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Yosei Shibayama

Issue Date: 8/09/2026 (Official Release: #1036)
  Yosei Shibayama's profile at Sherdog 

Yosei Shibayama's profile at Tapology 

Birth Date: 2003-08-25
Association: G-Face
Pro Debut Date: 2023-08-27
Pro Record: 5-4-0
Win Finish %: 40.0%
Quality Perf. %: 44.4%
Last Ranked: 7/01/2026

#837 Flyweight

Highest Quarterly Ranking: 10/01/2025

#617 Flyweight
Last Loss Date: 8/09/2026
Last Loss: [#408 FLW] Masataka Tensaka
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
L Masataka Tensaka
#612 Flyweight 		Submission (Rear-Naked Choke)
Round 1
  Pancrase - Blood.12
Sunday, August 9th 2026
L Haruaki Motokawa
#802 Flyweight 		Technical Submission (Triangle Choke)
Round 1
  Pancrase - 358
Sunday, November 9th 2025
W Ryosuke Tanaka
#789 Flyweight 		Decision (Unanimous)
Round 3
  Pancrase - Blood.8
Sunday, August 10th 2025
W Katsuyoshi Takahashi Submission (Rear-Naked Choke)
Round 1
  Pancrase - Blood.6
Tuesday, May 6th 2025
W Takeru Fujino Decision (Unanimous)
Round 3
  Pancrase - Blood.5
Tuesday, February 11th 2025
L Omito Kanazawa Submission (Triangle Choke)
Round 1
  Pancrase - Blood.2
Sunday, February 25th 2024
W Masaki Suzuki Decision (Unanimous)
Round 2
  Bloom FC 1 - Bloom Fighting Championship 1
Sunday, November 19th 2023
L Kento Imai
#532 Flyweight 		Submission (Leg Scissor Choke)
Round 3
  Pancrase - Neo-Blood 6: Bantamweight Tourn...
Friday, November 3rd 2023
W Yuki Tashiro Submission (Rear-Naked Choke)
Round 1
  Pancrase - 29th Neo-Blood Tournament Finals
Sunday, August 27th 2023
  Opponent Event Outcome
L Masataka Tensaka
#612 Flyweight 		  Pancrase - Blood.12
Sunday, August 9th 2026 		Submission (Rear-Naked Choke)
Round 1
L Haruaki Motokawa
#802 Flyweight 		  Pancrase - 358
Sunday, November 9th 2025 		Technical Submission (Triangle Choke)
Round 1
W Ryosuke Tanaka
#789 Flyweight 		  Pancrase - Blood.8
Sunday, August 10th 2025 		Decision (Unanimous)
Round 3
W Katsuyoshi Takahashi   Pancrase - Blood.6
Tuesday, May 6th 2025 		Submission (Rear-Naked Choke)
Round 1
W Takeru Fujino   Pancrase - Blood.5
Tuesday, February 11th 2025 		Decision (Unanimous)
Round 3
L Omito Kanazawa   Pancrase - Blood.2
Sunday, February 25th 2024 		Submission (Triangle Choke)
Round 1
W Masaki Suzuki   Bloom FC 1 - Bloom Fighting Championship 1
Sunday, November 19th 2023 		Decision (Unanimous)
Round 2
L Kento Imai
#532 Flyweight 		  Pancrase - Neo-Blood 6: Bantamweight Tourn...
Friday, November 3rd 2023 		Submission (Leg Scissor Choke)
Round 3
W Yuki Tashiro   Pancrase - 29th Neo-Blood Tournament Finals
Sunday, August 27th 2023 		Submission (Rear-Naked Choke)
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 35 #837 Flyweight 5-3-0
15
04/01/2026 34 #802 Flyweight 5-3-0
16
01/01/2026 219 #836 Flyweight 5-3-0
16
10/01/2025 NR #617 Flyweight 5-2-0
19

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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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