Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Result | Record | Opponent | Event | Method | Round | Time |
| --- | --- | --- | --- | --- | --- | --- |
| Result | Record | Opponent | Event | Method | Round | Time |
| Win | 37-21-3 | Tsutomu Takahagi | Big Bang 12 | Decision (Unanimous) | 3 | 3:00 |
| Win | 36-21-3 | Tomohiko Hashimoto | Big Bang 11 | KO | 1 | 0:18 |
| Loss | 35-21-3 | Makoto Uehara | K-1 World Grand Prix 2012 in Tokyo Final 16 | Decision (3-0) | 3 | 3:00 |
| Win | 35-20-3 | Alex Roberts | Big Bang 10 | KO | 2 | 1:07 |
| Win | 34-20-3 | Masayoshi Kakutani | IGF Genome 21 | KO | 1 | 2:03 |
| Win | 33-20-3 | Soichi Nishida | Big Bang 9 | KO | 1 | 1:24 |
| Loss | 32-20-3 | Fabiano Aoki | HEAT 22 | KO | 2 | 1:39 |
| Loss | 32-19-3 | Singh Jaideep | RISE 85 Heavyweight Tournament 2011 | TKO | 2 | 2:59 |
| Draw | 32-18-3 | Alex Roberts | NJKF Titans Neo X | Decision Draw | 3 | 3:00 |
| Win | 32-18-2 | Tsutomu Takahagi | RISE 80 | Decision (2-0) | 3 | 3:00 |
| Win | 31-18-2 | Tatsufumi Tomihira | Heat 17 | Decision (2-0) | 3 | 3:00 |
| Win | 30-18-2 | Magnum Sakai | MAJKF Break 8 | Ext R. Decision (3-0) | 4 | 3:00 |
| Loss | 29-18-2 | Koichi Watanabe | Fujiwara Festival 2010 | Decision (3-0) | 3 | 3:00 |
| Win | 29-17-2 | Bo Lam Moon | Heat 14 | TKO | 1 | 1:43 |
| Win | 28-17-2 | Toshio Matsumoto | NJKF Titans Neo VII | KO | 2 | 0:24 |
| Win | 27-17-2 | Makato | Heat 13 | TKO | 2 | 2:08 |
| Win | 26-17-2 | Emeka | Heat 11 | Decision (3-0) | 3 | 3:00 |
| Win | 25-17-2 | Makoto Uehara | Heat 10 | Decision (3-0) | 3 | 3:00 |
| Win | 24-17-2 | Bo Lam Moon | Heat 9 | Decision (2-0) | 3 | 3:00 |
| Win | 23-17-2 | Prince Ali | Heat 8 | TKO | 3 | 2:23 |
| Win | 22-17-2 | Gary Goodridge | Gladiator International Friendship Rally | Decision (3-0) | 3 | 3:00 |
| Loss | 21-17-2 | Ruslan Karaev | NJKF Magnam 16 | KO | 3 | 2:06 |
| Loss | 21-16-2 | Paul Slowinski | K-1 WGP 2007 in Amsterdam | KO | 1 | 1:50 |
| Win | 21-15-2 | Will Riva | NJKF Titans Neo I | Decision (3-0) | 3 | 3:00 |
| Loss | 20-15-2 | Gokhan Saki | K-1 WGP 2007 in Yokohama | TKO | 2 | 3:00 |
| Win | 20-14-2 | Freddy Kemayo | K-1 WGP 2006 in Sapporo | Decision (2-0) | 3 | 3:00 |
| Draw | 19-14-2 | Kaoklai Kaennorsing | NJKF Titans 3rd | Decision Draw | 3 | 3:00 |
| Loss | 19-14-1 | Tatsufumi Tomihira | K-1 WGP 2005 in Hiroshima | Ext R. Decision (2-1) | 4 | 3:00 |
| Loss | 19-13-1 | Jérôme Le Banner | K-1 WGP 2004 FINAL | KO | 2 | 1:03 |
