| First | Last | Nickname | Ht. | Wt. | Reach | Stance | W | L | D | Belt |
|---|---|---|---|---|---|---|---|---|---|---|
| Dmitry | Sosnovskiy | Wicked Machine | 6' 3" | 240 lbs. | 77.0" | Orthodox | 11 | 0 | 0 | |
| Ben | Sosoli | Combat Wombat | 6' 0" | 265 lbs. | 72.0" | Southpaw | 7 | 3 | 0 | |
| Krzysztof | Soszynski | The Polish Experiment | 6' 1" | 205 lbs. | 77.0" | Open Stance | 26 | 12 | 1 | |
| George | Sotiropoulos | 5' 10" | 155 lbs. | 71.0" | Orthodox | 14 | 7 | 0 | ||
| Greg | Soto | 5' 11" | 170 lbs. | 73.0" | Orthodox | 9 | 4 | 0 | ||
| Alex | Soto | Extremo | 5' 8" | 135 lbs. | -- | Southpaw | 8 | 3 | 1 | |
| Joe | Soto | One Bad Mofo | 5' 6" | 135 lbs. | 65.0" | Orthodox | 18 | 7 | 0 | |
| Mario | Soto | Dr. Mario | 6' 0" | 145 lbs. | -- | 7 | 2 | 0 | ||
| Andre | Soukhamthath | The Asian Sensation | 5' 9" | 135 lbs. | 70.0" | Orthodox | 13 | 8 | 0 | |
| Mario | Sousa | Coracao Valente | 6' 3" | 185 lbs. | 79.0" | Orthodox | 15 | 3 | 0 | |
| Bobby | Southworth | 6' 2" | 205 lbs. | -- | Orthodox | 10 | 6 | 0 | ||
| Jacare | Souza | 6' 1" | 185 lbs. | 72.0" | Orthodox | 26 | 10 | 0 | ||
| Edimilson | Souza | Kevin | 6' 0" | 145 lbs. | 74.0" | Orthodox | 15 | 5 | 0 | |
| Livinha | Souza | The Brazilian Gangsta | 5' 3" | 115 lbs. | 63.0" | Orthodox | 14 | 4 | 0 | |
| Bruno | Souza | The Tiger | 5' 10" | 145 lbs. | 70.0" | Orthodox | 10 | 3 | 0 | |
| Ketlen | Souza | Esquentadinha | 5' 3" | 115 lbs. | 63.0" | Orthodox | 14 | 4 | 0 | |
| Charon | Spain | 5' 9" | 155 lbs. | -- | 14 | 26 | 0 | |||
| Chris | Spang | The Kiss | 6' 2" | 170 lbs. | -- | Orthodox | 6 | 3 | 0 | |
| Andreas | Spang | Sweet Swede | 6' 1" | 185 lbs. | -- | 9 | 3 | 0 | ||
| Ryan | Spann | Superman | 6' 5" | 205 lbs. | 79.0" | Orthodox | 21 | 10 | 0 | |
| Ron | Sparks | The Monster | 6' 5" | 265 lbs. | -- | 8 | 3 | 0 | ||
| Tommy | Speer | 5' 10" | 170 lbs. | 71.0" | Orthodox | 21 | 7 | 0 | ||
| Patrick | Speight | 6' 1" | 170 lbs. | -- | Orthodox | 7 | 3 | 0 | ||
| Sean | Spencer | Black Magic | 5' 10" | 170 lbs. | 74.0" | Orthodox | 12 | 6 | 0 |