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Fight Matrix

Joo Sang Yoo

Issue Date: 9/20/2026 (Official Release: #1042)
  Joo Sang Yoo's profile at Sherdog 

Joo Sang Yoo's profile at Tapology 

Rank State: California
Birth Date: 1994-01-21
Last 5: W W W L L
Association: Tiger Gym
Pro Debut Date: 2021-05-31
Pro Record: 9-2-0
Current Ranking:
#230 Featherweight
'Big League' Record: 1-2-0
Last 3 Years: 3-2-0
Win Finish %: 55.6%
Combat Age: 33
Quality Perf. %: 90.9%
Last Quality Perf.: 2026-09-19
540 Metric: .500
Rating Points: 55
Highest Quarterly Ranking: 7/01/2025

#116 Featherweight
Last Fight Date: 9/19/2026 [UFC]
Last Opponent: [#160 FW] Michael Aswell
Opponent's Last 5: L W L L W
UFC Record: 1-2-0
Octagon Time: 0:20:49
UFC Debut: 2025-06-07
Last UFC Fight: 2026-09-19

Complete Professional MMA Fight History


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

  Opponent Outcome
L Michael Aswell
#193 Featherweight 		Decision (Split)
Round 3
  UFC 331 - Van vs. Pantoja 2
Saturday, September 19th 2026
L Daniel Santos
#83 Featherweight 		TKO (Punches)
Round 2
  UFC 320 - Ankalaev vs. Pereira 2
Saturday, October 4th 2025
W Jeka Saragih
#234 Featherweight 		KO (Punch)
Round 1
  UFC 316 - Dvalishvili vs. OMalley 2
Saturday, June 7th 2025
W Masuto Kawana
#266 Featherweight 		KO (Punches)
Round 1
  ZFN - Z-Fight Night 2
Saturday, December 14th 2024
W Reinaldo Ekson
#352 Featherweight 		Decision (Unanimous)
Round 3
  ZFN - Z-Fight Night 1
Saturday, June 29th 2024
W Takuya Kuramoto
#1034 Featherweight 		TKO (Punches)
Round 1
  AFC 27 / Heat 52 - Angels Fighting Champio...
Saturday, August 19th 2023
W Shunichi Shimizu
#756 Bantamweight 		Decision (Unanimous)
Round 3
  AFC 22 - Angels Fighting Championship 22
Friday, December 30th 2022
W Gustavo Wurlitzer Decision (Unanimous)
Round 2
  AFC 20 - Angels Fighting Championship 20: ...
Friday, September 30th 2022
W Doo Seok Oh
#1030 Featherweight 		Decision (Unanimous)
Round 3
  Brave CF 58 - Brave Combat Federation 58
Saturday, April 30th 2022
W Jun Hee Jung
#923 Lightweight 		Submission (Rear-Naked Choke)
Round 2
  AFC 17 - Angels Fighting Championship 17
Friday, October 15th 2021
W Baek Ho Jang TKO (Strikes)
Round 1
  AFC 16 - Angels Fighting Championship 16
Monday, May 31st 2021
  Opponent Event Outcome
L Michael Aswell
#193 Featherweight 		  UFC 331 - Van vs. Pantoja 2
Saturday, September 19th 2026 		Decision (Split)
Round 3
L Daniel Santos
#83 Featherweight 		  UFC 320 - Ankalaev vs. Pereira 2
Saturday, October 4th 2025 		TKO (Punches)
Round 2
W Jeka Saragih
#234 Featherweight 		  UFC 316 - Dvalishvili vs. OMalley 2
Saturday, June 7th 2025 		KO (Punch)
Round 1
W Masuto Kawana
#266 Featherweight 		  ZFN - Z-Fight Night 2
Saturday, December 14th 2024 		KO (Punches)
Round 1
W Reinaldo Ekson
#352 Featherweight 		  ZFN - Z-Fight Night 1
Saturday, June 29th 2024 		Decision (Unanimous)
Round 3
W Takuya Kuramoto
#1034 Featherweight 		  AFC 27 / Heat 52 - Angels Fighting Champio...
Saturday, August 19th 2023 		TKO (Punches)
Round 1
W Shunichi Shimizu
#756 Bantamweight 		  AFC 22 - Angels Fighting Championship 22
Friday, December 30th 2022 		Decision (Unanimous)
Round 3
W Gustavo Wurlitzer   AFC 20 - Angels Fighting Championship 20: ...
Friday, September 30th 2022 		Decision (Unanimous)
Round 2
W Doo Seok Oh
#1030 Featherweight 		  Brave CF 58 - Brave Combat Federation 58
Saturday, April 30th 2022 		Decision (Unanimous)
Round 3
W Jun Hee Jung
#923 Lightweight 		  AFC 17 - Angels Fighting Championship 17
Friday, October 15th 2021 		Submission (Rear-Naked Choke)
Round 2
W Baek Ho Jang   AFC 16 - Angels Fighting Championship 16
Monday, May 31st 2021 		TKO (Strikes)
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
07/01/2026 9 #466 Lightweight 9-1-0
35
04/01/2026 16 #457 Lightweight 9-1-0
36
01/01/2026 NR #441 Lightweight 9-1-0
36
10/01/2025 3 #119 Featherweight 9-0-0
81
07/01/2025 48 #116 Featherweight 9-0-0
81
04/01/2025 1 #164 Featherweight 8-0-0
64
01/01/2025 60 #163 Featherweight 8-0-0
64
10/01/2024 7 #223 Featherweight 7-0-0
49
07/01/2024 79 #216 Featherweight 7-0-0
49
04/01/2024 8 #295 Featherweight 6-0-0
40
01/01/2024 3 #303 Featherweight 6-0-0
40
10/01/2023 36 #300 Featherweight 6-0-0
40
07/01/2023 3 #336 Featherweight 5-0-0
36
04/01/2023 17 #339 Featherweight 5-0-0
36
01/01/2023 NR #322 Featherweight 5-0-0
36
10/01/2022 NR #496 Lightweight 4-0-0
29
07/01/2022 86 #476 Featherweight 3-0-0
27
04/01/2022 16 #562 Featherweight 2-0-0
24
01/01/2022 NR #546 Featherweight 2-0-0
24
10/01/2021 152 #1048 Lightweight 1-0-0
16
07/01/2021 NR #896 Lightweight 1-0-0
16

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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.

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