| Loss | 19-12-1 | Ray Sefo | K-1 WGP 2004 | Decision (3-0) | 3 | 3:00 |
| Win | 19-11-1 | Nobu Hayashi | K-1 Beast 2004 in Shizukoa | Decision (3-0) | 3 | 3:00 |
| Win | 18-11-1 | Tatsufumi Tomihira | K-1 Beast 2004 in Shizukoa | KO | 3 | 0:58 |
| Win | 17-11-1 | Noboru Uchida | K-1 Beast 2004 in Shizukoa | Decision (3-0) | 3 | 3:00 |
| Win | 16-11-1 | Eric Esch | K-1 Beast 2004 | Decision (3-0) | 3 | 3:00 |
| Win | 15-11-1 | Kimo Leopoldo | K-1 Burning 2004 | KO | 2 | 2:00 |
| Loss | 14-11-1 | Michael McDonald | Inoki Bom-Ba-Ye 2003 | KO | 2 | 0:46 |
| Loss | 14-10-1 | Yusuki Fujimoto | K-1 Survival 2003 | Decision (3-0) | 4 | 3:00 |
| Win | 14-9-1 | Tsuhyoshi Nakasako | K-1 Survival 2003 | Decision (3-0) | 4 | 3:00 |
| Win | 13-9-1 | TSUYOSHI | K-1 Beast II 2003 | Decision (2-0) | 3 | 3:00 |
| Win | 12-9-1 | Tom Erikson | K-1 Beast 2003 | KO | 1 | 1:14 |
| Loss | 11-9-1 | Musashi | K-1 Andy Spirits 2002 | Ext R. Decision (2-0) | 4 | 3:00 |
| Loss | 11-8-1 | Jérôme Le Banner | K-1 WGP in Nagoya | KO | 1 | 1:42 |
| Win | 11-7-1 | Rene Rooze | K-1 RISING 2002 | KO | 1 | 3:00 |
| Loss | 10-7-1 | Mark Hunt | K-1 WGP 2001 in Melbourne | KO | 1 | 2:52 |
| Loss | 10-6-1 | Mike Bernardo | K-1 Rising 2001 | TKO | 4 | 1:32 |
| Draw | 10-5-1 | Toru Oishi | K-1 J-MAX | Draw | 5 | 3:00 |
| Loss | 10-5 | Mirko Filipović | K-1 WGP Fukuoka | Decision (3-0) | 3 | 3:00 |
| Win | 10-4 | Tomasz Kucharzewski | K-1 WGP Fukuoka | KO | 1 | 1:49 |
| Loss | 9-4 | Musashi | K-1 Spirits 2000 | Decision (3-0) | 3 | 3:00 |
| Win | 9-3 | Teng Jun | K-1 Spirits 2000 | Decision | 3 | 2:17 |
| Win | 8-3 | Masashi Suzuki | K-1 Spirits 2000 | TKO | 3 | 2:17 |
| Win | 7-3 | Masaaki Miyomoto | K-1 Survival 2000 | KO | 1 | 1:51 |
| Loss | 6-3 | Mirko Filipović | K-1 Burning 2000 | KO | 4 | 2:51 |
| Win | 6-2 | Nobu Hyashi | K-1 Rising 2000 | KO | 3 | 0:50 |
| Loss | 5-2 | Andy Hug | K-1 World Grand Prix '99 Opening Round | TKO | 1 | 1:51 |
| Loss | 5-1 | Musashi | K-1 Spirits '99 | Decision (3-0) | 3 | 3:00 |
| Win | 5-0 | Teng Jun | K-1 Spirits '99 | Decision (2-1) | 3 | 3:00 |
| Win | 4-0 | Ryo Takigawa | K-1 Spirits '99 | KO | 1 | 2:06 |
| Win | 3-0 | Chris Ballard | King Of The Ring | TKO | 1 | 0:00 |
| Win | 2-0 | Simon Dore | K-1 Survival '99 | TKO | 3 | 1:55 |
| Win | 1-0 | John Wyatt | K-1 The Challenge '99 | Decision (3-0) | 5 | 3:00 |
Question:
Which opponent led to a 6-3 record?
Answer:
Mirko Filipović