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:
| Res. | Record | Opponent | Method | Event | Round | Time | Location |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Loss | 34–9 (1) | Diego Sanchez | Decision (split) | UFC on Fuel TV: Silva vs. Stann | 3.0 | 5:00 | Saitama , Japan |
| Win | 34–8 (1) | Mac Danzig | Decision (split) | UFC on Fuel TV: Franklin vs. Le | 3.0 | 5:00 | Cotai Strip , Macau |
| Win | 33–8 (1) | Eiji Mitsuoka | TKO (punches) | UFC 144 | 2.0 | 2:21 | Saitama , Japan |
| Loss | 32–8 (1) | Nate Diaz | Submission (armbar) | UFC 135 | 1.0 | 4:27 | Denver, Colorado , United States |
| Loss | 32–7 (1) | Clay Guida | Submission (guillotine choke) | UFC 125 | 2.0 | 4:27 | Las Vegas, Nevada , United States |
| Win | 32–6 (1) | Tyson Griffin | KO (punch) | UFC Live: Jones vs. Matyushenko | 1.0 | 1:04 | San Diego, California , United States |
| Loss | 31–6 (1) | Kenny Florian | Submission (rear naked choke) | UFC Fight Night: Florian vs. Gomi | 3.0 | 2:52 | Charlotte, North Carolina , United States |
| Win | 31–5 (1) | Tony Hervey | Decision (unanimous) | Vale Tudo Japan 2009 | 5.0 | 5:00 | Tokyo , Japan |
| Win | 30–5 (1) | Takashi Nakakura | KO (punches) | Shooto: Tradition Final | 2.0 | 4:42 | Tokyo , Japan |
| Loss | 29–5 (1) | Satoru Kitaoka | Submission (achilles lock) | Sengoku Rebellion 2009 | 1.0 | 1:41 | Saitama , Japan |
| Loss | 29–4 (1) | Sergey Golyaev | Decision (split) | Sengoku 6 | 3.0 | 5:00 | Saitama , Japan |
| Win | 29–3 (1) | Seung Hwang Bang | Decision (unanimous) | Sengoku 4 | 3.0 | 5:00 | Saitama , Japan |
| Win | 28–3 (1) | Duane Ludwig | TKO (doctor stoppage) | Sengoku 1 | 1.0 | 2:28 | Tokyo , Japan |
| NC | 27–3 (1) | Nick Diaz | NC (overturned by NSAC ) | Pride 33 | 2.0 | 1:46 | Las Vegas, Nevada , United States |
| Win | 27–3 | Mitsuhiro Ishida | TKO (strikes) | Pride Shockwave 2006 | 1.0 | 1:14 | Saitama , Japan |
| Win | 26–3 | Marcus Aurélio | Decision (split) | Pride Bushido 13 | 2.0 | 5:00 | Yokohama, Kanagawa , Japan |
| Win | 25–3 | David Baron | Submission ( rear naked choke ) | Pride Bushido 12 | 1.0 | 7:10 | Nagoya, Aichi , Japan |
| Loss | 24–3 | Marcus Aurélio | Technical submission (arm-triangle choke) | Pride Bushido 10 | 1.0 | 4:34 | Tokyo , Japan |
| Win | 24–2 | Hayato Sakurai | KO (punches) | Pride Shockwave 2005 | 1.0 | 3:56 | Saitama , Japan |
| Win | 23–2 | Luiz Azeredo | Decision (unanimous) | Pride Bushido 9 | 2.0 | 5:00 | Tokyo , Japan |
| Win | 22–2 | Tatsuya Kawajiri | Submission ( rear naked choke ) | Pride Bushido 9 | 1.0 | 7:42 | Tokyo , Japan |
