Cup Series
William Byron (2025)
2025 Statistics
| Driver Points | 165 | Driver Points Rank | 1 |
| Races Won | 1 | Points per NASCAR Race | 39 |
| Races Won (%) | 25% | NASCAR Won (%) | 25% |
| Average Start | 9.2 | Average Finish Overall | 9 |
| Average Finish Last 5 | 9 | Average Finish Last 10 | 9 |
| Driver Races Run | 4 | Points per Driver Race Run | 39 |
| NASCAR Races Run | 4 | Percentage NASCAR Races Run | 100% |
| Top 5 Finishes | 2 | Races Top 5 (%) | 50% |
| Top 10 Finishes | 3 | Races Top 10 (%) | 75% |
| NASCAR Top 5 (%) | 50% | NASCAR Top 10 (%) | 75% |
| Avg Start-to-Finish | +0.2 | Best Start Position | 1 |
| Driver Laps Run | 871 | Driver Races Laps | 874 |
| Percentage Race Laps Run | 99.7% | Percentage Races Finished Laps Run | 99.7% |
| NASCAR Races Laps | 874 | Percentage NASCAR Laps Run | 99.7% |
| Did Not Finish | 0 | Did Not Finish (%) | 0% |
2025 Race by Race for William Byron
| Date | Event Name | Finish | Start | Laps Run | Race Laps | Pts/PP Earned | Odds | Finish Status |
| 2/2/25 | Cook Out Clash at Bowman Gray | 18 | 11 | 199 | 200 | 0/0 | Running | |
| 2/13/25 | Duel 1 at DAYTONA | 2 | 11 | 60 | 60 | 9/0 | Running | |
| 2/16/25 | DAYTONA 500 | 1 | 5 | 201 | 201 | 41/5 | 14-1 | Running |
| 2/23/25 | Ambetter Health 400 | 27 | 16 | 263 | 266 | 25/0 | 11-1 | Running |
| 3/2/25 | EchoPark Automotive Grand Prix | 2 | 15 | 95 | 95 | 41/0 | Running | |
| 3/9/25 | Shriners Children's 500 | 6 | 1 | 312 | 312 | 49/1 | Running |