William Byron

Short at 0.97
Inter at 0.97
Long at 1.00
Super at 0.73
Road at 0.97
8/31
21
Darl
9/7
11
WWT
9/13
12
Bri
9/21
3
NH
9/28
9
Kan
10/5
11
Roval
10/12
36
Vegas
10/19
25
Dega
10/26
1
Mar
11/2
33
Phx
Success Rate
Average Finish Position
PFAE
Age: 28
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Stats

Stats on this page
  • W% - Winning percentage
  • T5% - Top 5 percentage
  • T10% - Top 10 percentage
  • f-stats - The stat but in finishes
  • Fin% - Percentage of races finishes
  • SS - Speed score - 1000 x the ratio of the driver's 95th percentile lap to the race 95th percentile lap. A good read of a driver's top speed. [Read more]
Track Types
  • Short Tracks
    • Tracks less than 1 mile in length
    • Bristol , Dover , Dover , ISM , Iowa , Los Angeles Memorial Coliseum , Lucas Oil Indianapolis Park , Martinsville , New Hampshire , North Wilkesboro , Phoenix , Richmond , Richmond , Milwaukee Mile , The Milwaukee Mile , Rockingham , Bowman Gray Stadium
  • Intermediate Tracks
    • Tracks around 1.5 miles in length
    • Charlotte , Darlington , Gateway Motorsports Park , Homestead-Miami , Kansas , Kentucky , Las Vegas , Nashville , Texas , World Wide Technology at Gateway , Gateway
    • Note: Atlanta is classified as Intermediate through 2021
  • Long Tracks
    • Longer, non-drafting tracks
    • Auto Club , Chicagoland , Indianapolis , Michigan , Pocono
  • Super Speedways
    • Drafting tracks
    • Daytona , Talladega
    • Note: Atlanta is classified as Super Speedway from 2022 onwards
  • Road Courses
    • Autodromo Hermanos Rodriguez , Autódromo Hermanos Rodríguez , Canadian Tire Motorsport Park , Charlotte Road Course , Chicago Street Race , COTA , DAYTONA Road Course , Daytona Road Course , Indianapolis Road Course , Mid-Ohio Sports Car Course , Portland , Road America , Sonoma , Watkins Glen , EchoPark , Lime Rock Park
  • Dirt Tracks
    • Bristol Dirt , Eldora , Knoxville
Season Age Car Starts W% T3% T5% T10% fW% fT3% fT5% fT10% ASP AFP ARP Fin% fAFP Succ% SS Pen. Driver Pen. Crew Pen. Cau. Inv.
2018 20 24 Chevy 36 0.0 0.0 0.0 11.1 0.0 0.0 0.0 14.8 17.67 22.08 75.00 17.74 44.4 0.00 0.00 0.00 0.33
2019 21 24 Chevy 36 0.0 5.6 13.9 36.1 0.0 6.1 15.2 39.4 12.42 14.89 91.67 13.42 61.1 0.00 0.00 0.00 0.22
2020 22 24 Chevy 36 2.8 2.8 11.1 38.9 3.1 3.1 12.5 43.8 14.89 16.19 13.36 88.89 13.53 63.9 -0.02 0.56 0.36 0.19 0.25
2021 23 24 Chevy 36 2.8 19.4 33.3 55.6 3.2 22.6 38.7 64.5 8.72 13.64 8.70 86.11 10.19 63.9 5.07 0.36 0.14 0.19 0.19
2022 24 24 Chevy 36 5.6 11.1 13.9 30.6 6.7 13.3 16.7 36.7 12.50 15.56 10.21 83.33 12.03 61.1 1.74 0.25 0.14 0.11 0.06
2023 25 24 Chevy 36 16.7 27.8 41.7 58.3 18.2 30.3 45.5 63.6 10.89 10.97 9.56 91.67 8.91 75.0 4.34 0.00 0.00 0.00 0.11
2024 26 24 Chevy 36 8.3 30.6 36.1 58.3 9.4 34.4 40.6 65.6 9.56 12.94 10.94 88.89 10.56 66.7 2.23 0.00 0.00 0.00 0.28
2025 27 24 Chevy 36 8.3 22.2 30.6 44.4 9.4 25.0 34.4 50.0 9.94 14.53 8.91 88.89 11.84 61.1 4.64 0.00 0.00 0.00 0.19

