The 2026 GT World Challenge (GTWC) America powered by AWS season reaches its conclusion at Indianapolis Motor Speedway, with the Pro and Pro-Am championships still undecided ahead of the DESDER Indianapolis 8 Hour.
Six three-hour rounds have brought the championship to its longest and highest-scoring event of the year, where the GTWC America field will join the Intercontinental GT Challenge grid for an international endurance contest. The margins remain particularly small after the penultimate round at Barber Motorsports Park, where AF Corse USA won overall and GMG Racing reclaimed the Pro-Am championship lead before the teams turned their attention to Indianapolis.
JMF Motorsports arrives with the Pro advantage through Michai Stephens and Mikael Grenier, but AF Corse USA’s Matias Perez Companc sits only nine points behind. Turner Motorsport’s Justin Rothberg and Robby Foley remain another point back, leaving the three principal contenders separated by only ten points before the finale.
JMF Motorsports carries nine-point Pro lead
Stephens and Grenier have led the Pro championship throughout the 2026 campaign and enter Indianapolis with 114 points aboard the No. 34 Mercedes-AMG GT3 EVO.
The pair opened the season with consecutive victories at Sonoma Raceway and Circuit of The Americas before a mechanical problem at Sebring ended their early run of podium finishes. Their consistency through the subsequent rounds allowed them to remain in control despite increasing pressure from AF Corse USA and Turner Motorsport.
Barber provided another important result for the Canadian team. Stephens and Grenier finished second overall and in Pro, with the podium extending JMF Motorsports’ championship advantage from four points entering the weekend to nine as the championship moved towards its final round.
The finale also gives Stephens and Grenier another opportunity after finishing runner-up in the championship one year earlier. However, the eight-hour format presents a substantially different challenge from the six regular three-hour contests, with a larger field and increased points allocation leaving little room for mistakes.
AF Corse USA closes in after strong second half
AF Corse USA has developed into JMF’s closest challenger during the second half of the season, with Perez Companc arriving at Indianapolis on 105 points.
The Argentine has taken three consecutive pole positions at Road Atlanta, Road America and Barber. AF Corse USA converted two of those into victories at Road Atlanta and Barber, while podium finishes at Sonoma and Sebring have helped Perez Companc remain within nine points of the championship lead.
The team’s Barber victory proved particularly valuable. Perez Companc and Frederik Schandorff returned the No. 12 Ferrari 296 GT3 EVO to the front during the three-hour race in Alabama, reducing the deficit despite Stephens and Grenier finishing directly behind them.
Schandorff sits on 95 points after missing Road America because of a scheduling conflict, meaning his individual total differs from Perez Companc’s. AF Corse USA nevertheless remains firmly involved in the Teams’ Championship on 105 points, only nine behind JMF.
Turner Motorsport remains firmly in contention
Turner Motorsport enters the finale only one point behind Perez Companc and ten behind Stephens and Grenier, keeping Rothberg and Foley firmly involved in the title fight.
The pairing stepped into Pro this season after winning consecutive Pro-Am championships and has quickly established itself among the outright contenders. Rothberg and Foley claimed their first Pro victory at Sebring before adding another at Road America, while their runner-up finish at Circuit of The Americas supplied another significant points haul.
Their 104 points place them third in the Drivers’ Championship. As the post-Barber championship standings show, only ten points cover the leading three Pro contenders as they prepare for the double-points finale.
Indianapolis therefore leaves all three leading teams with a realistic opportunity to determine the championship through their own final-round performance.
GMG Racing regains control of Pro-Am
The Pro-Am championship has changed hands repeatedly during the closing stages of the season, with GMG Racing’s Kyle Washington and Tom Sargent returning to the top at Barber.
Washington and Sargent led for much of the year after building their campaign around victories at Sonoma and Sebring, alongside another podium at Road Atlanta. Their advantage disappeared at Road America when an early retirement allowed Wright Motorsports’ Dave Musial Jr. and Ryan Yardley to move three points ahead.
GMG responded at Barber despite another difficult start. Washington lost a lap following contact and a spin, but strategy and Sargent’s recovery returned the No. 32 Porsche to third in Pro-Am and produced a significant championship swing.
Washington and Sargent now have 92 points, with the Barber result returning them to the top of the Pro-Am standings six points ahead of Wright before the decisive eight-hour contest.
Wright Motorsports remains six points behind
Musial Jr. and Yardley enter the final round on 86 points after briefly taking control of the Pro-Am championship following Road America.
The Wright Motorsports pairing has one victory this season, achieved at Circuit of The Americas, alongside podium finishes at Sonoma and Road America. Although Barber cost them the championship lead, the six-point deficit remains small compared with the increased points available at Indianapolis.
The finale therefore sets up another direct contest between two Porsche crews that have exchanged the championship advantage during the second half of the campaign. GMG arrives ahead, but Wright remains close enough for the order to change again during the longest race of the season.
Schreibman approaches Am title from commanding position
The Am championship presents a less compressed picture, with Jay Schreibman holding a substantial advantage for AF Corse USA.
Schreibman has accumulated 143 points through the opening six rounds, while teammate Oswaldo Negri sits second on 100 after missing Road Atlanta and Road America through injury. The remaining Am competitors have primarily contested partial programmes, leaving Schreibman with a 43-point cushion before the double-points finale.
Barber strengthened that position as Schreibman and Negri returned to victory. Their performance contributed to the championship picture after Round 6, which leaves Schreibman substantially further clear of his nearest challenger than the leaders in Pro or Pro-Am.
Indianapolis now provides the final step towards converting that advantage into the Am championship.
Manufacturers’ battle adds another element
The domestic Manufacturers’ Championship also remains part of the equation heading into Indianapolis.
Mercedes-AMG leads with 114 points following JMF’s consistent Pro campaign, while Ferrari climbed to second on 100 after AF Corse USA’s Barber victory. BMW M follows on 95, with Porsche close behind on 91.
Those manufacturers are also involved in the wider global competition. Mercedes-AMG maintained its advantage after Barber, giving the marque another championship target as its GTWC America representatives prepare for the Indianapolis finale.
The combined GTWC America and Intercontinental GT Challenge field consequently adds another layer to the weekend, with the domestic title contenders racing alongside entries pursuing separate international objectives.
Indianapolis offers final and biggest challenge
The DESDER Indianapolis 8 Hour differs substantially from every previous round of the GTWC America season. Instead of another three-hour contest, the domestic field will share Indianapolis Motor Speedway with Intercontinental GT Challenge competitors across eight hours of racing, increasing the importance of traffic management, reliability and strategy.
The finale also carries the largest points allocation of the season. That keeps the closely matched Pro and Pro-Am battles open despite JMF and GMG entering as their respective championship leaders.
For JMF, the task is to protect a nine-point advantage over AF Corse USA while Turner remains only ten points from the lead. GMG has similarly little breathing room with six points separating Washington and Sargent from Musial Jr. and Yardley, while Schreibman enters with a considerably larger Am cushion.
The standings after Barber have therefore set up a finale in which the principal championship battles remain unresolved, leaving eight hours at the Brickyard to determine the 2026 GTWC America champions.
