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Isaac Butler

Issue Date: 5/10/2026 (Official Release: #1023)
  Isaac Butler's profile at Sherdog 

Isaac Butler's profile at Tapology 

Rank State: Oregon
Birth Date: 2000-04-26
Last 5: L L W W W
Association: American Top Team Portland
Pro Debut Date: 2024-07-27
Pro Record: 4-2-0
Current Ranking:
#1149 Welterweight
'Big League' Record: 2-2-0
Last 3 Years: 4-2-0
Win Finish %: 75%
Combat Age: 27
Quality Perf. %: 66.7%
Last Quality Perf.: 2026-02-28
540 Metric: .600
Rating Points: 16
Highest Quarterly Ranking: 10/01/2022

#969 Welterweight
Last Fight Date: 2/28/2026 [COGA Grand Prix]
Last Opponent: [NR] Cayson Hammer
Last Loss Date: 2/08/2025
Last Loss: [#1312 LW] Trever Devestern
Opponent's Last 5: - L W W W

Complete Professional MMA Fight History


Fighter rankings represent most recent generated quarterly rating prior to the fight

  Opponent Outcome
W Cayson Hammer
#1097 Welterweight 		Decision (Split)
Round 3
  COGA 91 - Combat Games
Saturday, February 28th 2026
W Josh Richmond TKO (Retirement)
Round 1
  KOTC - Class Action
Thursday, September 25th 2025
W R.J. Hoyt Submission (Arm-Triangle Choke)
Round 2
  COGA 86 - Battle at the Bay
Saturday, May 17th 2025
L Trever Devestern Decision (Unanimous)
Round 3
  KOTC - Super Brawl
Saturday, February 8th 2025
L Andreu Mendoza Submission (Guillotine Choke)
Round 3
  KOTC - Attack Point
Saturday, September 7th 2024
W Xavier Pereira TKO
Round 3
  KOTC - Twilight
Saturday, July 27th 2024
  Opponent Event Outcome
W Cayson Hammer
#1097 Welterweight 		  COGA 91 - Combat Games
Saturday, February 28th 2026 		Decision (Split)
Round 3
W Josh Richmond   KOTC - Class Action
Thursday, September 25th 2025 		TKO (Retirement)
Round 1
W R.J. Hoyt   COGA 86 - Battle at the Bay
Saturday, May 17th 2025 		Submission (Arm-Triangle Choke)
Round 2
L Trever Devestern   KOTC - Super Brawl
Saturday, February 8th 2025 		Decision (Unanimous)
Round 3
L Andreu Mendoza   KOTC - Attack Point
Saturday, September 7th 2024 		Submission (Guillotine Choke)
Round 3
W Xavier Pereira   KOTC - Twilight
Saturday, July 27th 2024 		TKO
Round 3

Quarterly Generated Historical Rankings


Rating bar represents the fighter's standing relative to the top of the division at the time
Date ↑ ↓ Rank Record Points
04/01/2026 NR #1020 Welterweight 5-2-0
17
10/01/2023 14 #981 Welterweight 1-0-0
15
07/01/2023 12 #995 Welterweight 1-0-0
15
04/01/2023 16 #983 Welterweight 1-0-0
15
01/01/2023 30 #999 Welterweight 1-0-0
15
10/01/2022 NR #969 Welterweight 1-0-0
15

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A fighter's rank (US) state is assigned based on the state that the fighter most frequently fought in professionally, within the past three years. If there is a tie, the most recent state is used. The Win-Loss-Draw record for the fighter in the "Big Leagues". The Big Leagues refer to the top organizations based on a statistical analysis we performed. Some organizations were counted as one, due to mergers, etc. A quality performance is a fight in which the fighter fought an acceptable opponent, and substantiated their current rating (at the time) based on the outcome. At it's most basic level, one can equate "combat age" to "dog years" in that it will mirror the basic human lifecycle. With this computation, we expect fighters to hit their respective "peak" in the years that your typical adult "peaks" in life, somewhere between 25 and 40. We will expect most fighters to start their descent at some point in their 40s and be far removed from their peak by 60. This is an experimental metric that attempts to reflect a fighter's recent opposition quality. The metric goes back 1,080 days, and looks at all the fighter's opponents' W-L-D records within a window of 540 days before, and 540 days after their respective bout(s) with the fighter. All of the records are added up and the cumulative win percentage is presented by this metric in a "strength of schedule" format. These ranking sets have been generated by a recent version of the software, using recent data and will not match previously published issues of the rankings, especially since a majority of these generated sets are for dates much earlier than the site’s inception.

Writer's Game - Public Relations Agency

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