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Dylan OSullivan

  Dylan OSullivan's profile at Sherdog 

Dylan OSullivan's profile at Tapology 

Association: Kill Cliff FC
Pro Debut Date: 2020-10-10
Pro Record: 6-2-0
Win Finish %: 100.0%
Quality Perf. %: 75.0%
Last Ranked: 7/01/2025

#579 Middleweight

Highest Quarterly Ranking: 4/01/2023

#219 Middleweight
Last Loss Date: 3/28/2025
Last Loss: [#360 MW] Trent Miller
Opponent's Last 5: W L W W L

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

  Opponent Outcome
W R.J. Hayes TKO
Round 1
  SMMA 43 - Showcase MMA 43
Saturday, August 30th 2025
L Trent Miller
#255 Light Heavyweight 		Decision (Split)
Round 3
  BORROKA 2
Friday, March 28th 2025
L Thomas Lane Submission (Rear-Naked Choke)
Round 1
  XFC 50 - Xtreme Fighting Championships
Friday, April 12th 2024
W Clarence Jordan
#425 Middleweight 		TKO (Strikes)
Round 1
  SMMA 26 - Showcase MMA 26: Freedom Reigns
Saturday, June 25th 2022
W Chase Gamble TKO (Strikes)
Round 1
  SMMA 24 - Showcase MMA 24
Saturday, March 26th 2022
W Gregory Sizemore Jr. KO
Round 1
  SMMA 21 - Showcase MMA 21
Friday, September 3rd 2021
W Chris Sorrell KO
Round 1
  Showcase MMA 17
Saturday, March 27th 2021
W Clarence Brown Submission
Round 1
  SMMA 14 - Showcase MMA 14
Saturday, October 10th 2020
  Opponent Event Outcome
W R.J. Hayes   SMMA 43 - Showcase MMA 43
Saturday, August 30th 2025 		TKO
Round 1
L Trent Miller
#255 Light Heavyweight 		  BORROKA 2
Friday, March 28th 2025 		Decision (Split)
Round 3
L Thomas Lane   XFC 50 - Xtreme Fighting Championships
Friday, April 12th 2024 		Submission (Rear-Naked Choke)
Round 1
W Clarence Jordan
#425 Middleweight 		  SMMA 26 - Showcase MMA 26: Freedom Reigns
Saturday, June 25th 2022 		TKO (Strikes)
Round 1
W Chase Gamble   SMMA 24 - Showcase MMA 24
Saturday, March 26th 2022 		TKO (Strikes)
Round 1
W Gregory Sizemore Jr.   SMMA 21 - Showcase MMA 21
Friday, September 3rd 2021 		KO
Round 1
W Chris Sorrell   Showcase MMA 17
Saturday, March 27th 2021 		KO
Round 1
W Clarence Brown   SMMA 14 - Showcase MMA 14
Saturday, October 10th 2020 		Submission
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
07/01/2025 15 #579 Middleweight 5-2-0
18
04/01/2025 13 #564 Middleweight 5-2-0
18
01/01/2025 4 #577 Middleweight 5-1-0
18
10/01/2024 27 #573 Middleweight 5-1-0
18
07/01/2024 NR #546 Middleweight 5-1-0
18
07/01/2023 18 #237 Middleweight 5-0-0
30
04/01/2023 11 #219 Middleweight 5-0-0
30
01/01/2023 2 #230 Middleweight 5-0-0
30
10/01/2022 9 #228 Middleweight 5-0-0
30
07/01/2022 67 #219 Middleweight 5-0-0
30
04/01/2022 97 #286 Middleweight 4-0-0
25
01/01/2022 13 #383 Middleweight 3-0-0
19
10/01/2021 28 #370 Middleweight 3-0-0
19
07/01/2021 12 #398 Middleweight 2-0-0
16
04/01/2021 NR #410 Middleweight 2-0-0
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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