The UFC completed a weekend doubleheader Sunday with The Ultimate Fighter 21 Finale from Las Vegas.

Stephen Thompson earned a knockout victory over No. 9 Jake Ellenberger in his first UFC main event, unloading with several spinning hook kicks – the last of which knocked “The Juggernaut” out. The second ended the fight in the opening round, giving “Wonderboy” the biggest win of his career.

Blackzilians standout Kamaru Usman claimed a victory over American Top Team’s Hayder Hassan in the finals of The Ultimate Fighter 21. Usman locked up a tight choke early in the second round after controlling the first, netting himself his sixth career victory and $300,000 for his gym.

In the second ATT vs. Blackzilians battle, it was Michael Graves using his wrestling to claim a decision victory over Vicente Luque. Both fighters went 1-1 during the season and earned another shot to perform inside the Octagon.

Making his Octagon debut at welterweight, Jorge Masvidal showed his power and strength by knocking out Cezar Ferreira. Masvidal, a top contender in the lightweight ranks, landed with a nasty counter to defeat the Brazilian.

Former Invicta FC atomweight champion Michelle Waterson made a splash in her UFC debut, submitting Angela Magana with a third round rear-naked choke. Waterson survived an early armbar, coming back to control and dominate Magana, an alum of The Ultimate Fighter.

Maximo Blanco started the main card off with a bang, flooring Mike De La Torre and earning a victory in just 16 seconds. After connecting with a combination, the referee stepped in even though De La Torre appeared to be ready to continue.

TUF alum Josh Samman stole the show on the prelims, ending the early fights with a first round submission win over Caio Magalhaes. After blooding the Brazilian, Samman locked up a rear-naked choke in just under three minutes for the win.

Jerrod Sanders, a heavy underdog to Russell Doane, upset the Hawaiian by scoring a decision victory. Trevor Smith spoiled the Octagon return of Dan Miller, earning an easy decision.

George Sullivan turned back the effort of Dominic Waters, claiming a decision. Waters, who was almost finished after the first, nearly secured a stunning submission in the third. Willie Gates started fast as he likes to do, scoring a first round finish vs. Darrell Montague to begin the night in the flyweight division.

Thompson, Usman, Masvidal and Samman all earned “Performance of the Night” bonuses and $50,000. The attendance was announced at 4,844 with a live gate of $291,000.

Complete results can be found below, and for full play-by-play of all the action, check out FightLine:

Stephen Thompson def. Jake Ellenberger via KO (spinning hook kick) at 4:29 of Round 1

Kamaru Usman def. Hayder Hassan via submission (arm-triangle choke) at 1:19 of Round 2 to win The Ultimate Fighter 21

Michael Graves def. Vicente Luque via unanimous decision (29-28, 29-28, 29-28)

Jorge Masvidal def. Cezar Ferreira via KO (strikes) at 4:22 of Round 1

Michelle Waterson def. Angela Magana via submission (rear-naked choke) at 2:38 of Round 3

Maximo Blanco def. Mike De La Torre via TKO (strikes) at :16 of Round 1

Josh Samman def. Caio Magalhaes via submission (rear-naked choke) at 2:52 of Round 1

Jerrod Sanders def. Russell Doane via unanimous decision (29-28, 30-27, 29-28)

Trevor Smith def. Dan Miller via unanimous decision (30-25, 30-25, 30-26)

George Sullivan def. Dominic Waters via unanimous decision (29-27, 30-25, 29-28)

Willie Gates def. Darrell Montague via TKO (strikes) at 1:36 of Round 1