# Cage Force

Cage Force (former name Demolition Octagon Gear (D.O.G.)) is a defunct Japanese Mixed Martial Arts (MMA) organization operated by Greatest Common Multiple (GCM) Communication. It was the first Japanese MMA organization to feature an octagon cage instead of a ring. Yushin Okami, Eiji Mitsuoka, Kuniyoshi Hironaka and Keita Nakamura experienced a cage match in D.O.G before contract with UFC. It enforced the Unified Rules of Mixed Martial Arts when the changed name to "Cage Force" from "D.O.G.", to prepare Japanese MMA fighters for the UFC. Cage Force tournament winner was entitled to a contract with UFC. Yoshiyuki Yoshida and Takeya Mizugaki have been contracted to the UFC and WEC by winning the tournament.

## History
### D.O.G.

On March 12, 2005, the first event of D.O.G. held at Differ Ariake in Tokyo, Japan. Yushin Okami defeated Brian "Tattoo" Foster by Submission at Main event.
On June 11, 2005, Second event "D.O.G. 2" held. Yushin Okami defeated Nick Thompson by Thompson's Elbow Injury at 29 seconds of the 1st round. Hidetaka Monma defeated Dave Strasser by KO of the 1st round.

### Cage Force

On September 28, 2006, GCM Communication announced the inauguration of "World Wide Cage Network (WWCN)" meaning cooperation with five MMA organizations in the world. GCM Communication changed name to "Cage Force (Named by Caol Uno)" from the "D.O.G.". and Cage Force held On November 25, 2006.
On 2007,Cage Forece held the lightweight and Welterweight tournament. Artur Oumakhanov defeated Kotetsu Boku via Split Decision and Won Cage Force lightweight Championship. Yoshiyuki Yoshida defeated Dan Hardy via DQ and Won Cage Force Welterweight Championship. Yoshida contracted with the UFC, but Oumakhanov could not contract with the UFC because he lost to Andre Amade at Hero's During the tournament.
On 2008,Cage Forece held the Featherweight and Bantamweight tournament. Yuji Hoshino defeated Akiyo Nishiura via Unanimous Decision and Won Cage Force Featherweight Championship. Takeya Mizugaki defeated Masahiro Oishi by TKO and Won Cage Force Bantamweight Championship. Mizugaki contracted with the WEC and fought Miguel Torres for the WEC Bantamweight Championship of WEC 40 on April 5, 2009.

### Valkyrie

On September 27, 2008, Valkyrie was established and the first event was promoted In the first part of "Cage Force EX" on November 8, 2008.

### Stopping the GCM

On November 11, 2011, Wajyutsu Keisyukai announced the inauguration of new players association. and They Separated from the GCM Communication because virtually cessation of activity by GCM. Cage Force was Virtually completed in the last event "Cage Force 20" on November 28, 2010.

## Events
### Cage Force

| No. | Event | Date | Venue | Location |
| 27 | Cage Force 20 | November 28, 2010 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 26 | Cage Force 19 | September 26, 2010 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 25 | Cage Force 18 | July 25, 2010 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 24 | Cage Force 17 | June 19, 2010 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 23 | Cage Force 16 | April 11, 2010 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 22 | Cage Force 15 | February 11, 2010 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 21 | Cage Force 14 | December 5, 2009 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 20 | Cage Force 13 | October 24, 2009 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 19 | Cage Force 12 | September 12, 2009 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 18 | Cage Force & Valkyrie | July 12, 2009 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 17 | Cage Force 11 | June 27, 2009 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 16 | Cage Force 10 | April 25, 2009 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 15 | Cage Force EX Eastern Bound | February 28, 2009 | Tokorozawa City Gymnasium | Tokorozawa, Saitama, Japan |
| 14 | Cage Force 9 | December 6, 2008 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 13 | Cage Force EX Eastern Bound | November 8, 2008 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 12 | Cage Force 8 | September 27, 2008 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 11 | Cage Force 7 | June 22, 2008 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 10 | Cage Force 6 | April 5, 2008 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 9 | Cage Force EX Eastern Bound | May 27, 2007 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 8 | Cage Force 5 | December 1, 2007 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 7 | Cage Force EX Eastern Bound | February 11, 2008 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 6 | Cage Force 4 | September 8, 2007 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 5 | Cage Force 3 | June 9, 2007 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 4 | Cage Force EX Eastern Bound | May 27, 2007 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 3 | Cage Force 2 | March 17, 2007 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 2 | Cage Force EX Western Bound | February 17, 2007 | Yonago Industrial Gymnasium | Yonago, Tottori, Japan |
| 1 | Cage Force 1 | November 25, 2006 | Differ Ariake Arena | Ariake, Tokyo, Japan |

