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Shea ONeill

  Shea ONeill's profile at Sherdog 

Shea ONeill's profile at Tapology 

Rank State: Montana
Age: 32
Last 5: W W W L W
Association: Montana Mixed Martial Arts
Pro Debut Date: 2016-05-14
Pro Record: 4-1-0
Current Ranking:
#611 Featherweight
'Big League' Record: 0-0-0
Last 3 Years: 2-1-0
Win Finish %: 100%
Combat Age: 31
Quality Perf. %: 80%
Last Quality Perf.: 2025-06-28
540 Metric: .769
Rating Points: 27
Highest Quarterly Ranking: 10/01/2025

#605 Featherweight
Last Fight Date: 6/28/2025 [Fusion Fight League]
Last Opponent: [#669 FW] Daniel McElhaney
Opponent's Last 5: W L L W W
Last Loss Date: 1/18/2025
Last Loss: [#233 LW] Majdeddine Ayadi
Opponent's Last 5: W W W W W

Complete Professional MMA Fight History
Fighter rankings represent most recent generated quarterly rating prior to the fight

  Opponent Outcome
W Daniel McElhaney
#721 Bantamweight 		Submission (Rear-Naked Choke)
Round 1
  Fusion Fight League
Saturday, June 28th 2025
L Majdeddine Ayadi
#388 Welterweight 		Submission (Rear-Naked Choke)
Round 2
  Fusion Fight League - ONeill vs. Ayadi
Saturday, January 18th 2025
W Daeri Alderman
#875 Welterweight 		Submission (Rear-Naked Choke)
Round 1
  Fusion Fight League - Great Falls
Saturday, September 21st 2024
W Baron Muller TKO (Punches)
Round 1
  FightForce - Bozeman Impact 13
Saturday, October 15th 2016
W Reynaldo Matias TKO (Punches)
Round 1
  FightForce - Bozeman Impact 12
Saturday, May 14th 2016
  Opponent Event Outcome
W Daniel McElhaney
#721 Bantamweight 		  Fusion Fight League
Saturday, June 28th 2025 		Submission (Rear-Naked Choke)
Round 1
L Majdeddine Ayadi
#388 Welterweight 		  Fusion Fight League - ONeill vs. Ayadi
Saturday, January 18th 2025 		Submission (Rear-Naked Choke)
Round 2
W Daeri Alderman
#875 Welterweight 		  Fusion Fight League - Great Falls
Saturday, September 21st 2024 		Submission (Rear-Naked Choke)
Round 1
W Baron Muller   FightForce - Bozeman Impact 13
Saturday, October 15th 2016 		TKO (Punches)
Round 1
W Reynaldo Matias   FightForce - Bozeman Impact 12
Saturday, May 14th 2016 		TKO (Punches)
Round 1

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
10/01/2025 12 #605 Featherweight 4-1-0
27
07/01/2025 NR #617 Featherweight 4-1-0
27
04/01/2025 NR #1053 Lightweight 3-1-0
19
01/01/2025 30 #724 Featherweight 3-0-0
24
10/01/2024 NR #694 Featherweight 3-0-0
24
01/01/2018 44 #957 Featherweight 2-0-0
18
10/01/2017 25 #913 Featherweight 2-0-0
18
07/01/2017 53 #938 Featherweight 2-0-0
18
04/01/2017 2 #885 Featherweight 2-0-0
18
01/01/2017 224 #887 Featherweight 2-0-0
18
10/01/2016 38 #1111 Featherweight 1-0-0
16
07/01/2016 NR #1073 Featherweight 1-0-0
16


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.

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