AJ Muss is a racing driver from Brazil who competes in GT World Challenge Europe for Comtoyou Racing. Muss is a one-time champion (2024), with 2 wins and 20 podiums from 61 starts.[1]
A Racer Rating of 4,183 ranks Muss 2795th of 38,983 indexed drivers, on an Elo scale where the strongest reach the high 8,000s. It is built from every indexed race in the driver's file.
| 2026-04-11 | 6 Hours of Paul Ricard | P44 | โ63 |
| Rating won | Race | Series | Finish |
|---|---|---|---|
| +172 | Watkins Glen International 2024 | Lamborghini Super Trofeo NA | P1 |
| +165 | Weathertech Raceway Laguna Seca 2024 | Lamborghini Super Trofeo NA | P2 |
| +151 | Watkins Glen International 2024 | Lamborghini Super Trofeo NA | P2 |
| +142 | Watkins Glen International 2022 | IMSA Pilot Challenge | P3 |
| +138 | Indianapolis Motor Speedway RC 2023 | Lamborghini Super Trofeo NA | P2 |
| Season | Series | Team | Races | Wins | Podiums | DNFs | Poles | Points | Pos | Gain/Loss | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | โธGT World Challenge Europe | Comtoyou Racing | 1 | 0 | 0 | 0 | 0 | 0 | โ | โ63 | 4,183 |
| 2025 | โธIMSA VP Racing SportsCar Challenge | Af Corse | 7 | 0 | 7 | 0 | 0 | 0 | P4 | +438 | 4,246 |
| โธIMSA WeatherTech | Triarsi Competizione | 3 | 0 | 0 | 0 | 0 | 0 | P33 | โ51โ12 | ||
| โธLamborghini Super Trofeo NA | Forty7 Motorsports | 2 | 0 | 1 | 0 | 0 | 0 | P15 | โ67 | ||
| 2024 | โธLamborghini Super Trofeo NA | Forty7 Motorsports | 10 | 1 | 6 | 0 | 0 | 0 | P1 | +941 | 3,836 |
| โธInternational GT | 1 | 0 | 1 | 0 | 0 | 0 | โ | โ16 | |||
| 2023 | โธLamborghini Super Trofeo NA | Forty7 Motorsports | 10 | 0 | 3 | 0 | 0 | 0 | P5 | +82 | 2,911 |
| 2022 | โธIMSA Pilot Challenge | Bryan Herta Autosport w/ Curb Agajanian | 10 | 0 | 1 | 0 | 0 | 0 | P11 | +9 | 2,830 |
| โธLamborghini Super Trofeo NA | Forty7 Motorsports | 6 | 1 | 1 | 0 | 0 | 0 | P8 | โ349 | ||
| 2021 | โธIMSA Pilot Challenge | Copeland Motorsports | 10 | 0 | 0 | 0 | 0 | 0 | P14 | โ147 | 3,169 |
| 2020 | โธIMSA Pilot Challenge | Forty7 Motorsports | 1 | 0 | 0 | 0 | 0 | 0 | P22 | +1,868 | 3,218 |
| Rival | Rating | Raced | Ahead | Behind | Record |
|---|---|---|---|---|---|
| ๐บ๐ธ Tyler HoffmanFIA Bronze | 2,457 | 27 | 18 | 9 | 67% |
| ๐บ๐ธ Wesley SlimpFIA Silver | 3,133 | 26 | 16 | 10 | 62% |
| ๐จ๐ฆ Stephen SimpsonFIA Silver | 4,148 | 21 | 5 | 16 | 24% |
| ๐บ๐ธ Rory van der SteurFIA Silver | 4,026 | 21 | 8 | 13 | 38% |
| ๐บ๐ธ Michael LewisFIA Gold | 4,020 | 21 | 1 | 20 | 5% |
| ๐บ๐ธ Harry GottsackerFIA Silver | 3,816 | 21 | 6 | 15 | 29% |
| ๐บ๐ธ Tim LewisFIA Bronze | 3,703 | 21 | 7 | 14 | 33% |
| ๐บ๐ธ Taylor HaglerFIA Bronze | 3,636 | 21 | 2 | 19 | 10% |
| ๐ฆ๐ท Roy Block | 3,564 | 21 | 7 | 14 | 33% |
| ๐บ๐ธ Michael JohnsonFIA Silver | 2,510 | 21 | 5 | 16 | 24% |
| ๐จ๐ฆ Lance StrollFIA Platinum, 1ร champion | 5,992 | 1 | 1 | 0 | 100% |
| ๐ฎ๐น Antonio FuocoFIA Platinum | 5,764 | 2 | 1 | 1 | 50% |
| ๐ฆ๐น Thomas PreiningFIA Platinum, 1ร champion | 5,629 | 1 | 1 | 0 | 100% |
| # | Driver | Series | Rating |
|---|---|---|---|
| 2,785 | ๐ฏ๐ต Tim Bergmeister | Super GT | 4,189 |
| 2,786 | ๐ณ๏ธ Xandynho Negrรฃo | Stock Car Pro Series | 4,189 |
| 2,787 | ๐ณ๐ฑ David Hart | FIA GT Championship | 4,188 |
| 2,788 | ๐ฏ๐ต Syuuji Hyoudou | Formula 3 Macau | 4,188 |
| 2,789 | ๐บ๐ธ Doug Heveron | NASCAR Xfinity | 4,187 |
