Lightweight · Men

Isao Kobayashi

Japan Never Quit debut 2008
Elo 1,343 peak 1,748 · 30 Mar 2014 405 below it
Tapology Sherdog id 4606412
27-9-2pro record
4L current streak
1,763best win, Elo
1,424average opponent
-- born 28 Oct 1988
68.0" / 68.5" height / reach

Elo history

Hover for the fight at that point; dots are wins and losses

Record

-- – --
Rating by method KO1,113 Sub1,081 Dec1,150

Best wins

By the opponent's Elo on the night
  1. Kuniyoshi Hironaka KO/TKO R3 · 30 Mar 2014 · Pancrase 1,763
  2. Nazareno Malegarie Decision R5 · 26 May 2019 · Pancrase 1,666
  3. Marlon Sandro Decision R3 · 26 Apr 2015 · Pancrase 1,654
  4. Yutaka Saito Decision R5 · 19 Sep 2016 · Vale Tudo Japan 1,649
  5. Will Chope Decision R3 · 9 Aug 2015 · Pancrase 1,582

Losses

The latest 5 of 9
  1. Yusuke Yachi Decision R3 · 6 Jun 2026 · RIZIN Fighting Federation 1,522
  2. Yusuke Kasuya Submission R2 · 20 Dec 2025 · Pancrase 1,433
  3. Kalybek Arzykul Uulu KO/TKO R1 · 27 Jul 2025 · Pancrase 1,565
  4. Yves Landu Decision R3 · 17 Nov 2023 · Bellator MMA 1,567
  5. Kyle Aguon Decision R3 · 20 Aug 2017 · Pancrase 1,446

