Christopher Bell holds off Brad Keselowski, wins wild Bristol night race

"I was nervous on the choose," Bell told USA Network. "I didn't know whether I wanted to be on the bottom or the top. Had to pick the bottom. I was hoping that those guys on old tires would push up, and they did."

Bass Pro Night Race was unpredictable

Saturday's race featured plenty of tire wear and threw plenty of curveballs at teams, but Bell and the No. 20 team figured out how to hit one of those curveballs at the right time. 

Alex Bowman, Austin Dillon, Shane van Gisbergen and Josh Berry were all eliminated from the Cup Series playoffs, with Berry finishing last after his car caught on fire in Stage 1. 

Despite his car catching on fire late in the race, Austin Cindric held on to snag the 12th and final transfer spot for the Round of 12. 

The Round of 12 will begin at New Hampshire Motor Speedway on Sept. 21. The Mobil 1 301 will go green shortly after 2 p.m. ET, with coverage on USA Network, PRN and SiriusXM NASCAR Radio.