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Isao Kobayashi

  Isao Kobayashi's profile at Sherdog 

Isao Kobayashi's profile at Tapology 

Rank State: Illinois
Age: 37
Last 5: W W W L L
Association: Never Quit
Pro Debut Date: 2008-04-26
Pro Record: 27-7-2
Current Ranking:
#347 Featherweight
'Big League' Record: 23-7-2
Last 3 Years: 0-2-0
Win Finish %: 48.1%
Combat Age: 47
Quality Perf. %: 66.7%
Last Quality Perf.: 2023-11-17
540 Metric: 1.00
Rating Points: 40
Highest Quarterly Ranking: 10/01/2015

#37 Featherweight
Last Fight Date: 7/27/2025 [Pancrase]
Last Opponent: [#181 FW] Kalybek Arzykul Uulu
Opponent's Last 5: L W W W W
Next Fight: Pancrase - 360
Next Opponent: [#484 LW] Yusuke Kasuya
Opponent's Last 5: W L L W L

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

  Opponent Outcome
L Kalybek Arzykul Uulu
#229 Bantamweight 		KO (Punch)
Round 1
  Pancrase - 355
Sunday, July 27th 2025
L Yves Landu
#73 Featherweight 		Decision (Split)
Round 3
  Bellator 301 - Amosov vs. Jackson
Friday, November 17th 2023
W Taichi Nakajima
#217 Lightweight 		Decision (Unanimous)
Round 5
  Pancrase - 321
Sunday, May 30th 2021
W Akira Okada
#440 Welterweight 		Decision (Unanimous)
Round 3
  Pancrase - 316
Friday, July 24th 2020
W Kyle Aguon
#150 Featherweight 		Decision (Split)
Round 5
  Pancrase 309
Sunday, October 20th 2019
W Nazareno Malegarie
#58 Featherweight 		Decision (Unanimous)
Round 5
  Pancrase 305
Sunday, May 26th 2019
W Koyomi Matsushima
#136 Featherweight 		DQ (Knee to Head of Grounded Fighter)
Round 1
  Pancrase 295 - Sunabe vs. Murofushi
Sunday, April 15th 2018
W Yusuke Kasuya
#406 Featherweight 		Decision (Unanimous)
Round 3
  Pancrase - 292
Sunday, December 10th 2017
L Kyle Aguon
#264 Featherweight 		Decision (Split)
Round 3
  Pancrase - 289
Sunday, August 20th 2017
W Marko Burusic
#744 Featherweight 		TKO (Punches)
Round 2
  Pancrase 286
Sunday, April 23rd 2017
W Hiroyuki Takaya
#284 Featherweight 		Decision (Unanimous)
Round 3
  Pancrase - 283
Sunday, December 18th 2016
W Yutaka Saito
#88 Featherweight 		Decision (Split)
Round 5
  Vale Tudo Japan - VTJ 8th
Monday, September 19th 2016
L Justin Lawrence
#81 Featherweight 		TKO (Punches)
Round 2
  Bellator 157 - Dynamite 2
Friday, June 24th 2016
L Goiti Yamauchi
#57 Featherweight 		Submission (Rear Naked Choke)
Round 3
  Bellator 144 - Halsey vs. Carvalho
Friday, October 23rd 2015
W Will Chope
#133 Featherweight 		Decision (Unanimous)
Round 3
  Pancrase - 269
Sunday, August 9th 2015
W Marlon Sandro
#45 Featherweight 		Decision (Split)
Round 3
  Pancrase - 266
Sunday, April 26th 2015
L Kazunori Yokota
#81 Featherweight 		Decision (Unanimous)
Round 3
  DEEP DREAM Impact: Omisoka Special
Wednesday, December 31st 2014
W Takeshi Inoue
#320 Featherweight 		Decision (Unanimous)
Round 3
  Vale Tudo Japan - VTJ 6th
Saturday, October 4th 2014
W Kuniyoshi Hironaka
#62 Lightweight 		TKO (Punch and Soccer Kick)
Round 3
  Pancrase - 257