### D.O.G.

| No. | Event | Date | Venue | Location |
| 7 | D.O.G. 7 | September 9, 2006 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 6 | D.O.G. 6 | June 11, 2006 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 5 | D.O.G. 5 | April 1, 2006 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 4 | D.O.G. 4 | December 11, 2005 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 3 | D.O.G. 3 | September 17, 2005 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 2 | D.O.G. 2 | June 11, 2005 | Differ Ariake Arena | Ariake, Tokyo, Japan |
| 1 | D.O.G. 1 | March 12, 2005 | Differ Ariake Arena | Ariake, Tokyo, Japan |

## Current Cage Force champions

| Men's division | Upper weight limit | Last champions |
| Middleweight | 85 kg (187.4 lb; 13.4 st) | N/A |
| Welterweight | 77 kg (169.8 lb; 12.1 st) | Yoshiyuki Yoshida |
| Lightweight | 70 kg (154.3 lb; 11.0 st) | Kuniyoshi Hironaka |
| Featherweight | 66 kg (145.5 lb; 10.4 st) | Yuji Hoshino |
| Bantamweight | 62 kg (136.7 lb; 9.8 st) | Takeya Mizugaki |

## Title history
### Welterweight Championship

    Weight limit: 77 kg (169.8 lb; 12.1 st)
| No. | Name | Event | Date | Defenses |
| 1 | Yoshiyuki Yoshida def. Dan Hardy | Cage Force 5: Ariake, Tokyo, Japan | December 1, 2007 | |
| Yoshida vacated the title when he left Cage Force for the UFC. |||||

### Lightweight Championship

    Weight limit: 70 kg (154.3 lb; 11.0 st)
| No. | Name | Event | Date | Defenses |
| 1 | Artur Oumakhanov def. Kotetsu Boku | Cage Force 5: Ariake, Tokyo, Japan | December 1, 2007 | |
| Oumakhanov vactated the title when he left Cage Force for the Dream. |||||
| 2 | Mizuto Hirota def. Tomonari Kanomata | Cage Force 6: Ariake, Tokyo, Japan | April 5, 2008 | 1. draw. Katsuya Inoue at Cage Force EX Eastern Bound on February 28, 2009 |
| Hirota vactated the title when he left Cage Force for the Sengoku. |||||
| 3 | Kuniyoshi Hironaka def. Yoshihiro Koyama | Cage Force 12: Ariake, Tokyo, Japan | September 12, 2009 | |

### Featherweight Championship

    Weight limit: 66 kg (145.5 lb; 10.4 st)
| No. | Name | Event | Date | Defenses |
| 1 | Yuji Hoshino def. Akiyo Nishiura | Cage Force 9 Ariake, Tokyo, Japan | December 6, 2008 | |

### Bantamweight Championship

    Weight limit: 62 kg (136.7 lb; 9.8 st)
| No. | Name | Event | Date | Defenses |
| 1 | Takeya Mizugaki def. Masahiro Oishi | Cage Force 9 Ariake, Tokyo, Japan | December 6, 2008 | |
| Mizugaki vacated the title when he left Cage Force for the WEC. |||||

## Tournaments

| Event | Date | Weight class | Winner | Runner-up |
| Cage Force 5 | December 1, 2007 | Welterweight | Yoshiyuki Yoshida | Dan Hardy |
| Cage Force 5 | December 1, 2007 | Lightweight | Artur Oumakhanov | Kotetsu Boku |
| Cage Force 9 | December 6, 2008 | Featherweight | Yuji Hoshino | Akiyo Nishiura |
| Cage Force 9 | December 6, 2008 | Bantamweight | Takeya Mizugaki | Matake Oishi |

### Welterweight Tournament Bracket

| Quarterfinals | Quarterfinals | Semifinals | Semifinals | Final | Final |
| Yoshiyuki Yoshida | TKO | | | | |
| Matt Cain | 1 | | | | |
| Matt Cain | 1 | Yoshiyuki Yoshida | TKO | | |
| | | Akira Kikuchi | 1 | | |
| Akira Kikuchi | TKO | Akira Kikuchi | 1 | | |
| Jared Rollins | 2 | | | | |
| Jared Rollins | 2 | | | Yoshiyuki Yoshida | DQ |
| | | | | Dan Hardy | 2 |
| Hidetaka Monma | TKO | | | | | Dan Hardy | 2 |
| Janne Tulirinta | 1 | | | | |
| Janne Tulirinta | 1 | Hidetaka Monma | TKO | | |
| | | Dan Hardy | 3 | | |
| Daizo Ishige | DEC | Dan Hardy | 3 | | |
| Dan Hardy | 3 | | | | |

