Spencer Pumpelly is a racing driver from United States who competes in GT4 America for RS1. Pumpelly is a one-time champion (2016), with 17 wins and 42 podiums from 192 starts.[1]
A Racer Rating of 4,134 ranks Pumpelly 3040th of 40,349 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.
| 2026-10-03 | Road Atlanta GTD | P5 | +117 |
| 2026-09-26 | Barber Motorsports Park Silver | P7 | β189 |
| 2026-09-25 | Barber Motorsports Park Silver | P5 | β104 |
| 2026-08-29 | Road America Silver | P1 | +86 |
| 2026-08-28 | Road America Silver | P1 | +94 |
| Rating won | Race | Series | Finish |
|---|---|---|---|
| +202 | Sebring International Raceway 2024 | GT World Challenge America | P1 |
| +198 | Daytona International Speedway 2023 | IMSA WeatherTech | P2 |
| +192 | Daytona International Speedway 2026 | IMSA WeatherTech | P2 |
| +187 | Canadian Tire Motorsport Park 2024 | IMSA WeatherTech | P1 |
| +186 | Sebring International Raceway 2024 | GT World Challenge America | P1 |
| Season | Series | Team | Races | Wins | Podiums | DNFs | Poles | Points | Pos | Gain/Loss | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | βΈGT4 America | RS1 | 11 | 7 | 8 | 0 | 0 | 0 | P1 | +436 | 4,134 |
| βΈIMSA WeatherTech | Magnus Racing | 5 | 0 | 1 | 0 | 0 | 0 | P17 | +281 | ||
| βΈIMSA Pilot Challenge | BGB MOTORSPORTS | 3 | 0 | 0 | 0 | 0 | 0 | P28 | β230 | ||
| βΈInternational GT | 1 | 0 | 1 | 0 | 0 | 0 | P14 | β89 | |||
| 2025 | βΈIMSA Pilot Challenge | BGB MOTORSPORTS | 3 | 0 | 0 | 0 | 0 | 0 | P20 | β68 | 3,736 |
| βΈIMSA WeatherTech | Magnus Racing | 3 | 0 | 0 | 0 | 0 | 0 | P36 | β229 | ||
| βΈGT4 America | Riley Technologies | 2 | 0 | 1 | 0 | 0 | 0 | P13 | +96 | ||
| βΈSVRA | 2 | 0 | 2 | 0 | 0 | 0 | β | β25 | |||
| 2024 | βΈIMSA Pilot Challenge | BGB Motorsports | 10 | 1 | 1 | 0 | 0 | 0 | P16 | β711 | 3,962 |
| βΈIMSA WeatherTech | Magnus Racing | 8 | 1 | 2 | 0 | 0 | 0 | P11 | +298 | ||
| βΈGT World Challenge America | RS1 | 4 | 2 | 4 | 0 | 0 | 0 | P9 | +521 | ||
| 2023 | βΈIMSA Pilot Challenge | BGB Motorsports | 10 | 0 | 1 | 0 | 0 | 0 | P6 | +103 | 3,853 |
| βΈGT World Challenge America | ACI Motorsports | 4 | 0 | 1 | 0 | 0 | 0 | P16 | +160 | ||
| βΈIMSA WeatherTech | Magnus Racing | 4 | 0 | 1 | 0 | 0 | 0 | P24 | +256 | ||
| βΈInternational GT | 2 | 0 | 1 | 0 | 0 | 0 | P26 | β55 | |||
| βΈNASCAR Xfinity | 1 | 0 | 0 | 0 | 0 | 0 | P35 | β35 | |||
| 2022 | βΈInternational GT | 11 | 2 | 5 | 0 | 0 | 0 | P5 | β601 | 3,423 | |
| βΈIMSA Pilot Challenge | BGB Motorsports | 9 | 0 | 0 | 0 | 0 | 0 | P29 | β313 | ||
| βΈIMSA WeatherTech | Magnus Racing | 4 | 0 | 1 | 0 | 0 | 0 | P21 | +325 | ||
| βΈNASCAR Xfinity | 1 | 0 | 0 | 0 | 0 | 0 | P34 | β31 | |||
| 2021 | βΈIMSA WeatherTech | Magnus with Archangel | 4 | 0 | 0 | 0 | 0 | 0 | P21 | +179 | 4,042 |
| βΈNASCAR Xfinity | 3 | 0 | 0 | 0 | 0 | 0 | P32 | β51 | |||