Sunday, March 30th 2014
W Yoshiaki Takahashi
#384 Lightweight 		Decision (Majority)
Round 3
  Pancrase 252 - 20th Anniversary
Sunday, September 29th 2013
D Jorge Patino
#96 Lightweight 		Draw
Round 3
  Pancrase - 246
Sunday, March 17th 2013
W Kenichiro Togashi
#283 Lightweight 		KO (Punches)
Round 1
  Pancrase Progress Tour 14
Saturday, December 1st 2012
W Tatsunori Tanaka
#674 Lightweight 		Submission (Straight Armbar)
Round 1
  Pancrase Progress Tour 10
Saturday, September 1st 2012
W Koji Oishi
#146 Lightweight 		Decision (Unanimous)
Round 3
  Pancrase Progress Tour 4
Sunday, April 1st 2012
W Kazuki Tokudome
#124 Lightweight 		TKO (Punches)
Round 1
  Pancrase - Impressive Tour 13
Saturday, December 3rd 2011
W Tomoyoshi Iwamiya
#416 Lightweight 		Decision (Unanimous)
Round 3
  Pancrase - Impressive Tour 8
Sunday, August 7th 2011
W Yukinari Tamura
#172 Lightweight 		Decision (Split)
Round 2
  Pancrase - Impressive Tour 4
Tuesday, May 3rd 2011
W Artur Umakhanov Technical Submission (Guillotine Choke)
Round 1
  Pancrase - Passion Tour 10
Wednesday, November 3rd 2010
D Tomoyoshi Iwamiya
#371 Lightweight 		Draw
Round 2
  Pancrase - Passion Tour 6
Sunday, July 4th 2010
L Koji Oishi
#122 Lightweight 		Decision (Unanimous)
Round 3
  Pancrase - Passion Tour 3
Sunday, April 4th 2010
W Hiroki Aoki
#266 Lightweight 		TKO (Punches)
Round 1
  Pancrase - Passion Tour 1
Sunday, February 7th 2010
W Hiroki Aoki
#341 Lightweight 		DQ (Groin Strike)
Round 1
  Pancrase - Changing Tour 6
Sunday, October 25th 2009
W Hirotaka Tomiyama TKO (Punches)
Round 1
  Pancrase - Changing Tour 4
Saturday, August 8th 2009
W Koji Nakamura KO (Punch)
Round 2
  Pancrase - Changing Tour 3
Sunday, June 7th 2009
W Yoichi Kono TKO (Punches)
Round 1
  Tribelate - vol. 23
Saturday, April 25th 2009
W Dae Yeon Lee TKO (Punches)
Round 1
  Tribelate - vol. 17
Saturday, April 26th 2008
  Opponent Event Outcome
L Kalybek Arzykul Uulu
#229 Bantamweight 		  Pancrase - 355
Sunday, July 27th 2025 		KO (Punch)
Round 1
L Yves Landu
#73 Featherweight 		  Bellator 301 - Amosov vs. Jackson
Friday, November 17th 2023 		Decision (Split)
Round 3
W Taichi Nakajima
#217 Lightweight 		  Pancrase - 321
Sunday, May 30th 2021 		Decision (Unanimous)
Round 5
W Akira Okada
#440 Welterweight 		  Pancrase - 316
Friday, July 24th 2020 		Decision (Unanimous)
Round 3
W Kyle Aguon
#150 Featherweight 		  Pancrase 309
Sunday, October 20th 2019 		Decision (Split)
Round 5
W Nazareno Malegarie
#58 Featherweight 		  Pancrase 305
Sunday, May 26th 2019 		Decision (Unanimous)
Round 5
W Koyomi Matsushima
#136 Featherweight 		  Pancrase 295 - Sunabe vs. Murofushi
Sunday, April 15th 2018 		DQ (Knee to Head of Grounded Fighter)
Round 1
W Yusuke Kasuya
#406 Featherweight 		  Pancrase - 292
Sunday, December 10th 2017 		Decision (Unanimous)
Round 3
L Kyle Aguon
#264 Featherweight 		  Pancrase - 289
Sunday, August 20th 2017 		Decision (Split)
Round 3
W Marko Burusic