| 2,790 | ๐ณ๐ฟ Jamie Derbyshire | FIA GT Championship | 4,185 |
| 2,791 | ๐ฌ๐ง Jรผrgen von Gartzen | Nรผrburgring Langstrecken-Serie | 4,185 |
| 2,792 | ๐บ๐ธ Mike Dillon | NASCAR Xfinity | 4,185 |
| 2,793 | ๐บ๐ธ Bryson Morris | IMSA Pilot Challenge | 4,184 |
| 2,794 | ๐ฉ๐ช Nick Wรผstenhagen | Nรผrburgring Langstrecken-Serie | 4,184 |
| 2,795 | ๐ง๐ท AJ Muss | GT World Challenge Europe | 4,183 |
| 2,796 | ๐ฎ๐น Emanuele Busnelli | Le Mans Cup | 4,183 |
| 2,797 | ๐ฌ๐ง Leo Machitski | British GT Championship | 4,183 |
| 2,798 | ๐ป๐ช Rodolfo Gonzalez | IndyCar | 4,183 |
| 2,799 | ๐ฉ๐ช Alberto Di Folco | GT World Challenge Europe | 4,182 |
| 2,800 | ๐บ๐ธ Bobby Dotter | NASCAR Xfinity | 4,182 |
| 2,801 | ๐ฌ๐ง Tom Papadopoulos | IMSA WeatherTech | 4,182 |
| 2,802 | ๐ฉ๐ช Felipe Laser | Le Mans Cup | 4,181 |
| 2,803 | ๐ช๐ธ Jordi Genรฉ | FIA World Touring Car Cup | 4,181 |
| 2,804 | ๐ฌ๐ง Matthew Graham | British GT Championship | 4,181 |
| 2,805 | ๐ฆ๐ท Nicolรกs Dapero | Indy NXT | 4,181 |
AJ Muss is a professional-level sportscar driver rated 4,258, placing him among competitive professionals in endurance and GT racing. His FIA Silver grading denotes a driver of professional standard, typically early in career development within the sportscar ranks. Muss has contested seven seasons of racing from 2020 to 2026, accumulating 61 starts across five series. His primary platform has been Lamborghini Super Trofeo North America, where he has competed from 2022 onwards for Forty7 Motorsports, recording two wins and eleven podiums from twenty-eight starts. The 2024 season yielded his sole championship to date, the Lamborghini Super Trofeo NA ProAm title. Away from Super Trofeo, his record across the IMSA platform has been one podium finish in the Pilot Challenge series and seven consecutive podiums in the VP Racing SportsCar Challenge in 2025, though neither venture has produced race wins. His average finishing position across all starts stands at P7.1.[1]
Muss has maintained a strong competitive record against peers in the semiproessional field. Against drivers rated similarly or slightly below, his head-to-head records show consistent advantage; he finished ahead of Taylor Hagler, a two-time IMSA Pilot Challenge TCR champion, in nineteen of twenty-one shared races, and ahead of Harry Gottsacker, the 2023 IMSA Pilot Challenge TCR champion, in fifteen of twenty-one. His pattern against established professionals proves less consistent, with Stephen Simpson and Rory van der Steur, both Silver-graded drivers near his own level, holding records of sixteen and thirteen wins respectively in shared outings. Notably, Muss has achieved isolated results against significantly stronger drivers; he finished ahead of the Platinum-graded Antonio Fuoco and Alessandro Pier Guidi, the four-time WEC LMGTE Pro champion, on single occasions.[2]
Currently active in 2025, Muss continues in Lamborghini Super Trofeo North America while making appearances in IMSA VP Racing and WeatherTech competition. His campaign shows the profile of a professional driver consolidating experience across multiple categories within the sportscar ecosystem, with recent entry into GT World Challenge Europe suggesting an expansion of ambition toward international competition.