William Byron is a racing driver who competes in NASCAR Cup Series. Byron has recorded 19 wins and 57 podiums from 352 starts.[1]
A Racer Rating of 4,913 ranks Byron 264th of 12,285 indexed drivers, on an Elo scale where the strongest reach the low five figures. It is built from every indexed race in the driver's file.
| Season | Series | Team | Races | Wins | Podiums | DNFs | Poles | Points | Pos | Gain/Loss | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | NASCAR Cup Series | 21 | 0 | 3 | 0 | 0 | 0 | P2 | −35 | 4,913 | |
| NASCAR Xfinity Series | 3 | 0 | 1 | 0 | 0 | 0 | P54 | +3 | |||
| 2025 | NASCAR Cup Series | 39 | 3 | 9 | 0 | 0 | 0 | P18 | −472 | 4,945 | |
| NASCAR Truck Series | 2 | 0 | 1 | 0 | 0 | 0 | P50 | −78 | |||
| NASCAR Xfinity Series | 2 | 1 | 2 | 0 | 0 | 0 | P45 | +71 | |||
| 2024 | NASCAR Cup Series | 39 | 3 | 11 | 0 | 0 | 0 | P10 | −189 | 5,423 | |
| NASCAR Xfinity Series | 4 | 0 | 1 | 0 | 0 | 0 | P47 | −166 | |||
| 2023 | NASCAR Cup Series | 39 | 6 | 10 | 0 | 0 | 0 | P10 | +551 | 5,778 | |
| NASCAR Truck Series | 3 | 0 | 1 | 0 | 0 | 0 | P64 | −4 | |||
| NASCAR Xfinity Series | 1 | 0 | 1 | 0 | 0 | 0 | P58 | +50 | |||
| 2022 | NASCAR Cup Series | 38 | 2 | 4 | 0 | 0 | 0 | P6 | +355 | 5,180 | |
| NASCAR Xfinity Series | 3 | 0 | 1 | 0 | 0 | 0 | P74 | −230 | |||
| NASCAR Truck Series | 1 | 1 | 1 | 0 | 0 | 0 | P55 | +39 | |||
| 2021 | NASCAR Cup Series | 39 | 1 | 7 | 0 | 0 | 0 | P5 | +387 | 5,016 | |
| NASCAR Truck Series | 1 | 0 | 0 | 0 | 0 | 0 | P92 | −265 | |||
| 2020 | NASCAR Cup Series | 40 | 2 | 2 | 0 | 0 | 0 | P14 | +90 | 4,894 | |
| 2019 | NASCAR Cup Series | 39 | 0 | 2 | 0 | 0 | 0 | P30 | +754 | 4,805 | |
| 2018 | NASCAR Cup Series | 38 | 0 | 0 | 0 | 0 | 0 | P28 | +51 | 4,051 |
| Rival | Rating | Raced | Ahead | Behind | Record |
|---|---|---|---|---|---|
| 🏳️ Ryan Blaney | 5,486 | 326 | 145 | 181 | 44% |
| 🇺🇸 Bubba Wallace | 4,712 | 326 | 214 | 112 | 66% |
| 🏳️ Joey Logano | 4,533 | 325 | 140 | 185 | 43% |
| 🏳️ Brad Keselowski | 4,514 | 323 | 157 | 166 | 49% |
| 🇺🇸 Kyle Busch | 4,645 | 321 | 153 | 168 | 48% |
| 🇺🇸 Denny Hamlin | 5,642 | 320 | 119 | 201 | 37% |
| 🏳️ Daniel Suarez | 4,898 | 320 | 187 | 133 | 58% |
| 🇺🇸 Austin Dillon | 4,371 | 320 | 198 | 122 | 62% |
| 🏳️ Chris Buescher | 5,144 | 319 | 191 | 128 | 60% |
| 🇺🇸 Michael McDowell | 4,833 | 319 | 219 | 100 | 69% |
William McComas Byron Jr. is an American stock car racing driver competing full-time in the NASCAR Cup Series. Byron built his early reputation through iRacing and sim racing success before transitioning into stock car competition, a path that helped him rise quickly through NASCAR's developmental ranks before he reached the sport's top level. He has driven for Hendrick Motorsports, one of the sport's most prominent organizations, in the Cup Series behind the wheel of the No. 24 Chevrolet ZL1.[1]
Across 352 career Cup Series starts, Byron has recorded 19 wins and 57 podium finishes, though he has not yet claimed a series championship. His Racer Rating stands at 4,913, placing him 264th among active drivers on a scale where the sport's elite competitors reach figures between 10,000 and 11,500. In the 2026 season, Byron has made 3 starts with 1 podium finish and no wins, currently sitting P54 in the standings. He also competes part-time in the NASCAR O'Reilly Auto Parts Series, driving the No. 88 Chevrolet SS for JR Motorsports, maintaining ties to the developmental ranks he emerged from earlier in his career.[2]