NASCAR releases stage lengths for the 2021 season
NASCAR has released stage lengths for the 2021 season.
NASCAR Cup Series
| Track | Stage 1 Ends | Stage 2 Ends | Final Stage Ends |
| Daytona International Speedway | (Lap) 65 | (Lap) 130 | (Lap) 200 |
| Daytona International Speedway Road Course | 16 | 34 | 70 |
| Homestead-Miami Speedway | 80 | 160 | 267 |
| Las Vegas Motor Speedway | 80 | 160 | 267 |
| Phoenix Raceway | 75 | 190 | 312 |
| Atlanta Motor Speedway | 105 | 210 | 325 |
| Bristol Motor Speedway (Dirt) | 75 | 150 | 250 |
| Martinsville Speedway | 130 | 260 | 500 |
| Richmond Raceway | 80 | 235 | 400 |
| Talladega Superspeedway | 60 | 120 | 188 |
| Kansas Speedway | 80 | 160 | 267 |
| Darlington Speedway | 90 | 185 | 293 |
| Dover International Speedway | 120 | 240 | 400 |
| Circuit of the Americas | TBD | TBD | TBD |
| Charlotte Motor Speedway | 100 | 200 | Stage 3: 300 / Final Stage: 400 |
| Sonoma Raceway | 20 | 40 | 90 |
| Texas Motor Speedway (All-Star Race) | TBD | TBD | TBD |
| Nashville Superspeedway | 90 | 185 | 300 |
| Pocono Raceway | 25 | 77 | 130 |
| Pocono Raceway | 30 | 85 | 140 |
| Road America | 14 | 29 | 62 |
| Atlanta Motor Speedway | 80 | 160 | 260 |
| New Hampshire Motor Speedway | 75 | 185 | 301 |
| Watkins Glen International | 20 | 40 | 90 |
| Indianapolis Motor Speedway Road Course | 15 | 35 | 82 |
| Michigan International Speedway | 60 | 120 | 200 |
| Daytona International Speedway | 50 | 100 | 160 |
| Darlington Raceway | 115 | 230 | 367 |
| Richmond Raceway | 80 | 235 | 400 |
| Bristol Motor Speedway | 125 | 250 | 500 |
| Las Vegas Motor Speedway | 80 | 160 | 267 |
| Talladega Superspeedway | 60 | 120 | 188 |
| Charlotte Motor Speedway Roval | 25 | 50 | 109 |
| Texas Motor Speedway | 105 | 210 | 334 |
| Kansas Speedway | 80 | 160 | 267 |
| Martinsville Speedway | 130 | 260 | 500 |
| Phoenix Raceway | 75 | 190 | 312 |
NASCAR Xfinity Series
| Track | Stage 1 | Stage 2 | Final Stage |
| Daytona International Speedway | 30 | 60 | 120 |
| Daytona International Speedway Road Course | 15 | 30 | 52 |
| Homestead-Miami Speedway | 40 | 80 | 167 |
| Las Vegas Motor Speedway | 45 | 90 | 200 |
| Phoenix Raceway | 45 | 90 | 200 |
| Atlanta Motor Speedway | 40 | 80 | 163 |
| Martinsville Speedway | 60 | 120 | 250 |
| Talladega Superspeedway | 25 | 50 | 113 |
| Darlington Raceway | 45 | 90 | 147 |
| Dover International Speedway | 45 | 90 | 200 |
| Circuit of the Americas | TBD | TBD | TBD |
| Charlotte Motor Speedway | 45 | 90 | 200 |
| Mid-Ohio Sports Car Course | 25 | 50 | 75 |
| Texas Motor Speedway | 40 | 80 | 167 |
| Nashville Superspeedway | 45 | 95 | 188 |
| Pocono Raceway | 20 | 40 | 90 |
| Road America | 14 | 29 | 45 |
| Atlanta Motor Speedway | 40 | 80 | 163 |
| New Hampshire Motor Speedway | 45 | 90 | 200 |
| Watkins Glen International | 20 | 40 | 82 |
| Indianapolis Motor Speedway Road Course | 20 | 40 | 62 |
| Michigan International Speedway | 30 | 60 | 125 |
| Daytona International Speedway | 30 | 60 | 100 |
| Darlington Raceway | 45 | 90 | 147 |
| Richmond Raceway | 75 | 150 | 250 |
| Bristol Motor Speedway | 85 | 170 | 300 |
| Las Vegas Motor Speedway | 45 | 90 | 200 |
| Talladega Superspeedway | 25 | 50 | 113 |
| Charlotte Motor Speedway Roval | 20 | 40 | 67 |
| Texas Motor Speedway | 45 | 90 | 200 |
| Kansas Speedway | 45 | 90 | 200 |
| Martinsville Speedway | 60 | 120 | 250 |
| Phoenix Raceway | 45 | 90 | 200 |
NASCAR Camping World Truck Series
| Track | Stage 1 | Stage 2 | Final Stage |
| Daytona International Speedway | 20 | 40 | 100 |
| Daytona International Speedway Road Course | 12 | 25 | 44 |
| Las Vegas Motor Speedway | 30 | 60 | 134 |
| Atlanta Motor Speedway | 30 | 60 | 130 |
| Bristol Motor Speedway (Dirt) | 40 | 90 | 150 |
| Richmond Raceway | 70 | 140 | 250 |
| Kansas Speedway | 30 | 60 | 134 |
| Darlington Raceway | 45 | 90 | 147 |
| Circuit of the Americas | TBD | TBD | TBD |
| Charlotte Motor Speedway | 30 | 60 | 134 |
| Texas Motor Speedway | 35 | 70 | 147 |
| Nashville Superspeedway | 45 | 95 | 150 |
| Pocono Raceway | 15 | 30 | 60 |
| Knoxville Speedway | 40 | 90 | 150 |
| Watkins Glen International | 20 | 45 | 72 |
| World Wide Technology Raceway at Gateway | 55 | 110 | 160 |
| Canadian Tire Motorsport Park | 20 | 40 | 64 |
| Bristol Motor Speedway | 55 | 110 | 200 |
| Las Vegas Motor Speedway | 30 | 60 | 134 |
| Talladega Superspeedway | 20 | 40 | 94 |
| Martinsville Speedway | 50 | 100 | 200 |
| Phoenix Raceway | 45 | 90 | 150 |
Playoff races in bold
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