#744 Featherweight 		  Pancrase 286
Sunday, April 23rd 2017 		TKO (Punches)
Round 2
W Hiroyuki Takaya
#284 Featherweight 		  Pancrase - 283
Sunday, December 18th 2016 		Decision (Unanimous)
Round 3
W Yutaka Saito
#88 Featherweight 		  Vale Tudo Japan - VTJ 8th
Monday, September 19th 2016 		Decision (Split)
Round 5
L Justin Lawrence
#81 Featherweight 		  Bellator 157 - Dynamite 2
Friday, June 24th 2016 		TKO (Punches)
Round 2
L Goiti Yamauchi
#57 Featherweight 		  Bellator 144 - Halsey vs. Carvalho
Friday, October 23rd 2015 		Submission (Rear Naked Choke)
Round 3
W Will Chope
#133 Featherweight 		  Pancrase - 269
Sunday, August 9th 2015 		Decision (Unanimous)
Round 3
W Marlon Sandro
#45 Featherweight 		  Pancrase - 266
Sunday, April 26th 2015 		Decision (Split)
Round 3
L Kazunori Yokota
#81 Featherweight 		  DEEP DREAM Impact: Omisoka Special
Wednesday, December 31st 2014 		Decision (Unanimous)
Round 3
W Takeshi Inoue
#320 Featherweight 		  Vale Tudo Japan - VTJ 6th
Saturday, October 4th 2014 		Decision (Unanimous)
Round 3
W Kuniyoshi Hironaka
#62 Lightweight 		  Pancrase - 257
Sunday, March 30th 2014 		TKO (Punch and Soccer Kick)
Round 3
W Yoshiaki Takahashi
#384 Lightweight 		  Pancrase 252 - 20th Anniversary
Sunday, September 29th 2013 		Decision (Majority)
Round 3
D Jorge Patino
#96 Lightweight 		  Pancrase - 246
Sunday, March 17th 2013 		Draw
Round 3
W Kenichiro Togashi
#283 Lightweight 		  Pancrase Progress Tour 14
Saturday, December 1st 2012 		KO (Punches)
Round 1
W Tatsunori Tanaka
#674 Lightweight 		  Pancrase Progress Tour 10
Saturday, September 1st 2012 		Submission (Straight Armbar)
Round 1
W Koji Oishi
#146 Lightweight 		  Pancrase Progress Tour 4
Sunday, April 1st 2012 		Decision (Unanimous)
Round 3
W Kazuki Tokudome
#124 Lightweight 		  Pancrase - Impressive Tour 13
Saturday, December 3rd 2011 		TKO (Punches)
Round 1
W Tomoyoshi Iwamiya
#416 Lightweight 		  Pancrase - Impressive Tour 8
Sunday, August 7th 2011 		Decision (Unanimous)
Round 3
W Yukinari Tamura
#172 Lightweight 		  Pancrase - Impressive Tour 4
Tuesday, May 3rd 2011 		Decision (Split)
Round 2
W Artur Umakhanov   Pancrase - Passion Tour 10
Wednesday, November 3rd 2010 		Technical Submission (Guillotine Choke)
Round 1
D Tomoyoshi Iwamiya
#371 Lightweight 		  Pancrase - Passion Tour 6
Sunday, July 4th 2010 		Draw
Round 2
L Koji Oishi
#122 Lightweight 		  Pancrase - Passion Tour 3
Sunday, April 4th 2010 		Decision (Unanimous)
Round 3
W Hiroki Aoki
#266 Lightweight 		  Pancrase - Passion Tour 1
Sunday, February 7th 2010 		TKO (Punches)
Round 1
W Hiroki Aoki
#341 Lightweight 		  Pancrase - Changing Tour 6
Sunday, October 25th 2009 		DQ (Groin Strike)
Round 1
W Hirotaka Tomiyama   Pancrase - Changing Tour 4
Saturday, August 8th 2009 		TKO (Punches)
Round 1
W Koji Nakamura   Pancrase - Changing Tour 3
Sunday, June 7th 2009 		KO (Punch)
Round 2
W Yoichi Kono   Tribelate - vol. 23
Saturday, April 25th 2009 		TKO (Punches)
