Here is a list of Arroyo's best fights. For a list of Arroyo's losses, refer to "Matt Arroyo Losses".
On December 8, 2007 Matt Arroyo faced off against John Kolosci at age 25. He was coming in with a record of 3-1 (3), and Kolosci was 33 years old and with a record of 8-4 (5). Arroyo stopped John Kolosci via submission.