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Fight Matrix

Ji Yoon Gu

Issue Date: 6/21/2026 (Official Release: #1029)
  Ji Yoon Gu's profile at Sherdog 

Ji Yoon Gu's profile at Tapology 

Birth Date: 1992-05-02
Association: Shooto Gym Kobe
Pro Debut Date: 2023-03-26
Pro Record: 4-2-1
Win Finish %: 50.0%
Quality Perf. %: 42.9%
Last Ranked: 4/01/2026

#1517 Featherweight

Highest Quarterly Ranking: 4/01/2024

#1245 Lightweight
Last Loss Date: 5/25/2025
Last Loss: [#1029 FW] Riku Kurumada
Opponent's Last 5: W L W W W

Complete Professional MMA Fight History


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

  Opponent Outcome
D Sota Shiozu Draw
Round 2
  Shooto 2026 Vol.4
Sunday, May 31st 2026
W Shoma Inaba Submission (Rear-Naked Choke)
Round 1
  Shooto - Professional Shooto 2025 Vol. 10
Saturday, November 22nd 2025
L Riku Kurumada
#1020 Featherweight 		Technical Submission (Rear-Naked Choke)
Round 1
  Shooto - Professional Shooto 2025 Vol. 5
Sunday, May 25th 2025
L Jae Hyun Park
#637 Lightweight 		Submission (Arm-Triangle Choke)
Round 3
  ZFN - Z-Fight Night 1
Saturday, June 29th 2024
W Takeshi Saga Decision (Unanimous)
Round 2
  Shooto - Professional Shooto 2024 Vol. 1
Sunday, January 28th 2024
W Youku Goto Decision (Unanimous)
Round 2
  Shooto - Professional Shooto 2023 Vol. 4
Sunday, June 18th 2023
W Tomohiro Hatada KO (Punch)
Round 1
  Shooto / Philoktetes Niigata - Echigo Fuji...
Sunday, March 26th 2023
  Opponent Event Outcome
D Sota Shiozu   Shooto 2026 Vol.4
Sunday, May 31st 2026 		Draw
Round 2
W Shoma Inaba   Shooto - Professional Shooto 2025 Vol. 10
Saturday, November 22nd 2025 		Submission (Rear-Naked Choke)
Round 1
L Riku Kurumada
#1020 Featherweight 		  Shooto - Professional Shooto 2025 Vol. 5
Sunday, May 25th 2025 		Technical Submission (Rear-Naked Choke)
Round 1
L Jae Hyun Park
#637 Lightweight 		  ZFN - Z-Fight Night 1
Saturday, June 29th 2024 		Submission (Arm-Triangle Choke)
Round 3
W Takeshi Saga   Shooto - Professional Shooto 2024 Vol. 1
Sunday, January 28th 2024 		Decision (Unanimous)
Round 2
W Youku Goto   Shooto - Professional Shooto 2023 Vol. 4
Sunday, June 18th 2023 		Decision (Unanimous)
Round 2
W Tomohiro Hatada   Shooto / Philoktetes Niigata - Echigo Fuji...
Sunday, March 26th 2023 		KO (Punch)
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
04/01/2026 23 #1517 Featherweight 4-2-0
15
01/01/2026 NR #1540 Featherweight 4-2-0
15
04/01/2024 NR #1245 Lightweight 3-0-0
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.

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