunday.
It was the third podium finish of the season for the duo in the No. 4 Chevrolet Corvette Z06 GT3.R and first since the third race of the year. Milner drove the opening and closing stages with Catsburg driving the middle portion in a clean run by the No. 4 team.
The race and results had significant championship implications. Chevrolet’s lead in the class Manufacturers Championship grew to 105 points with three races and 1,155 points remaining. Milner and Catsburg remained second in the Drivers Championship but moved to within 15 points of first in the standings; the gap is the same in Teams points with the top-four within 99 points after Sunday.
Contact following a restart ruined the day for Antonio Garcia and Alexander Sims in the No. 3 Corvette. After Sims and Garcia split driving for the first four hours, Sims suffered contact with just under two hours left that left the No. 3 in the Turn Three gravel trap and with right-rear damage. The Corvette returned to the race after losing six laps, and the duo finished 10th in class.
In GTD, DragonSpeed recorded its best result of the season – a fourth-place finish for the No. 81 Corvette of Giacomo Altoé, Casper Stevenson and Alec Udell. Stevenson qualified near the front, and the DragonSpeed Corvette stayed toward the sharp end throughout. Udell led toward the end of his stint, and Altoé challenged for a podium position late. He made what appeared to be a podium-clinching pass just before the race’s final full-course yellow flew with 10 minutes to go, but IMSA officials ruled that the pass took place after the yellow came out.
The No. 13 Autosport Corvette of Matt Bell, Lars Kern and Orey Fidani placed seventh in GTD – their best finish since the Sebring 12 Hours – as Fidani regained the lead in the Bob Akin championship standings with the result. Fidani and Kern raced the No. 13 into the top-five inside the final two hours with Bell third before contact on a restart sent him off-track and down the order. Bell drove a strong double-stint to the end and made up 11 spots, and the late-race yellow prevented from moving further up.
DXDT Racing’s No. 36 Corvette also got the worst of late contact that ruined a potential podium run. After double-stints by Mason Filippi and Robert Wickens, Charlie Eastwood was hit and spun from seventh place. He was able to get the Corvette going again but fell to 14th at the end.
The next race for the five Corvette Z06 GT3.R teams in IMSA is the Michelin GT Challenge at Virginia International Raceway on Sunday, August 23.
2 — The Post-Race CORVETTE Z06 GT3.R DRIVER QUOTES From Corvette Racing
TOMMY MILNER, NO. 4 CHEVROLET CORVETTE Z06 GT3.R:
“A great points today for us. The 77 in front of us was already close to us and is even closer to us now. But we did make some headway on the BMW. That’s racing. Some years nothing goes your way, some years everything goes your way and sometimes it’s up and down. It seems like it’s that way for a lot of cars this year… some ups and downs. You have to make the most of these weekends that are in your favor and take the points when you can get them. I’m a bit disappointed in the general driving standards across the board. The fans deserve a little bit more than that after last year and now in a six-hour race. But I was very happy with our Corvette today. We did everything right with good strategy and good pit stops. No issues today at all, so I’m very proud of the team for that.”
(On the race length) “It’s so cool to do six hours here. It’s the right track for a longer endurance race like this one. The fans here are amazing. I think the number is like 31 percent more fans this year than last year. It is, in my opinion, the best IMSA racing track we go to all year long. Some events may be a little better and some tracks are more exciting in some ways. But when you think about multi-class racing, Road America is the best. You’ve got big, long brake zones, nice high-speed sections. This is a staple of sports car racing and should be for a long time.”
NICKY CATSBURG, NO. 4 CHEVROLET CORVETTE Z06 GT3.R:
“I think we got unlucky with one of the yellows late because otherwise I think we would have finished P2 or in the fight for P1. But that’s just the way IMSA is sometimes. It can be a little bit of a lottery. But the main thing is that our pitlane work was amazing. The guys did great today. The car is like new! Tommy didn’t touch anyone! It’s a very good day for us and a good points haul. This is exactly how we planned to do it. We didn’t want to take big risks. It’s a bit of an eye-opener today, the way you can get results in IMSA, as well. I’m really happy and pleased with the crew work. All our stops were on it. We do need to look at some stuff to improve. It seems some of the others are able to save a lot of fuel and beat us in the pitlane. We’ll figure that out, and it’s been a great day today.”
