Sorted alphabetically by last name · 2715 fighters
| Name | Nickname | |
|---|---|---|
| JG | Jason Gonzalez | "Nicoya" |
| JH | Jason High | "The Kansas City Bandit" |
| JK | Jason Knight | "The Kid" |
| JL | Jason Lambert | "The Punisher" |
| JM | Jason MacDonald | "The Athlete" |
| JM | Jason Miller | "Mayhem" |
| JN | Jason Novelli | "Flipside" |
| JR | Jason Reinhardt | |
| JS | Jason Saggo | |
| JT | Jason Tan |