Britt stopped Terry Cohens with strikes in 31 seconds to improve his record to 6-1.
On "The Ultimate Fighter 8" show, Britt qualified to stay on the show after winning his elimination bout, but was forced to pull out due to a broken hand.
Here are the rest of the results from UWC: Confrontation at the Patriot Center in Fairfax, Virginia. The attendance was 5,528.
1. Kris McCray def. Joey Kirwan via submission - R1 (1:35)
2. Cody Donovan def. Wade Drake via KO - R1 (0:15)
3. Levon Maynard def. Toby Johnson via TKO (strikes) - R1 (3:40)
4. Ron Stallings def. Tony Sousa via TKO (strikes) - R2 (1:02)
5. Brendan Schaub def. Johnny Curtis via TKO - R1 (1:07)
6. Marcus Foran def. Chris Reedy via submission - R1 (0:58)
7. Kyle Baker def. James "Binky" Jones via unanimous decision
8. Mike Easton def. John Dodson via split decision
9. Antwain Britt def. Terry Cohens via TKO (strikes) - R1 (0:31)