Herb Dean

UFC referee · United States · active in the loaded archive 2004–2026. 1368 archived assignments, 117 title fights.

Background verified · English Wikipedia ↗

1368Archived assignments

117Title fights

266Five-round

56.4%Stoppage rate

42.1%Decision rate

10:43Avg fight time

Verified background

Herb Dean

Herb Dean is an American professional mixed martial arts referee and former mixed martial artist. Dean has worked events put on by the Ultimate Fighting Championship and ONE Championship promotions, among others. He is frequently called the gold standard for referees in MMA.

Source · English Wikipedia · CC BY-SA 4.0 ↗

Notable assignments

Title fights, five-round bouts and main events in this referee's loaded archive, linked to the matchup pages.

Main event · LightweightMatheus Camilo vs Jai HerbertUFC Fight Night: Allen vs. Duncan · Oct 10, 2026Unanimous Decision · R3 · 5:00 · Jai Herbert won Main event · Women's BantamweightSummer Onley vs Alivia BierleyDana White's Contender Series: Season 10, Week 9 · Oct 6, 2026Unanimous Decision · R3 · 5:00 · Alivia Bierley won Main event · FlyweightRoque Conceição vs Alexander ChavezDana White's Contender Series: Season 10, Week 9 · Oct 6, 2026Submission · R1 · 3:37 · Roque Conceição won Main event · LightweightKing Green vs Esteban RibovicsUFC 332: Silva vs. Wang · Oct 3, 2026KO/TKO · R1 · 4:08 · Esteban Ribovics won Main event · LightweightLoai Abushaar vs George StainesDana White's Contender Series: Season 10, Week 8 · Sep 29, 2026KO/TKO · R1 · 1:01 · George Staines won Main event · FeatherweightIan Escuza vs Luca BorandoDana White's Contender Series: Season 10, Week 8 · Sep 29, 2026KO/TKO · R1 · 0:32 · Ian Escuza won

Recent assignments

The newest referee-tagged results currently present in the PropBetEdge UFC archive.

Oct 10, 2026Matheus Camilo vs Jai HerbertUFC Fight Night: Allen vs. DuncanUnanimous Decision · R3 · 5:00 Oct 10, 2026Allen Frye Jr. vs RJ HarrisUFC Fight Night: Allen vs. DuncanKO/TKO · R1 · 2:59 Oct 10, 2026Julius Walker vs Gerald MeerschaertUFC Fight Night: Allen vs. DuncanKO/TKO · R2 · 3:35 Oct 6, 2026Summer Onley vs Alivia BierleyDana White's Contender Series: Season 10, Week 9Unanimous Decision · R3 · 5:00 Oct 6, 2026Roque Conceição vs Alexander ChavezDana White's Contender Series: Season 10, Week 9Submission · R1 · 3:37 Oct 3, 2026Johnny Walker vs Mick ParkinUFC 332: Silva vs. WangKO/TKO · R1 · 3:35

Profile details

Structured facts from the loaded archive and, where attached, a verified source. Unavailable facts are omitted rather than guessed.

Full name: Herb Dean
Role: mixed martial arts referee
Nationality: United States
Born: September 30, 1970
Also listed as: referee · mixed martial arts fighter · mixed martial arts referee
Documented tenure: Documented UFC assignments 2004–2026
Status: Active in the loaded archive
Archive tenure: 2004–2026 · first loaded bout Apr 2, 2004
Most recent bout: Oct 10, 2026
Archived assignments: 1368 in the loaded archive — not a career total; historical coverage is still being backfilled
Title fights: 117
Outcomes: 499 KO/TKO · 272 submissions · 576 decisions (121 split) · 21 NC/draws
Average stoppage: 6:14
Background source: English Wikipedia ↗ · verified Sep 7, 2026
Photo: MMAnytt · CC BY 3.0 · via Wikimedia Commons · file page ↗
Reference: English Wikipedia ↗

Related events

Cards this referee worked in the loaded archive.

Oct 2026UFC Fight Night: Allen vs. DuncanMeta APEX · Las Vegas · USA Oct 2026Dana White's Contender Series: Season 10, Week 9Meta APEX · Las Vegas · USA Oct 2026UFC 332: Silva vs. WangDelta Center · Salt Lake City · USA Sep 2026Dana White's Contender Series: Season 10, Week 8Meta APEX · Las Vegas · USA Sep 2026UFC Fight Night: Rosas Jr. vs. BarcelosMeta APEX · Las Vegas · USA Sep 2026Dana White's Contender Series: Season 10, Week 7Meta APEX · Las Vegas · USA Sep 2026UFC 331: Van vs. Pantoja 2crypto.com Arena · Los Angeles · USA Sep 2026UFC Fight Night: Hooker vs. ParnasseAccor Arena · Paris · France

Assignment archive

Up to 80 recent loaded UFC bouts. Result source links remain attached at row level.

Date	Event	Fight	Result	Round / time	Source
Oct 10, 2026	UFC Fight Night: Allen vs. Duncan	Matheus Camilo vs Jai Herbert	Unanimous Decision Jai Herbert won	R3 · 5:00	Official source ↗
Oct 10, 2026	UFC Fight Night: Allen vs. Duncan	Allen Frye Jr. vs RJ Harris	KO/TKO Allen Frye Jr. won	R1 · 2:59	Official source ↗
Oct 10, 2026	UFC Fight Night: Allen vs. Duncan	Julius Walker vs Gerald Meerschaert	KO/TKO Julius Walker won	R2 · 3:35	Official source ↗
Oct 6, 2026	Dana White's Contender Series: Season 10, Week 9	Summer Onley vs Alivia Bierley	Unanimous Decision Alivia Bierley won

Important: “fight impact” here means historical context, not causation. A referee does not choose the matchup, fighter styles, skill gap or scheduled length, so finish and decision rates must be interpreted with sample size and those confounders in mind.