Brian Foster thought his night was over with a first round submission loss to Joao Zeferino Friday night at World Series of Fighting 25.

Two fights later, and Foster had earned the No. 1 contender spot in the lightweight division, capping an incredible tournament run.

Foster was placed back in the field and took full-advantage, finishing Luis Palomino and Zeferino. He scored a second round TKO vs. Palomino and a second round knockout of Zeferino in the finals.

Jason High had a strong WSOF debut, earning himself a TKO vs. Estevan Payan.

Check out complete results below:

Brian Foster def. Joao Zeferino via KO (strike) at 4:51 of Round 2 to win WSOF lightweight tournament

Jason High def. Estevan Payan via TKO (head kick, strikes) at :47 of Round 2

Brian Foster def. Luis Palomino via TKO (strikes) at 4:19 of Round 2, 4:19

Joao Zeferino def. Jorge Patino via submission (heel hook) at 1:24 of Round 1, 1:24

Joseph Barajas def. Erik Villalobos via TKO (strikes) at 4:06 of Round 3

Roberto Yong def. Jimmy Scully via TKO (strikes) at 1:11 of Round 1

Luis Palomino def. Richard Patishnock via KO (strike) at 4:55 of Round 1, 4:55

Joao Zeferino def. Brian Foster via submission (heel hook) at 1:46 of Round 1

Mike Ricci def. Joe Condon via TKO (head kick, strikes) at 2:41 of Round 1, 2:41

Islam Mamedov def. Jorge Patino via unanimous decision

Ramil Mustapayev def. LaRue Burley via unanimous decision