Strikeforce Challengers 19 took place on Friday night in Las Vegas and aired on Showtime, featuring Lorenz Larkin topping Nick Rossborough in the main event, Shawn Jordan upsetting Lavar Johnson, Ryan Couture edging Maka Watson, and Jason High beating Todd Moore.

The official Strikeforce Challengers 19 results were:

MAIN CARD

• Lorenz Larkin def. Nick Rossborough via unanimous decision (30-27, 30-27, 29-28)
• Shawn Jordan def. Lavar Johnson via submission (keylock) – Round 2, 3:08
• Ryan Couture def. Maka Watson via majority decision (28-28, 29-28, 29-28)
• Jason High def. Todd Moore via unanimous decision (30-27, 30-27, 30-27)
• Brian Melancon def. Felipe Portela by unanimous decision (30-27, 29-28, 29-28)

PRELIMINARY CARD

• James Terry def. Magno Almeida via KO (punches) – Round 1, 3:27
• Bobby Green def. Charon Spain via submission (arm-triangle) – Round 2, 2:54
• Chris Spang def. Joe Ray via unanimous decision (29-28, 29-28, 29-28)
• Quinn Mulhern def. Danny Davis via submission (arm-triangle) – Round 3, 4:08

Pictured: Jason High