Career Stats

Track Types
  • Short Tracks
    • Tracks less than 1 mile in length
    • Bristol , Dover , Dover , ISM , Iowa , Los Angeles Memorial Coliseum , Lucas Oil Indianapolis Park , Martinsville , New Hampshire , North Wilkesboro , Phoenix , Richmond , Richmond , Milwaukee Mile , The Milwaukee Mile , Rockingham , Bowman Gray Stadium
  • Intermediate Tracks
    • Tracks around 1.5 miles in length
    • Charlotte , Darlington , Gateway Motorsports Park , Homestead-Miami , Kansas , Kentucky , Las Vegas , Nashville , Texas , World Wide Technology at Gateway , Gateway
    • Note: Atlanta is classified as Intermediate through 2021
  • Long Tracks
    • Longer, non-drafting tracks
    • Auto Club , Chicagoland , Indianapolis , Michigan , Pocono
  • Super Speedways
    • Drafting tracks
    • Daytona , Talladega
    • Note: Atlanta is classified as Super Speedway from 2022 onwards
  • Road Courses
    • Autodromo Hermanos Rodriguez , Autódromo Hermanos Rodríguez , Canadian Tire Motorsport Park , Charlotte Road Course , Chicago Street Race , COTA , DAYTONA Road Course , Daytona Road Course , Indianapolis Road Course , Mid-Ohio Sports Car Course , Portland , Road America , Sonoma , Watkins Glen , EchoPark , Lime Rock Park
  • Dirt Tracks
    • Bristol Dirt , Eldora , Knoxville
Series Starts W% T3% T5% T10% fW% fT3% fT5% fT10% ASP AFP ARP Fin% fAFP Succ% SS Pen. Driver Pen. Crew Pen. Cau. Inv.
Truck 7 14.3 42.9 57.1 57.1 16.7 50.0 66.7 66.7 13.14 10.14 7.33 85.71 5.83 71.4 5.86 0.14 0.14 0.00 0.00
Xfinity 43 11.6 30.2 39.5 62.8 13.2 34.2 44.7 71.1 9.37 10.44 10.99 88.37 7.87 74.4 5.32 0.00 0.00 0.00 0.19
Cup 288 5.6 14.9 22.6 41.7 6.4 17.2 26.0 48.0 12.07 15.10 10.30 86.81 12.17 62.2 2.99 0.15 0.08 0.06 0.20

Career stats go back to 2020 for lap-by-lap statistics and 2017 for race-by-race statistics.

Splits

Terms
S: short tracks
I: intermediate tracks
L: long tracks (think Michigan, Chicago)
SS: super speedways
R: road courses
D: dirt
Season Age Car Starts AFP S S AFP I I AFP L L AFP SS SS AFP R R AFP D D AFP
2018 20 24 Chevy 36 22.08 11 22.08 11 22.08 7 22.08 4 22.08 3 22.08 0 22.08
2019 21 24 Chevy 36 14.89 11 14.89 11 14.89 7 14.89 4 14.89 3 14.89 0 14.89
2020 22 24 Chevy 36 16.19 10 16.19 14 16.19 6 16.19 4 16.19 2 16.19 0 16.19
2021 23 24 Chevy 36 13.64 9 13.64 12 13.64 3 13.64 4 13.64 7 13.64 1 13.64
2022 24 24 Chevy 36 15.56 9 15.56 11 15.56 3 15.56 6 15.56 6 15.56 1 15.56
2023 25 24 Chevy 36 10.97 9 10.97 11 10.97 3 10.97 6 10.97 6 10.97 1 10.97
2024 26 24 Chevy 36 12.94 11 12.94 11 12.94 3 12.94 6 12.94 5 12.94 0 12.94
2025 27 24 Chevy 36 14.53 10 14.53 11 14.53 3 14.53 6 14.53 6 14.53 0 14.53