| Win | 21–2 | Jean Silva | Decision (unanimous) | Pride Bushido 8 | 2.0 | 5:00 | Nagoya, Aichi , Japan |
| Win | 20–2 | Luiz Azeredo | KO (punches) | Pride Bushido 7 | 1.0 | 3:46 | Tokyo , Japan |
| Win | 19–2 | Jens Pulver | KO (punch) | Pride Shockwave 2004 | 1.0 | 6:21 | Saitama , Japan |
| Win | 18–2 | Charles Bennett | Technical submission ( kimura ) | Pride Bushido 5 | 1.0 | 5:52 | Osaka , Japan |
| Win | 17–2 | Fabio Mello | TKO (punches) | Pride Bushido 4 | 1.0 | 8:07 | Nagoya, Aichi , Japan |
| Win | 16–2 | Ralph Gracie | KO (knees) | Pride Bushido 3 | 1.0 | 0:06 | Yokohama, Kanagawa , Japan |
| Win | 15–2 | Jadyson Costa | TKO (punches) | Pride Bushido 2 | 1.0 | 4:55 | Yokohama, Kanagawa , Japan |
| Loss | 14–2 | B.J. Penn | Submission ( rear naked choke ) | Rumble on the Rock 4 | 3.0 | 2:35 | Honolulu, Hawaii , United States |
| Loss | 14–1 | Joachim Hansen | Decision (majority) | Shooto in Yokohama Gymnasium | 3.0 | 5:00 | Yokohama, Kanagawa , Japan |
| Win | 14–0 | Nick Ertl | Submission ( armbar ) | Shooto: 2/23 in Korakuen Hall | 1.0 | 4:59 | Tokyo , Japan |
| Win | 13–0 | Dokonjonosuke Mishima | TKO (punches) | Shooto 2002 Year-End Show | 2.0 | 0:52 | Urayasu, Chiba , Japan |
| Win | 12–0 | Chris Brennan | Decision (unanimous) | Shooto: Treasure Hunt 10 | 3.0 | 5:00 | Yokohama, Kanagawa , Japan |
| Win | 11–0 | Leonardo Santos | Decision (majority) | Shooto: Treasure Hunt 7 | 3.0 | 5:00 | Sakai, Osaka , Japan |
| Win | 10–0 | Rumina Sato | Decision (unanimous) | Shooto - To The Top Final Act | 3.0 | 5:00 | Urayasu, Chiba , Japan |
| Win | 9–0 | Ryan Bow | Decision (unanimous) | Shooto - R.E.A.D. 12 | 3.0 | 5:00 | Tokyo , Japan |
| Win | 8–0 | Paul Rodriguez | Decision (unanimous) | Shooto - R.E.A.D. 6 | 3.0 | 5:00 | Tokyo , Japan |
| Win | 7–0 | Huanderson Pavao | Decision (unanimous) | Shooto - R.E.A.D. 3 | 3.0 | 5:00 | Kadoma, Osaka , Japan |
| Win | 6–0 | Johnny Eduardo | Submission ( rear naked choke ) | Vale Tudo Japan 1999 | 3.0 | 1:43 | Urayasu, Chiba , Japan |
| Win | 5–0 | Takuya Kawabara | Decision (unanimous) | Shooto - Renaxis 4 | 3.0 | 5:00 | Tokyo , Japan |
| Win | 4–0 | Stephen Palling | Submission ( rear naked choke ) | SuperBrawl 12 | 1.0 | 3:06 | Honolulu, Hawaii , United States |
| Win | 3–0 | Takuya Kuwabara | Decision (unanimous) | Shooto - Renaxis 1 | 3.0 | 5:00 | Tokyo , Japan |
| Win | 2–0 | Kazumichi Takada | TKO (punches) | Shooto - Devilock Fighters | 2.0 | 3:42 | Tokyo , Japan |
| Win | 1–0 | Hiroshi Tsuruya | Decision (unanimous) | Shooto - Las Grandes Viajes 6 | 3.0 | 5:00 | Tokyo, Japan |
Question:
What is the number of rounds that took place for the fight that lasted 6:21?
Answer:
1.0