Patricky “Pitbull” Freire scored the biggest win of his career Saturday night, defeating former UFC champion Benson Henderson in the main event of Bellator 183.

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With the win, Freire claimed another key win in his pursuit of lightweight champion Brent Primus. Earlier this year, the Brazilian finished Josh Thomson.

In the co-main, Paul Daley knocked out Lorenz Larkin in the second round.

Roy Nelson made his debut with Bellator, besting Javy Ayala, and acclaimed prospect Aaron Pico picked up his first win with a finish of Justin Linn.

Complete results are below:

Patricky “Pitbull” Freire def. Benson Henderson via split decision (28-29, 29-28, 29-28)

Paul Daley def. Lorenz Larkin via KO (strike) at 2:40 off Round 2

Roy Nelson def. Javy Ayala via unanimous decision (30-26, 29-28, 29-28)

Aaron Pico def. Justin Linn via KO (strike) at 3:45 of Round 1

Goiti Yamauchi def. Adam Piccolotti via submission (rear-naked choke) at 3:19 of Round 1

Tony Johnson def. Mike Ortega via KO (strike) at 1:49 of Round 2

Kaytlin Neil def. Brooke Mayo via unanimous decision (29-28, 29-28, 29-28)

Brandon Laroco def. Gaston Bolanos via technical submission (triangle choke) at 2:16 of Round 2

Jaymee Nievara def. Corina Herrera via unanimous decision (30-26, 29-28, 29-27)

Fernando Gonzalez def. Alex Lopez via split decision (29-28, 28-29, 29-28)

Ricardo Vasquez def. Justin Tenedora via submission (guillotine choke) at 2:39 of Round 1

JJ Okanovich def. Luis Jauregui via submission (armbar) at :42 of Round 1

Daniel Gonzalez def. Anthony Castrejon via KO (strike) at 4:03 of Round 1