Fight history

40 bouts, newest first; amateur bouts are shaded. Hover a heading for what it means.
# Date Result Opponent Weight class Method Round Score Elo ± Opp Elo Odds Event
40 6 Jun 202637.6 yrs L27-9-2 Yusuke Yachi 28-16 · 36.1 yrs Lightweight DecisionUnanimous R315:00 0.16 1,366→1,343 -23 1,522 +150→+181 Rizin FF - Landmark Vol. 14 RIZIN Fighting Federation
39 20 Dec 202537.1 yrs L27-8-2 Yusuke Kasuya 15-10-2 · 36.1 yrs Lightweight SubRear Naked Choke R25:44 0.00 1,461→1,366 -95 1,433 – Pancrase - 360 Pancrase
38 27 Jul 202536.7 yrs L27-7-2 Kalybek Arzykul Uulu 11-1 · 23.7 yrs Featherweight KO/TKOPunches R11:47 0.00 1,543→1,461 -82 1,565 – Pancrase - 355 Pancrase
37 17 Nov 202335.1 yrs L27-6-2 Yves Landu 20-9 · 37.3 yrs Featherweight DecisionSplit R315:00 0.29* 1,609→1,562 -47 1,567 +158→+155 Bellator 301: Amosov vs. Jackson Bellator MMA
36 30 May 202132.6 yrs W27-5-2 Taichi Nakajima 14-10-1 · 32.2 yrs Featherweighttitle DecisionUnanimous R525:00 0.81 1,628→1,658 +30 1,529 – Pancrase - 321 Pancrase
35 24 Jul 202031.7 yrs W26-5-2 Akira Okada 13-7-4 · 33.5 yrs Featherweight DecisionUnanimous R315:00 0.84 1,637→1,628 -9 1,269 – Pancrase - 316 Pancrase
34 20 Oct 201931.0 yrs W25-5-2 Kyle Aguon 13-7 · 30.5 yrs Featherweighttitle DecisionSplit R525:00 0.55 1,674→1,637 -37 1,474 – Pancrase - 309 Pancrase
33 26 May 201930.6 yrs W24-5-2 Nazareno Malegarie 35-6-1 · 33.0 yrs Featherweighttitle DecisionUnanimous R525:00 0.81 1,604→1,674 +70 1,666 – Pancrase - 305 Pancrase
32 15 Apr 201829.5 yrs W23-5-2 Koyomi Matsushima 9-2 · 25.5 yrs Featherweighttitle DQIllegal Knee R14:30 0.00 1,608→1,608 +0 1,554 – Pancrase 295: Sunabe vs. Murofushi Pancrase
31 10 Dec 201729.1 yrs W22-5-2 Yusuke Kasuya 10-4-2 · 28.1 yrs Featherweight DecisionUnanimous R315:00 0.84 1,585→1,608 +23 1,429 – Pancrase - 292 Pancrase
30 20 Aug 201728.8 yrs L21-5-2 Kyle Aguon 10-6 · 28.4 yrs Featherweight DecisionSplit R315:00 0.44 1,640→1,585 -55 1,446 – Pancrase - 289 Pancrase
29 23 Apr 201728.5 yrs W21-4-2 Marko Burušić 9-5 · 24.2 yrs Featherweight KO/TKOPunches From Back Mount R29:34 1.00 1,621→1,640 +18 1,249 – Pancrase - 286 Pancrase
28 18 Dec 201628.1 yrs W20-4-2 Hiroyuki Takaya 21-13-2 · 39.5 yrs Featherweight DecisionUnanimous R315:00 0.84 1,567→1,621 +54 1,545 – Pancrase 283 Pancrase
27 19 Sep 201627.9 yrs W19-4-2 Yutaka Saito 12-1-2 · 29.0 yrs Lightweight DecisionSplit R525:00 0.55 1,530→1,567 +37 1,649 – Vale Tudo Japan - VTJ 8th Vale Tudo Japan
26 24 Jun 201627.7 yrs L18-4-2 Justin Lawrence 10-4 · 26.1 yrs Featherweight KO/TKOPunches R27:11 0.00 1,608→1,530 -78 1,644 – Bellator 157: Dynamite 2 Bellator MMA
25 23 Oct 201527.0 yrs L18-3-2 Goiti Yamauchi 18-2 · 22.8 yrs Featherweight SubRear Naked Choke R313:50 0.00 1,714→1,608 -106 1,639 +145→+145 Bellator 144: Halsey vs. Carvalho Bellator MMA
24 9 Aug 201526.8 yrs W18-2-2 Will Chope 24-7 · 24.9 yrs Featherweight DecisionUnanimous R315:00 0.84 1,678→1,714 +36 1,582 – Pancrase - 269 Pancrase
23 26 Apr 201526.5 yrs W17-2-2 Marlon Sandro 25-5-1 · 38.1 yrs Featherweight DecisionSplit R315:00 0.56 1,672→1,678 +6 1,654 – Pancrase - 266 Pancrase
22 31 Dec 201426.2 yrs L16-2-2 Kazunori Yokota 20-5-3 · 36.7 yrs Featherweight DecisionUnanimous R315:00 0.16 1,743→1,672 -71 1,699 – Deep - Dream Impact 2014: Omisoka Special DEEP
