Poids Légers Hommes
 | Sidney Outlaw | 4-2-0 REC | #857 |  |
 | Simeon Kapuya | 0-1-0 REC | #7196 |  |
 | Simone Manno | 0-1-0 REC | #6887 |  |
 | Simone Patrizi | 2-4-0 REC | #3020 | |
 | Sitik Muduev | #7334 |  | |
 | Sodiq Yusuff | 6-4-0 UFC | #982 |  |
 | Sofiane El Fatni | 1-1-0 REC | #1758 |  |
 | Solomon Renfro | 1-4-0 REC | #3853 | |
 | Soren Bak | 1-0-0 REC | #4794 |  |
 | Soslan Gagloev | 4-2-0 REC | #2508 | |
 | Souhil Tairi | 2-3-0 REC | #1777 |  |
 | Spencer Fisher | 9-8-0 UFC | #1070 | |
 | Stanley Dorsainvil | 1-0-0 REC | #7005 | |
 | Stefan Zuparic | 1-1-0 REC | #5952 |  |
 | Stefano Catacoli | 1-2-0 REC | #5687 |  |
 | Steve Collins | 4-0-0 REC | #788 | |
 | Steve Lopez | 0-2-0 UFC | #5280 | |
 | Steven Ray | 7-4-0 UFC | #884 |  |
 | Sulo Hilaj | 0-1-0 REC | #4677 |  |
 | Sung Chan Hong | 0-1-0 REC | #6055 |  |