Christopher Bell admitted that he “lost (his) cool” before crashing in the final stage of Sunday’s NASCAR Cup Series race at Nashville Superspeedway.

Bell was the dominant car in the Ally 400. In addition to sweeping both stages, Bell led a race-high 131 laps before his incident.

But a caution on lap 219 changed his afternoon. Bell came down pit road in second position, having lost the lead to Tyler Reddick after the two battled side-by-side for a handful of laps. When the caution came out, NASCAR deemed Reddick was ahead of Bell.