| βΈIMSA Pilot Challenge | Blackdog Speed Shop | 2 | 0 | 0 | 0 | 0 | 0 | P30 | β211 | ||
| 2020 | βΈIMSA WeatherTech | GRT Magnus | 11 | 0 | 2 | 0 | 0 | 0 | P13 | β237 | 3,941 |
| βΈIMSA Pilot Challenge | Team Hardpoint | 5 | 0 | 0 | 0 | 0 | 0 | P29 | β66 | ||
| 2019 | βΈIMSA Pilot Challenge | Moorespeed | 5 | 0 | 0 | 0 | 0 | 0 | P14 | β42 | 4,273 |
| βΈIMSA WeatherTech | Magnus Racing | 4 | 0 | 1 | 0 | 0 | 0 | P21 | +239 | ||
| 2018 | βΈIMSA Pilot Challenge | RS1 | 8 | 0 | 2 | 0 | 0 | 0 | P6 | +132 | 4,325 |
| βΈIMSA WeatherTech | Park Place Motorsports | 1 | 0 | 0 | 0 | 0 | 0 | P32 | β89 | ||
| βΈWEC | Proton Competition | 1 | 0 | 0 | 0 | 0 | 0 | P15 | +97 | ||
| 2017 | βΈIMSA Pilot Challenge | RS1 | 10 | 1 | 3 | 0 | 0 | 0 | P4 | β212 | 4,167 |
| βΈIMSA WeatherTech | Alegra Motorsports | 1 | 0 | 0 | 0 | 0 | 0 | P41 | +29 | ||
| 2016 | βΈIMSA WeatherTech | Change Racing | 8 | 0 | 0 | 0 | 0 | 0 | P12 | β144 | 4,279 |
| βΈIMSA Pilot Challenge | RS1 | 7 | 3 | 4 | 0 | 0 | 0 | P1 | +67 | ||
| 2015 | βΈIMSA WeatherTech | Park Place Motorsports | 10 | 0 | 0 | 0 | 0 | 0 | P36 | β282 | 4,456 |
| 2014 | βΈIMSA WeatherTech | Flying Lizard Motorsports | 11 | 0 | 0 | 0 | 0 | 0 | P36 | β974β265 | 4,484 |
| βΈWEC | JMW Motorsport | 1 | 0 | 0 | 0 | 0 | 0 | P23 | +24 | ||
| 2012 | βΈWEC | Flying Lizard Motorsports | 1 | 0 | 0 | 0 | 0 | 0 | P15 | β2,750+113 | 3,901 |
| 2007 | βΈPCA Club Racing | 1 | 0 | 0 | 1 | 0 | 0 | P34 | β312 | 1,038 |
| Rival | Rating | Raced | Ahead | Behind | Record |
|---|---|---|---|---|---|
| πΊπΈ Robby FoleyFIA Gold | 4,619 | 90 | 31 | 59 | 34% |
| π¬π§ Stevan McAleerFIA Gold | 4,361 | 71 | 32 | 39 | 45% |
| πΊπΈ Jeff WestphalFIA Gold | 4,057 | 70 | 29 | 41 | 41% |
| πΊπΈ Trent HindmanFIA Gold | 4,246 | 67 | 23 | 44 | 34% |
| πΊπΈ Gregory LiefoogheFIA Silver | 3,652 | 67 | 32 | 35 | 48% |
| π¬π§ Robin LiddellFIA Silver | 3,578 | 66 | 28 | 38 | 42% |
| πΊπΈ Bill AuberlenFIA Silver | 3,606 | 65 | 15 | 50 | 23% |
| πΊπΈ Andrew DavisFIA Silver | 3,719 | 59 | 28 | 31 | 47% |
| πΊπΈ Owen TrinklerFIA Bronze | 2,833 | 58 | 32 | 26 | 55% |
| πΊπΈ Eric FossFIA Silver | 3,913 | 55 | 22 | 33 | 40% |
| π³πΏ Scott McLaughlinFIA Platinum, 2Γ champion | 6,770 | 1 | 1 | 0 | 100% |
| πΊπΈ Kyle KirkwoodFIA Gold, 3Γ champion | 6,648 | 8 | 6 | 2 | 75% |
| πΊπΈ Chase BriscoeHigher-rated, 1Γ champion | 6,639 | 9 | 6 | 3 | 67% |
| # | Driver | Series | Rating |
|---|---|---|---|
| 3,030 | πΊπΈ Ross Kenseth | NASCAR Xfinity | 4,136 |
| 3,031 | π―π² Tommi Gore | Lamborghini Super Trofeo NA | 4,136 |
| 3,032 | π³οΈ Bobby Thompson | GT World Challenge Europe | 4,135 |
| 3,033 | πΈπͺ Markus LΓΆnnroth | NΓΌrburgring 24 Hours | 4,135 |
| 3,034 | πΊπΈ Nate Cicero | IMSA Pilot Challenge | 4,135 |
| 3,035 | π©πͺ Henrik Roos | FIA GT Championship | 4,134 |
| 3,036 | π―π΅ Hiroaki Nagai | GT World Challenge Asia | 4,134 |