### Lightweight Tournament Bracket

| Opening round | Opening round | Quarterfinal | Quarterfinal | Semifinal | Semifinal | Final | Final | Final |
| Kotetsu Boku | SUB | | | | | | | |
| Jarkko Latomaki | 3 | | | | | | | |
| Jarkko Latomaki | 3 | Kotetsu Boku | DEC | | | | | |
| | | David Gardner | 3 | | | | | |
| David Gardner | | David Gardner | 3 | | | | | |
| BYE | | | | | | | | |
| BYE | | | | Kotetsu Boku | DEC | | | |
| | | | | Eiji Mitsuoka | 3 | | | |
| Takumi Nakayama | DEC | | | | | Eiji Mitsuoka | 3 | | | |
| Yoichi Fukumoto | 3 | | | | | | | |
| Yoichi Fukumoto | 3 | Takumi Nakayama | TKO | | | | | |
| | | Eiji Mitsuoka | 1 | | | | | |
| Eiji Mitsuoka | SUB | Eiji Mitsuoka | 1 | | | | | |
| Brian Cobb | 3 | | | | | | | |
| Brian Cobb | 3 | | | | | | Kotetsu Boku | DEC |
| | | | | | | | Artur Oumakhanov | 3 |
| Tomonari Kanomata | TKO | | | | | | | | Artur Oumakhanov | 3 |
| Jacob Sidic | 1 | | | | | | | |
| Jacob Sidic | 1 | Tomonari Kanomata | DEC | | | | | |
| | | Wataru Takahashi | 3 | | | | | |
| Wataru Takahashi | TKO | Wataru Takahashi | 3 | | | | | |
| In Seok Kim | 2 | | | | | | | |
| In Seok Kim | 2 | | | Tomonari Kanomata | TKO | | | |
| | | | | Artur Oumakhanov | 2 | | | |
| Watatu Miki | TKO | | | | | Artur Oumakhanov | 2 | | | |
| Yasunori Kanehara | 2 | | | | | | | |
| Yasunori Kanehara | 2 | Watatu Miki | DEC | | | | | |
| | | Artur Oumakhanov | 3 | | | | | |
| Kaynan Kaku | TKO | Artur Oumakhanov | 3 | | | | | |
| Artur Oumakhanov | 2 | | | | | | | |

### Featherweight Tournament Bracket

| Quarterfinals | Quarterfinals | Semifinals | Semifinals | Final | Final |
| Fanjin Son | TKO | | | | |
| Tomohiko Hori | 1 | | | | |
| Tomohiko Hori | 1 | Akiyo Nishiura | DEC | | |
| | | Fanjin Son | 3 | | |
| Akiyo Nishiura | KO | Fanjin Son | 3 | | |
| Jong Man Kim | 1 | | | | |
| Jong Man Kim | 1 | | | Akiyo Nishiura | DEC |
| | | | | Yuji Hoshino | 3 |
| Yuji Hoshino | DEC | | | | | Yuji Hoshino | 3 |
| Antonio Carvalho | 3 | | | | |
| Antonio Carvalho | 3 | Yuji Hoshino | SUB | | |
| | | Takeshi Yamazaki | 3 | | |
| Takeshi Yamazaki | SUB | Takeshi Yamazaki | 3 | | |
| Daiki Ozaki | 2 | | | | |

### Bantamweight Tournament Bracket

| Quarterfinals | Quarterfinals | Semifinals | Semifinals | Final | Final |
| Takeya Mizugaki | KO | | | | |
| Daichi Fujiwara | 1 | | | | |
| Daichi Fujiwara | 1 | Takeya Mizugaki | | | |
| | | BYE | | | |
| Taiyo Nakahara | TKO | BYE | | | |
| Ryota Uozumi | 2 | | | | |
| Ryota Uozumi | 2 | | | Takeya Mizugaki | TKO |
| | | | | Masahiro Oishi | 2 |
| Tetsu Suzuki | TKO | | | | | Masahiro Oishi | 2 |
| Katsuya Toida | 1 | | | | |
| Katsuya Toida | 1 | Tetsu Suzuki | DEC | | |
| | | Masahiro Oishi | 3 | | |
| Masahiro Oishi | TKO | Masahiro Oishi | 3 | | |
| Paul McVeigh | 2 | | | | |
^ 1: Taiyo Nakahara was set to face Takeya Mizugaki in the semifinal round of the Bantamweight tournament. However, Nakahara had to withdraw due to an injury and Mizugaki was given a bye into the Final round.