Round 1
W Dae Yeon Lee   Tribelate - vol. 17
Saturday, April 26th 2008 		TKO (Punches)
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
10/01/2025 NR #349 Featherweight 27-7-2
40
01/01/2025 10 #136 Featherweight 27-6-2
69
10/01/2024 4 #126 Featherweight 27-6-2
74
07/01/2024   #122 Featherweight 27-6-2
74
04/01/2024 1 #122 Featherweight 27-6-2
74
01/01/2024 NR #123 Featherweight 27-6-2
74
07/01/2022 3 #101 Featherweight 27-5-2
78
04/01/2022 2 #98 Featherweight 27-5-2
83
01/01/2022 10 #96 Featherweight 27-5-2
83
10/01/2021 2 #86 Featherweight 27-5-2
93
07/01/2021 18 #88 Featherweight 27-5-2
93
04/01/2021 11 #70 Featherweight 26-5-2
102
01/01/2021 18 #81 Featherweight 26-5-2
102
10/01/2020 4 #63 Featherweight 26-5-2
116
07/01/2020 4 #67 Featherweight 25-5-2
116
04/01/2020 7 #63 Featherweight 25-5-2
116
01/01/2020 3 #70 Featherweight 25-5-2
116
10/01/2019 7 #67 Featherweight 24-5-2
116
07/01/2019 43 #60 Featherweight 24-5-2
116
04/01/2019 6 #103 Featherweight 23-5-2
80
01/01/2019 4 #97 Featherweight 23-5-2
80
10/01/2018 5 #93 Featherweight 23-5-2
85
07/01/2018 27 #88 Featherweight 23-5-2
85
04/01/2018 4 #115 Featherweight 22-5-2
71
01/01/2018 11 #119 Featherweight 22-5-2
71
10/01/2017 16 #108 Featherweight 21-5-2
74
07/01/2017 3 #92 Featherweight 21-4-2
83
04/01/2017 2 #95 Featherweight 20-4-2
76
01/01/2017 22 #93 Featherweight 20-4-2
76
10/01/2016 13 #71 Featherweight 19-4-2
92
07/01/2016 22 #84 Featherweight 18-4-2
82
04/01/2016 1 #62 Featherweight 18-3-2
98
01/01/2016 26 #63 Featherweight 18-3-2
98
10/01/2015 6 #37 Featherweight 18-2-2
124
07/01/2015 20 #43 Featherweight 17-2-2
113
04/01/2015 3 #63 Featherweight 16-2-2
93
01/01/2015 NR #60 Featherweight 16-2-2
93
10/01/2014   #73 Lightweight 15-1-2
105
07/01/2014   #73 Lightweight 15-1-2
105
04/01/2014 45 #73 Lightweight 15-1-2
107
01/01/2014 13 #118 Lightweight 14-1-2
74
10/01/2013 16 #131 Lightweight 14-1-2
67
07/01/2013 14 #115 Lightweight 13-1-2
71
04/01/2013 18 #101 Lightweight 13-1-2
80
01/01/2013 7 #119 Lightweight 13-1-1
70
10/01/2012 6 #112 Lightweight 12-1-1
68
07/01/2012 32 #118 Lightweight 11-1-1
66
04/01/2012 26 #86 Lightweight 11-1-1
81
01/01/2012 32 #112 Lightweight 10-1-1
67
10/01/2011 32 #144 Lightweight 9-1-1
55
07/01/2011 45 #176 Lightweight 8-1-1
49
04/01/2011 2 #221 Lightweight 7-1-1
41
01/01/2011 63 #219 Lightweight 7-1-1
41
10/01/2010 19 #282 Lightweight 6-1-1
35
07/01/2010 53 #263 Lightweight 6-1-0
36
04/01/2010 80 #210 Lightweight 6-0-0
40
01/01/2010 387 #290 Lightweight 5-0-0
32
10/01/2009 NR #677 Lightweight 4-0-0
18


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.

Current MMA Rankings

  • Pound for Pound
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  • Heavyweight+
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  • Women’s Featherweight+
  • Women’s Bantamweight
  • Women’s Flyweight
  • Women’s Strawweight
  • Women’s Atomweight
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