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Kodai Yamasaki

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

Kodai Yamasaki's profile at Tapology 

Birth Date: 1996-10-30
Last 5: W W L W L
Association: Shooto Gym Blows
Pro Debut Date: 2020-11-29
Pro Record: 10-6-0
Current Ranking:
#1196 Bantamweight
'Big League' Record: 10-6-0
Last 3 Years: 5-4-0
Win Finish %: 70%
Combat Age: 33
Quality Perf. %: 50%
Last Quality Perf.: 2025-12-06
540 Metric: .514
Rating Points: 17
Highest Quarterly Ranking: 10/01/2023

#727 Bantamweight
Last Fight Date: 4/12/2026 [Rizin Fighting Federation]
Last Opponent: [#915 BW] Tomoaki Arimatsu
Opponent's Last 5: W L W L W

Complete Professional MMA Fight History


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

  Opponent Outcome
L Tomoaki Arimatsu TKO (Punches)
Round 1
  Rizin FF - Landmark Vol. 13
Sunday, April 12th 2026
W Jin Wakita KO
Round 1
  DEEP Osaka Impact 2025 5th Round
Saturday, December 6th 2025
L Musashi Yano
#993 Bantamweight 		Decision (Split)
Round 2
  Deep - Osaka Impact 2025 3rd Round
Sunday, September 21st 2025
W Shoui Urushima TKO (Head Kick and Punches)
Round 1
  Deep Osaka Impact 2025 2nd Round
Sunday, June 29th 2025
W Deogratias Lebana TKO (Head Kick and Punches)
Round 1
  Deep - Osaka Impact 2025 1st Round
Sunday, April 6th 2025
W Yuki Nishino
#1097 Bantamweight 		Decision (Split)
Round 2
  Deep - Osaka Impact 2024 3rd Round
Sunday, September 22nd 2024
L Yu Dozono
#1262 Featherweight 		KO (Punch)
Round 1
  Deep - Osaka Impact 2024 2nd Round
Sunday, June 2nd 2024
W Takuma Uchiyama KO (Head Kick)
Round 1
  Deep - Osaka Impact 2024 1st Round
Sunday, March 17th 2024
L Shinsuke Matsubara
#642 Bantamweight 		Submission (Rear-Naked Choke)
Round 2
  Deep - Osaka Impact 2023 3rd Round
Sunday, November 26th 2023
W Hiromu Ueni Submission (Rear-Naked Choke)
Round 2
  Deep - Osaka Impact 2023 2nd Round
Sunday, July 30th 2023
W Ichiki Tanaka Submission (Rear-Naked Choke)
Round 1
  Deep - Osaka Impact 2023 1st Round
Sunday, April 2nd 2023
L Yuuki Tanioka TKO (Punches)
Round 2
  Deep - Osaka Impact 2022 3rd Round
Sunday, August 28th 2022
W Yuki Ueda Decision (Split)
Round 3
  Pancrase x Deep - Osaka Tournament: Yoshir...
Sunday, April 10th 2022
W Yoshitaka Akita Decision (Unanimous)
Round 2
  Deep - Osaka Impact 2021
Sunday, July 18th 2021
W Hayato Tanaka KO (Head Kick)
Round 2
  Pancrase - Osaka
Saturday, April 3rd 2021
L Riku Yoshida Decision (Unanimous)
Round 3
  Deep & Pancrase - Osaka Tournament 2020
Sunday, November 29th 2020
  Opponent Event Outcome
L Tomoaki Arimatsu   Rizin FF - Landmark Vol. 13
Sunday, April 12th 2026 		TKO (Punches)
Round 1
W Jin Wakita   DEEP Osaka Impact 2025 5th Round
Saturday, December 6th 2025 		KO
Round 1
L Musashi Yano
#993 Bantamweight 		  Deep - Osaka Impact 2025 3rd Round
Sunday, September 21st 2025 		Decision (Split)
Round 2
W Shoui Urushima   Deep Osaka Impact 2025 2nd Round
Sunday, June 29th 2025 		TKO (Head Kick and Punches)
Round 1
W Deogratias Lebana   Deep - Osaka Impact 2025 1st Round
Sunday, April 6th 2025 		TKO (Head Kick and Punches)
Round 1
W Yuki Nishino
#1097 Bantamweight 		  Deep - Osaka Impact 2024 3rd Round
Sunday, September 22nd 2024 		Decision (Split)
Round 2
L Yu Dozono
#1262 Featherweight 		  Deep - Osaka Impact 2024 2nd Round
Sunday, June 2nd 2024 		KO (Punch)
Round 1
W Takuma Uchiyama   Deep - Osaka Impact 2024 1st Round
Sunday, March 17th 2024 		KO (Head Kick)
Round 1
L Shinsuke Matsubara
#642 Bantamweight 		  Deep - Osaka Impact 2023 3rd Round
Sunday, November 26th 2023 		Submission (Rear-Naked Choke)
Round 2
W Hiromu Ueni   Deep - Osaka Impact 2023 2nd Round
Sunday, July 30th 2023 		Submission (Rear-Naked Choke)
Round 2
W Ichiki Tanaka   Deep - Osaka Impact 2023 1st Round
Sunday, April 2nd 2023 		Submission (Rear-Naked Choke)
Round 1
L Yuuki Tanioka   Deep - Osaka Impact 2022 3rd Round
Sunday, August 28th 2022 		TKO (Punches)
Round 2
W Yuki Ueda   Pancrase x Deep - Osaka Tournament: Yoshir...
Sunday, April 10th 2022 		Decision (Split)
Round 3
W Yoshitaka Akita   Deep - Osaka Impact 2021
Sunday, July 18th 2021 		Decision (Unanimous)
Round 2
W Hayato Tanaka   Pancrase - Osaka
Saturday, April 3rd 2021 		KO (Head Kick)
Round 2
L Riku Yoshida   Deep & Pancrase - Osaka Tournament 2020
Sunday, November 29th 2020 		Decision (Unanimous)
Round 3

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 445 #1205 Bantamweight 10-6-0
17
04/01/2026 10 #760 Bantamweight 10-5-0
22
01/01/2026 141 #770 Bantamweight 10-5-0
21
10/01/2025 158 #911 Bantamweight 9-5-0
19
07/01/2025 331 #753 Bantamweight 9-4-0
22
04/01/2025 5 #1084 Bantamweight 7-4-0
17
01/01/2025 24 #1079 Bantamweight 7-4-0
17
10/01/2024 NR #1055 Bantamweight 7-4-0
17
04/01/2024 57 #950 Bantamweight 6-3-0
17
01/01/2024 280 #1007 Bantamweight 5-3-0
17
10/01/2023 274 #727 Bantamweight 5-2-0
20
07/01/2023 NR #1001 Bantamweight 4-2-0
17

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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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