K-Metal League 2002
July 23 - August 17, 2002
| 1. | Kunio Toshima (winner) | 10 |
| 2. | Yasu Urano | 10 |
| 3. | Joe Aoyama | 8 |
| 4. | Sambo Oishi | 6 |
| 5. | Teppei Ishizaki | 6 |
| 6. | Shiori Asahi | 2 |
| 7. | Daisuke Matsumoto | 0 |
Grand Final: Toshima pinned Urano (8:08)
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K-Metal League 2003
August 2 - 31, 2003
| 1. | Sambo Oishi (winner) | 10 |
| 2. | Teppei Ishizaki | 6 |
| 3. | Shiori Asahi | 6 |
| 4. | DJ Nira | 4 |
| 5. | Taku Joetsu | 2 |
| 6. | Mike Lee, Jr. | 0 |
Semi-Finals: Ishizaka beat Asahi (12:04) via submisison
Grand Final: Oishi pinned Ishizaka (12:28)
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K-Metal League 2004
July 19 - August 22, 2004
| 1. | Yuji Hino | 5 |
| 2. | Shiori Asahi (winner) | 4 |
| 3. | Kazma | 4 |
| 4. | Isami | 3 |
| 5. | Hajime Ishikawa | 2 |
| 6. | Saburo Inematsu | 2 |
| 7. | Taku Joetso | 1 |
Semi-Finals: Asahi pinned Kazma (5:40)
Grand Final: Asahi beat Hino (11:48) via submisison
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K-Metal League 2005
April 24 - May 15, 2005
| 1. | Nobutaka Moribe (winner) | 5 |
| 2. | Hajime Ishikawa | 5 |
| 3. | Masahiro Takanashi | 4 |
| 4. | Taku Joetsu | 3 |
| 5. | Saburo Inematsu | 3 |
| 6. | Yusaku Obata | 1 |
| 7. | Tomoka Nakagawa | 0 |
Grand Final: Moribe pinned Ishikawa (12:13)
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K-Metal League 2006
April 29 - May 7, 2006
| 1. | Taku Michinoku (winner) | 4 |
| 2. | Yusaku Obata | 4 |
| 3. | DJ Nira | 3 |
| 4. | Daisuke Sasaki | 2 |
| 5. | Guillermo Akiba | 1 |
| 6. | Bambi | 1 |
Grand Final: Michinoku beat Obata (13:20)
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K-Metal League 2007
April 29 - May 6, 2007
| 1. | Randy Takuya (winner) | 3 |
| 2. | Kaji Yamato | 3/td> |
| 3. | Taishi Takizawa | 2 |
| 4. | Hiro Tonai | 2 |
| 5. | Tadanobu Fujisawa | 1 |
Grand Final: Takuya TKO Yamato (13:38)
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K-Metal League 2008
May 1 - 6, 2008
| 1. | Taishi Takizawa (winner) | 6 |
| 2. | Hiro Tonai | 5 |
| 3. | Kaji Yamato | 5 |
| 4. | Tadanobu Fujisawa | 2 |
| 5. | Ryuichi Sekine | 2 |
Semi-Finals: Tonai pinneed Yamato (4:37)
Grand Final: Takizawa pinned Tonai (14:32)
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K-Metal League 2009
April 29 - May 6, 2009
| 1. | Randy Takuya (winner) | 5 |
| 2. | Hiro Tonai | 5 |
| 3. | Ryuichi Sekine | 4 |
| 4. | Ryuichi Kawakami | 4 |
| 5. | Yusuke Shiranamin | 2 |
Grand Final: Takuya beat Hiro Tonai (13:46)
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K-Metal League 2010
April 29 - May 5, 2010
| 1. | Kazuki Hashimoto (winner) | 4 |
| 2. | Taketo Iwako | 4 |
| 3. | Shinya Matsuyuki | 2 |
| 4. | Toru Sugiura | 2 |
Grand Final: Hashimoto pinned Iwako (12:47)
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No event was held in 2011
K-Metal League 2012
April 28 - May 6, 2012
| 1. | Eggplant Nasu (winner) | 6 |
| 2. | Hiroshi Fukuda | 6 |
| 3. | Ayumu Honda | 4 |
| 4. | Tetsuya Endo | 2 |
| 5. | Daishi | 2 |
Grand Final: Nasu beat Fukuda (15:27) via submision
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K-Metal League 2013
April 28 - May 6, 2013
| 1. | Tank Nagai (winner) | 6 |
| 2. | Hideyoshi Kamitani | 6 |
| 3. | Ayumu Honda | 4 |
| 4. | Jonathon Bader | 2 |
| 5. | Daichi Kazato | 2 |
Grand Final: Nagai pinned Kamitani (16:46)
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No league was held in 2014
K-Metal League 2015
May 2 - 6, 2015
| 1. | Takayuki Ueki | 6 |
| 2. | Kotaro Yoshino (winner) | 5 |
| 3. | Kouki Iwasaki | 4 |
| 4. | Yoshihiro Horiguchi | 3 |
| 5. | Yuma | 2 |
Grand Final: Yoshino pinned Ueki (9:46)
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K-Metal League 2016
April 29 - May 5, 2016
| 1. | Kyu Mogami | 6 |
| 2. | Ayato Yoshida (winner) | 6 |
| 3. | Rekka | 4 |
| 4. | Go Asakawa | 4 |
| 5. | Takuya Nomura | 0 |
Grand Final: Yoshida pinned Mogami (10:05)
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K-Metal League 2017
April 29 - May 7, 2017
| 1. | Yuki Ueno | 6 |
| 2. | Go Asakawa (winner) | 6 |
| 3. | Kyu Mogami | 4 |
| 4. | Yuu Iizuka | 2 |
| 5. | Marines Mask | 2 |
Grand Final: Asakawa pinned Ueno (18:08)
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K-Metal League 2018
April 29 - May 6, 2018
| 1. | Takuho Kato | 8 |
| 2. | Marines Mask (winner) | 6 |
| 3. | Kelly Sixx | 4 |
| 4. | Shinichiro Wakita | 2 |
| 5. | Tatsuya Hanami | 0 |
Grand Final: Marines Mask beat Kato (9:40)
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