Leon Roberts

UFC referee · active in the loaded archive 2008–2020. 194 archived assignments, 2 title fights.

194Archived assignments

2Title fights

18Five-round

46.4%Stoppage rate

53.1%Decision rate

10:55Avg fight time

What to know

Near the archive baseline

Leon Roberts's 46.4% stoppage rate sits close to the 53% archive baseline. The referee sample does not create a strong finish-versus-decision signal on its own.

46.4% of loaded assignments ended by stoppage (64 KO/TKO, 26 submissions) against a 53% archive baseline.
53.1% reached the judges; 16 of 103 decisions were split (15.5%).
Average elapsed time to a stoppage in this sample: 5:35 of fight time.
2 championship assignments and 18 five-round bouts in the loaded archive.

Descriptive history from the loaded archive. A referee does not choose the matchup, styles or scheduled length, so finish and decision rates are context, not a causal signal.

Archive biography

Leon Roberts

Leon Roberts appears as the assigned referee in 194 archived UFC bouts currently loaded by PropBetEdge (historical coverage is still being backfilled, so this is not a career total) across 2008–2020. This profile treats officiating as context, not destiny: the rates below describe what happened in that historical sample and do not prove that the referee caused a finish, decision, pace change or judging outcome.

No externally sourced biography passed the identity check for this official, so the summary above is generated from our own archive rows only.

Notable assignments

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

Title fight · BantamweightPetr Yan vs Jose AldoUFC 251: Usman vs. Masvidal · Jul 11, 2020KO/TKO · R5 · 3:24 · Petr Yan won Title fight · Women's StrawweightZhang Weili vs Jessica AndradeUFC Fight Night: Andrade vs. Zhang · Aug 31, 2019KO/TKO · R1 · 0:42 · Zhang Weili won Five rounds · WelterweightLeon Edwards vs Donald CerroneUFC Fight Night: Cowboy vs. Edwards · Jun 23, 2018Unanimous Decision · R5 · 5:00 · Leon Edwards won Five rounds · WelterweightKamaru Usman vs Demian MaiaUFC Fight Night: Maia vs. Usman · May 19, 2018Unanimous Decision · R5 · 5:00 · Kamaru Usman won Five rounds · HeavyweightFabricio Werdum vs Marcin TyburaUFC Fight Night: Werdum vs. Tybura · Nov 18, 2017Unanimous Decision · R5 · 5:00 · Fabricio Werdum won Five rounds · Light HeavyweightOvince Saint Preux vs Yushin OkamiUFC Fight Night: Saint Preux vs. Okami · Sep 22, 2017Submission · R1 · 1:50 · Ovince Saint Preux won

Recent assignments

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

Jul 11, 2020Petr Yan vs Jose AldoUFC 251: Usman vs. MasvidalKO/TKO · R5 · 3:24 Jul 11, 2020Raulian Paiva vs Zhalgas ZhumagulovUFC 251: Usman vs. MasvidalUnanimous Decision · R3 · 5:00 Jul 11, 2020Makwan Amirkhani vs Danny HenryUFC 251: Usman vs. MasvidalSubmission · R1 · 3:15 Nov 9, 2019Roosevelt Roberts vs Alexander YakovlevUFC Fight Night: Zabit vs. KattarUnanimous Decision · R3 · 5:00 Nov 9, 2019Alexander Volkov vs Greg HardyUFC Fight Night: Zabit vs. KattarUnanimous Decision · R3 · 5:00 Nov 9, 2019Shamil Gamzatov vs Klidson AbreuUFC Fight Night: Zabit vs. KattarSplit Decision · R3 · 5:00

Profile details

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

Full name: Leon Roberts
Archive tenure: 2008–2020 · first loaded bout Oct 18, 2008
Most recent bout: Jul 11, 2020
Archived assignments: 194 in the loaded archive — not a career total; historical coverage is still being backfilled
Title fights: 2
Outcomes: 64 KO/TKO · 26 submissions · 103 decisions (16 split) · 1 NC/draws
Average stoppage: 5:35

Related events

Cards this referee worked in the loaded archive.

Jul 2020UFC 251: Usman vs. MasvidalAbu Dhabi · United Arab Emirates Nov 2019UFC Fight Night: Zabit vs. KattarMoscow · Russia Oct 2019UFC Fight Night: Maia vs. AskrenKallang · Singapore Sep 2019UFC Fight Night: Hermansson vs. CannonierCopenhagen · Denmark Aug 2019UFC Fight Night: Andrade vs. ZhangShenzhen · China Jun 2019UFC Fight Night: Gustafsson vs. SmithStockholm · Sweden Apr 2019UFC Fight Night: Overeem vs. OleinikSaint Petersburg · Russia Mar 2019UFC Fight Night: Till vs. MasvidalLondon · United Kingdom

Assignment archive

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

Date	Event	Fight	Result	Round / time	Source
Jul 11, 2020	UFC 251: Usman vs. Masvidal	Petr Yan vs Jose AldoTitle	KO/TKO Petr Yan won	R5 · 3:24	UFC Stats ↗
Jul 11, 2020	UFC 251: Usman vs. Masvidal	Raulian Paiva vs Zhalgas Zhumagulov	Unanimous Decision Raulian Paiva won	R3 · 5:00	UFC Stats ↗
Jul 11, 2020	UFC 251: Usman vs. Masvidal	Makwan Amirkhani vs Danny Henry	Submission Makwan Amirkhani won	R1 · 3:15	UFC Stats ↗
Nov 9, 2019	UFC Fight Night: Zabit vs. Kattar	Roosevelt Roberts vs Alexander Yakovlev	Unanimous Decision Roosevelt Roberts won	R3 · 5:00	UFC Stats ↗
Nov 9, 2019

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.