 | |
| NASCAR Camping World Truck Series | |
|---|---|
| Venue | Knoxville Raceway |
| Location | Knoxville, Iowa |
| Corporate sponsor | Clean Harbors |
| First race | 2021 |
| Last race | 2022 |
| Distance | 75 miles (121 km) |
| Laps | 150[1] Stage 1: 40 Stage 2: 50 Final stage: 60 |
| Previous names | Corn Belt 150 presented by Premier Chevy Dealers (2021) |
| Circuit information | |
| Surface | Dirt |
| Length | .5 mi (0.80 km) |
| Turns | 4 |
The Clean Harbors 150 was a NASCAR Camping World Truck Series racing event at Knoxville Raceway in Iowa. The inaugural running of the race was on July 9, 2021, the first NASCAR national touring event to be held at the historic facility. This is the third dirt track that the Truck Series has raced at, with the first being Eldora Speedway and the second being the dirt iteration of Bristol Motor Speedway.
- ^ "Stage lengths for 2021 NASCAR season". NASCAR. January 25, 2021. Retrieved January 31, 2021.