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Referee dossier
Jason Herzog
550 fights
Fights
550
Recorded assignments
Finish rate
43.3%
Stoppages over total
Avg round ended
1.5
When fight stopped
R1 stoppages
132
Stopped in round 1
No contests
6
Result overturned
Recent fights
Brandon Royval vs Lone'er Kavanagh
UFC - UFC 329: McGregor vs. Holloway 2
Jul 11, 2026
ResultSubmission 3:40
R3
Tracy Cortez vs Wang Cong
UFC - UFC 329: McGregor vs. Holloway 2
Jul 11, 2026
ResultUnanimous Decision 5:00
R3
Alessandro Costa vs Cody Durden
UFC - UFC 329: McGregor vs. Holloway 2
Jul 11, 2026
ResultSubmission 2:19
R2