The 2021 Camping World SRX Series was the inaugural season of the Superstar Racing Experience.
He held on to win the heat over Bobby Labonte at the end of the 15-minute time limit, leading all 36 laps.
The field was inverted for the second 15-minute heat, with Doug Coby passing Michael Waltrip for the win with two to go.
Coby, a real estate agent who participates in Modified races in the Northeast, then led 84 laps of the 100-lap feature, winning the event ahead of Biffle and Tony Stewart.
Tony Stewart started on pole for heat 1 and led for the entire 12-minute session, which consisted of 23 laps.
Michael Waltrip and Willy T. Ribbs started up front for the second heat.
The heat was extended due to a green-white-checker finish after Paul Tracy spun and hit the wall with 40 seconds left; Bloomquist went on to win.
Stewart started on the pole for the 50-lap feature, based on average finishing positions from the two heats.
Paul Tracy fell out early after overheating, and several cautions flew for spins during the first quarter of the race.
The second heat was marred by accidents and completed only 11 green-flag laps before the time limit.
While battling for second Ernie Francis Jr. spun Kanaan, also collecting Michael Waltrip and Kody Swanson and causing Stewart to spin.
The race restarted with six minutes remaining, with Marco Andretti battling Scott Speed for the lead.
Stewart started on pole for the feature but elected to drop to the back during the pace laps.
Tracy retook the lead on the restart and led two laps before relinquishing the top spot back to Swanson.
Francis retained the lead on the lap 55 restart, ahead of Speed, Labonte, and Castroneves.
Hailie Deegan took the lead on the restart, but another caution quickly waved after Michael Waltrip was rear-ended by Hélio Castroneves.
Greg Biffle took the lead with two minutes left and went on to win while holding off Deegan and Francis.
Following the restart at lap 112, Stewart and Fenhaus battled for the lead as Francis, Tracy, and Deegan made contact multiple times back in the field.
Bill led for the majority off the heat, fending off a late challenge from Chase to win.
On the lap 55 restart, Bill ran high in turn two, allowing Chase and Stewart to move into the top spots.
The third caution flew on lap 57 when Willy T. Ribbs spun after contact with Paul Tracy.