| 3,037 | π¬π§ Jack Bartholomew | GB3 | 4,134 |
| 3,038 | ππ· Marin Colak | World Touring Car Championship | 4,134 |
| 3,039 | π©πͺ Sandy Grau | FIA GT Championship | 4,134 |
| 3,040 | πΊπΈ Spencer Pumpelly | GT4 America | 4,134 |
| 3,041 | π¦πΊ Duvashen Padayachee | FIA Formula 3 European | 4,133 |
| 3,042 | π¦πΉ Markus Friesacher | International Formula 3000 | 4,133 |
| 3,043 | π³π± Phil Bastiaans | FIA GT Championship | 4,133 |
| 3,044 | π¬π§ Robert Nimkoff | American Endurance Racing | 4,133 |
| 3,045 | π―π΅ Shinichi Yamaji | Super GT | 4,133 |
| 3,046 | π¨π¦ Larry Pollard | NASCAR Xfinity | 4,132 |
| 3,047 | π©πͺ Ben DΓΆrr | DTM | 4,131 |
| 3,048 | πΊπΈ Davey Allison | NASCAR Xfinity | 4,131 |
| 3,049 | π¬π§ Ibrahim Badawy | Asian Le Mans Series | 4,131 |
| 3,050 | π²π½ Jorge Goeters | NASCAR Xfinity | 4,131 |
Spencer Pumpelly is a professional sportscar driver competing primarily in IMSA's national multiclass endurance championships and their GT-focused counterparts. Graded FIA Silver, he sits below the full-professional ranks in the endurance racing hierarchy. His current racing centres on GT4 America and IMSA Pilot Challenge, where he drives GT4-level production-based sports cars for RS1; he also contests IMSA WeatherTech's GTD class in GT3 machinery for Magnus Racing.[1]
A veteran of fifteen seasons on record beginning in 2007, Pumpelly has accumulated 192 starts across eight series with seventeen wins and forty-two podiums. His breakthrough came in 2016 when he won the IMSA Pilot Challenge championship; a decade later he added the 2026 GT4 America title with RS1, the same team fielding him across thirteen starts that season. His strength lies in the shorter-format endurance races of the Pilot Challenge and GT4 America series, where he has taken five wins and seven wins respectively against shared-car competition mixing amateurs with professionals. In IMSA WeatherTech, the top-tier national championship, he has been less prominent: one win across seventy-four starts since 2014 places him as a regular entrant without a consistent winning presence at that level.[2]
Within his regular company Pumpelly typically finishes behind Robby Foley, a Gold-graded professional and two-time champion, while running closely matched with Stevan McAleer, another Gold-graded regular in Pilot Challenge. His career has occasionally intersected with elite-level drivers; he finished ahead of Kyle Kirkwood, a three-time champion and current IndyCar regular, in six separate meetings across IMSA WeatherTech. Against Scott McLaughlin, a Platinum-graded former two-time Supercars champion, he holds a single finish advantage. These instances are outliers in a career built on consistency within the semi-professional and mid-field professional ranks rather than on sustained competition with the strongest drivers in endurance racing.