| First | Last | Nickname | Ht. | Wt. | Reach | Stance | W | L | D | Belt |
|---|---|---|---|---|---|---|---|---|---|---|
| Kyle | Sturgeon | 6' 3" | 225 lbs. | -- | Switch | 0 | 1 | 0 | ||
| Tatiana | Suarez | 5' 5" | 115 lbs. | 66.0" | Southpaw | 11 | 0 | 0 | ||
| Masanori | Suda | 5' 9" | 183 lbs. | -- | Orthodox | 22 | 11 | 3 | ||
| Genki | Sudo | Neo-Samurai | 5' 9" | 155 lbs. | -- | Orthodox | 15 | 4 | 2 | |
| Lucasz | Sudolski | 6' 4" | 205 lbs. | 75.0" | Orthodox | 8 | 1 | 0 | ||
| Daisuke | Sugie | Amazon | 5' 6" | 160 lbs. | -- | Orthodox | 10 | 8 | 1 | |
| Takashi | Sugiura | 5' 11" | 225 lbs. | -- | Southpaw | 1 | 3 | 0 | ||
| Naho | Sugiyuma | Sugi Rock | 5' 1" | 105 lbs. | -- | 12 | 5 | 0 | ||
| George | Sullivan | The Silencer | 6' 0" | 170 lbs. | 73.0" | Orthodox | 17 | 7 | 0 | |
| Amar | Suloev | 5' 9" | 183 lbs. | -- | Orthodox | 24 | 7 | 0 | ||
| Magomed | Sultanakhmedov | 6' 2" | 185 lbs. | -- | Southpaw | 18 | 6 | 0 | ||
| Justin | Sumter | 6' 2" | 185 lbs. | 80.0" | Southpaw | 7 | 3 | 0 | ||
| Sumudaerji | The Tibetan Eagle | 5' 8" | 125 lbs. | 72.0" | Southpaw | 16 | 6 | 0 | ||
| Rama | Supandhi | Hellboy | 5' 5" | 125 lbs. | 66.0" | Southpaw | 8 | 4 | 0 | |
| Aji | Susilo | 5' 10" | 155 lbs. | -- | 6 | 4 | 0 | |||
| Jason | Suttie | Nobunaga | 6' 0" | 210 lbs. | -- | Orthodox | 0 | 1 | 0 | |
| Joel | Sutton | 5' 11" | 205 lbs. | -- | Orthodox | 2 | 4 | 1 | ||
| Chad | Sutton | 6' 1" | 185 lbs. | -- | 2 | 2 | 0 | |||
| Danilo | Suzart | 6' 0" | 260 lbs. | -- | Orthodox | 9 | 2 | 0 | ||
| Martin | Svensson | 6' 1" | 155 lbs. | -- | 15 | 6 | 0 | |||
| Daniel | Swain | 5' 9" | 145 lbs. | 70.0" | Orthodox | 20 | 10 | 1 | ||
| Cub | Swanson | 5' 8" | 145 lbs. | 70.0" | Orthodox | 29 | 14 | 0 | ||
| Mike | Swick | Quick | 6' 1" | 170 lbs. | 77.0" | Orthodox | 15 | 6 | 0 | |
| Floyd | Sword | 6' 0" | 185 lbs. | -- | Orthodox | 12 | 3 | 0 |