Here is a list of Mamalis's best fights. For a list of Mamalis's losses, refer to "Nick Mamalis Losses".
On June 24, 2010 Nick Mamalis faced off against Albert Rios in a bantamweight bout at age 24. He was coming in with a record of 20-5 (16). Mamalis stopped Albert Rios via TKO.
On May 27, 2010 Nick Mamalis faced off against Mark Oshiro in a bantamweight bout at age 23. He was coming in with a record of 19-5 (15). Mamalis stopped Mark Oshiro via submission.
On February 5, 2010 Nick Mamalis fought Zach Wolff in a bantamweight title fight for Wolff's VFC Championship title. Mamalis was 23 years old and with a record of 18-4 (14). Mamalis won the fight via 5-round unanimous decision and is crowned the new bantamweight world champion.