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Former World Series of Fighting champions Andre Harrison and Lance Palmer advanced to the Professional Fighters League postseason with victories Thursday night at PFL 4.

Palmer bested Jumabieke Tuerxun in the main event with a third round submission, with Harrison topping Nazareno Malegarie.

Both will compete in the featherweight playoff along with Steven Siler, Timur Valiev, Alexandre Almeida, Max Coga and Malegarie. One final spot remains between Magomed Idrisov and Lee Coville.

Francimar Barroso, Siler and Philipe Lins also earned main card wins on NBC Sports Network.

Complete results are below:

Lance Palmer def. Jumabieke Tuerxun via submission (neck crank) at 3:43 of Round 3

Andre Harrison def. Nazareno Malegarie via unanimous decision (30-27, 30-27, 30-27)

Francimar Barroso def. Jack May via submission (arm-triangle choke) at 1:36 of Round 1

Steven Siler def. Alexandre Almeida via submission (guillotine choke) at :34 of Round 1

Philipe Lins def. Alex Nicholson via TKO (strikes) at 3:39 of Round 2

Kelvin Tiller def. Jared Rosholt via submission (guillotine choke) at :54 of Round 2

Timur Valiev def. Bekbulat Magomedov via unanimous decision (30-27, 30-27, 30-27)

Max Coga def. Marcos Galvao via TKO (strikes) at 2:19 of Round 3

Josh Copeland def. Shawn Jordan via unanimous decision (29-28, 29-28, 29-28)

Valdrin Istrefi def. Daniel Gallemore via TKO (referee’s stoppage) at 1:42 of Round 2