| Season | Champion | Class | Car / Team |
|---|---|---|---|
| 2025 | Matt Campbell, Mathieu Jaminet | GTP |  Porsche Penske Motorsport |
| 2024 | Felipe Nasr, Dane Cameron | GTP | Porsche Penske Motorsport |
| 2023 | Pipo Derani, Alexander Sims | GTP | Whelen Engineering Racing |
| 2022 | Oliver Jarvis, Tom Blomqvist | DPi | Meyer Shank Racing |
| 2021 | Pipo Derani, Felipe Nasr | DPi | Whelen Engineering Racing |
| 2020 | Ricky Taylor, Hélio Castroneves | DPi |  Acura Team Penske |
| 2019 | Dane Cameron, Juan Pablo Montoya | DPi | Acura Team Penske |
| 2018 | Eric Curran, Felipe Nasr | P | Whelen Engineering Racing |
| 2017 | Jordan Taylor, Ricky Taylor | P | Wayne Taylor Racing |
| 2016 | Dane Cameron, Eric Curran | P | Action Express Racing |
| 2015 | João Barbosa, Christian Fittipaldi | P | Action Express Racing |
| 2014 | João Barbosa, Christian Fittipaldi | P | Action Express Racing |
The driver champions of the top class of the IMSA WeatherTech SportsCar Championship since the merger of ALMS and Grand-Am in 2014 — Prototype (P), DPi from 2019, GTP from 2023. As of: including 2025.