Dong Sik Yoon
| First Name : | Dong |
| Last name : | Sik Yoon |
| Weight : | 199 lbs (90 kg) |
| Birth Date : | 1972-08-24 |
| Country : | South Korea |
| Record : | 5 - 7 - 0 (Wins - Losses - Draws) |
| Wins : |
1 Decision (Split) (20%) 1 Decision (Unanimous) (20%) 3 Submission (Armbar) (60%) |
| Losses : |
1 Submission (Foot Injury) (14.29%) 3 Decision (Unanimous) (42.86%) 1 TKO (Punches) (14.29%) 1 Decision (Unaminous) (14.29%) 1 KO (Punches) (14.29%) |
| Association : | Team Yoon |
| Match Stats | ||||||
| Result | Opponent | Method | Event Title | Date | Round | Time |
| Win | Tarec Saffiedine | Decision (Split) | Dream 12 - The Cage of the Rising Sun | Oct 25, 2009 | 3 | 5:00 Sec |
| Lost | Jesse Taylor | Submission (Foot Injury) | Dream 10 - Welterweight Grand Prix 2009 Final | Jul 20, 2009 | 1 | 1:02 Sec |
| Lost | Andrews Nakahara | TKO (Punches) | Dream 6 - Middleweight Grand Prix 2008 Final | Sep 23, 2008 | 2 | 0:30 Sec |
| Lost | Gegard Mousasi | Decision (Unanimous) | Dream 4 - Middleweight Grand Prix 2008 Quarterfinals | Jun 15, 2008 | 2 | 5:00 Sec |
| Win | Shungo Oyama | Decision (Unanimous) | Dream 2 - Middleweight Grand Prix 2008 Opening Round | Apr 29, 2008 | 2 | 5:00 Sec |
| Lost | Murilo Bustamante | Decision (Unanimous) | PRIDE - Bushido 13 | Nov 5, 2006 | 2 | 5:00 Sec |
| Lost | Quinton Jackson | Decision (Unanimous) | PRIDE 31 - Dreamers | Feb 26, 2006 | 3 | 5:00 Sec |
| Lost | Makoto Takimoto | Decision (Unaminous) | PRIDE 30 - Fully Loaded | Oct 23, 2005 | 3 | 5:00 Sec |
| Lost | Kazushi Sakuraba | KO (Punches) | PRIDE - Total Elimination 2005 | Apr 23, 2005 | 1 | 0:38 Sec |