Keisuke Onuma
| First Name : | Keisuke |
| Last name : | Onuma |
| Weight : | 180 lbs (82 kg) |
| Country : | Japan |
| Record : | 1 - 5 - 0 (Wins - Losses - Draws) |
| Wins : | 1 Draw (100%) |
| Losses : |
1 Submission (Triangle Choke) (20%) 2 Submission (Armbar) (40%) 1 NC (Cut Caused by Accidental Headbutt) (20%) 1 KO (20%) |
| Association : | Master Japan |
| Match Stats | ||||||
| Result | Opponent | Method | Event Title | Date | Round | Time |
| Win | Hidenobu Koike | Draw | ZST - ZST.22 | Nov 23, 2009 | 2 | 5:00 Sec |
| Lost | Kenji Nagai | Submission (Armbar) | ZST - ZST.16 | Feb 24, 2008 | 1 | 3:22 Sec |
| Lost | Eric Fought | KO | ZST - ZST.15: Fifth Anniversary | Nov 23, 2007 | 1 | 4:57 Sec |
| Lost | Tatsuhiko Nishizaka | NC (Cut Caused by Accidental Headbutt) | ZST - ZST.14 | Oct 7, 2007 | 1 | 1:22 Sec |
| Lost | Mitsuyoshi Nakai | Submission (Armbar) | ZST - ZST.13 | Jun 10, 2007 | 1 | 3:21 Sec |
| Lost | Ryotaro Endo | Submission (Triangle Choke) | ZST - ZST.12 | Feb 12, 2007 | 1 | 2:37 Sec |