21 4 Oct 201425.9 yrs W16-1-2 Takeshi Inoue 21-9 · 34.6 yrs Featherweight DecisionUnanimous R315:00 0.84 1,748→1,743 -5 1,417 – Vale Tudo Japan - VTJ 6th Vale Tudo Japan
20 30 Mar 201425.4 yrs W15-1-2 Kuniyoshi Hironaka 22-8 · 37.8 yrs Lightweight KO/TKOPunches & Soccer Kicks R313:58 1.00 1,628→1,748 +120 1,763 – Pancrase 257 Pancrase
19 29 Sep 201324.9 yrs W14-1-2 Yoshiaki Takahashi 10-3-2 · 27.2 yrs Lightweighttitle DecisionMajority R315:00 0.62 1,661→1,628 -33 1,406 – Pancrase 252 Pancrase
18 17 Mar 201324.4 yrs D13-1-2 Jorge Patino 34-13-1 (1) · 39.9 yrs Lightweight DecisionUnanimous R315:00 0.50 1,670→1,661 -9 1,636 – Pancrase - 246 Pancrase
17 1 Dec 201224.1 yrs W13-1-1 Kenichiro Togashi 12-8-5 · 32.0 yrs Lightweight KO/TKOPunches R10:16 1.00 1,616→1,670 +54 1,476 – Pancrase - Progress Tour 14 Pancrase
16 1 Sep 201223.8 yrs W12-1-1 Tatsunori Tanaka 5-4 · 33.7 yrs Lightweight SubArmbar R13:05 1.00 1,584→1,616 +32 1,321 – Pancrase - Progress Tour 10 Pancrase
15 1 Apr 201223.4 yrs W11-1-1 Koji Oishi 21-8-9 · 34.8 yrs Lightweighttitle DecisionUnanimous R315:00 0.84 1,554→1,584 +30 1,433 – Pancrase - Progress Tour 4 Pancrase
14 3 Dec 201123.1 yrs W10-1-1 Kazuki Tokudome 9-2-1 · 24.8 yrs – KO/TKOPunches R14:14 1.00 1,436→1,554 +118 1,561 – Pancrase - Impressive Tour 13 Pancrase
13 7 Aug 201122.8 yrs W9-1-1 Tomoyoshi Iwamiya 5-10-3 · 29.1 yrs – DecisionUnanimous R315:00 0.84 1,402→1,436 +34 1,296 – Pancrase - Impressive Tour 8 Pancrase
12 3 May 201122.5 yrs W8-1-1 Yukinari Tamura 9-5-5 · 30.0 yrs – DecisionSplit R315:00 0.56 1,391→1,402 +11 1,393 – Pancrase - Impressive Tour 4 Pancrase
11 3 Nov 201022.0 yrs W7-1-1 Artur Umakhanov 10-5 · 31.7 yrs – SubGuillotine Choke R14:21 1.00 1,337→1,391 +54 1,196 – Pancrase - Passion Tour 10 Pancrase
10 4 Jul 201021.7 yrs D6-1-1 Tomoyoshi Iwamiya 5-10-2 · 28.1 yrs – DecisionSplit R210:00 0.50 1,357→1,337 -19 1,278 – Pancrase - Passion Tour 6 Pancrase
9 4 Apr 201021.4 yrs L6-1 Koji Oishi 19-8-6 · 32.8 yrs – DecisionUnanimous R315:00 0.16 1,424→1,357 -68 1,392 – Pancrase - Passion Tour 3 Pancrase
8 7 Feb 201021.3 yrs W6-0 Hiroki Aoki 5-3 · 24.8 yrs Lightweight KO/TKOPunches R11:00 1.00 1,325→1,424 +99 1,372 – Pancrase - Passion Tour 1 Pancrase
7 25 Oct 200921.0 yrs W5-0 Hiroki Aoki 4-2 · 24.6 yrs Lightweight DQGroin Strike R10:50 0.00 1,325→1,325 +0 1,278 – Pancrase - Changing Tour 6 Pancrase
6 8 Aug 200920.8 yrs W4-0 Hirotaka Tomiyama 2-5-3 · 31.4 yrs Lightweighttitle KO/TKOPunches R14:58 1.00 1,274→1,325 +51 1,119 – Pancrase - Changing Tour 4 Pancrase
5 7 Jun 200920.6 yrs W3-0 Koji Nakamura debut · 23.8 yrs Lightweight KO/TKOPunch R26:03 1.00 1,167→1,274 +107 1,246 – Pancrase - Changing Tour 3 Pancrase
4 25 Apr 200920.5 yrs W2-0 Yoichi Kono 0-1 · 25.9 yrs – KO/TKOPunches R11:10 1.00 1,119→1,167 +48 952 – Tribelate - vol. 23 TRIBELATE
3 7 Dec 200820.1 yrs D0-0-2 Yuki Tokushige debut Lightweight DecisionUnanimous R210:00 0.50 1,117→1,119 +2 1,127 – Pancrase 196: Shining 10 Pancrase am
2 1 Oct 200819.9 yrs D0-0-1 Shigeaki Kusayanagi debut · 27.3 yrs Welterweight DecisionUnanimous R210:00 0.50 1,112→1,117 +5 1,136 – Pancrase 194 Pancrase am
1 26 Apr 200819.5 yrs W1-0 Dae Yeon Lee debut · 24.7 yrs – KO/TKOPunches R15:00 1.00 1,025→1,112 +88 1,025 – Tribelate - vol. 17 TRIBELATE