ALEXANDER SIMS, NO. 3 CHEVROLET CORVETTE Z06 GT3.R:
“There were a lot of cars and not a lot of space. All through Turn One, it was very congested and we got through there OK. It felt even more congested going into Three. I knew I had a Porsche on the inside of me, and then I was right behind the 65. He was holding mid-track and so I braked to the outside and in hindsight that was the wrong thing to do. It was a bit messy. I also don’t sit here and think I wasn’t smart for doing it. I took a risk and it didn’t pay off this time. But I’m very pleased for the 4 car guys. They closed up so much in the points with the BMW’s troubles. It seems like we had a long list of issues in this race with refueling, with radio and whether or not we could have made it into the pitlane with Antonio on a late call. Unfortunately Road America is still a place where I haven’t had a good result. I love it but I need to get a good result here next year.”
CASPER STEVENSON, NO. 81 CHEVROLET CORVETTE Z06 GT3.R:
“I’m happy with the result even though we were close to the podium. We were in the mix all day, which was a great feeling. I feel we got a bit unlucky with so many people taking gambles that weren’t in the fight and then with all the yellows they were in the fight. We managed to still overcome that.”
ALEC UDELL, NO. 81 CHEVROLET CORVETTE Z06 GT3.R:
“The key in IMSA is always track position. Casper did a great job in qualifying to put the car toward the front. Being there and being able to fight there, you can control the race a lot better. There was some pit stop strategy there at the end, but the team called a great race and we were on the right strategy all the way through. We had great stops each time and a really good car. Giacomo had a couple of really awesome restarts to put us back in the fight with a couple of cars that took a gamble on strategy. That’s how it is. Sometimes you get lucky. We played a very clean-cut race and I’m really happy for the performance of the DragonSpeed guys. I know they’ve been pushing hard for this kind of result all year.”
MATT BELL, NO. 13 CHEVROLET CORVETTE Z06 GT3.R:
“There were some positives to take away from today. We won the Akin award and retook the lead in the championship, which is our primary objective to get back to Le Mans. But there was a much better result on the table for us today. The crew did an amazing job. Lars had a fantastic stint and Orey did a great job to get us to third with two hours. Then there was IMSA carnage again on a restart. I got contact from the rear that put me into someone on the front which dropped me from third to last. I think we had the win in the cards today. 13 Autosport gave me the best GTD car today. The Corvette was on fire all weekend. It’s a result that’s gotten away. That’s bittersweet but happy to walk away with the Akin lead.”
ROBERT WICKENS, NO. 36 CHEVROLET CORVETTE Z06 GT3.R:
“The team has done an amazing job. Just to get the hand controls into the car for this weekend was a huge undertaking. My first stint was not my best product, per se. But in the second stint I was much happier with the car. The team made a setup change on the pitstop, which was amazing they could do that in the race. It really transformed the car for my second stint and I made up four or five spots so that was fun going door-to-door and racing hard out there. We were struggling a lot for rear grip, kind of entry to middle and exit of the corner. We made a change to the front end of the car and that helped a lot.”
3 — Engage With Pratt Miller & Tell Them Congrats!
The checkered flag may have fallen, but the conversation is just getting started. Connect with the winning team and racing fans who live and breathe Corvette competition by clicking anywhere on Pratt Miller’s post and joining the discussion.
♦ From Pratt Miller Motorsports:
“The No. 4 is heading home with another podium finish!
While the No. 4 stood on the podium, the No. 3 also kept up their determination bringing home a P10. Now our focus shifts forward.
We’re ready to reset and head to VIR, where the GT cars take center stage for a weekend!”
Corvette Racing fans, the team at CorvSport truly appreciates having you as a reader. Make 2026 our best year yet and join the CorvSport movement!
- Engage with CorvSport’s 164,000 Facebook followers and be the first to see our daily content.
- Experience how obsessed we are and view our whole arsenal of Corvette content at CorvSport.com!
- Never miss a beat on the community pulse! Sign up for our weekly newsletter here.
- Enjoy an ad-free experience, get exclusive content, and support CorvSport for only $2.92/month!
