4,297 fighters indexed
| Fighter | IQ | Division | Record | Stance | Ht | Reach | SLpM | Acc | TD | Fin% |
|---|---|---|---|---|---|---|---|---|---|---|
| Rolando Perez | 52 | — | 7-5-2 | Orthodox | 5' 8" | — | 4.23 | 36% | — | — |
| Roldan Sangcha'an | 55 | — | 4-2-0 | Orthodox | 5' 4" | — | 2.71 | 46% | 1.9 | — |
| Rolles Gracie | 52 | — | 8-4-0 | Orthodox | 6' 4" | — | 2.30 | 32% | 2.3 | — |
| Roman Bogatov | 56 | Lightweight | 10-1-0 | Orthodox | 5' 8" | 73" | 3.33 | 42% | 1.0 | — |
| Roman Dolidze | 63 | Middleweight | 15-5-0 | Orthodox | 6' 2" | 76" | 3.19 | 41% | 1.2 | 33% |
| Roman Kopylov | 61 | Middleweight | 14-5-0 | Southpaw | 6' 0" | 75" | 4.59 | 50% | 1.1 | 36% |
| Roman Mitichyan | 47 | — | 8-3-0 | Orthodox | 5' 10" | — | 0.26 | 16% | 1.9 | 13% |
| Roman Salazar | 53 | — | 10-6-0 | Orthodox | 5' 7" | — | 1.95 | 39% | 1.8 | — |
| Roman Zentsov | 55 | — | 18-12-0 | Orthodox | 6' 1" | — | 1.18 | 36% | 1.6 | 11% |
| Romie Aram | 58 | Welterweight | 7-1-0 | Orthodox | 5' 10" | — | 1.80 | 35% | 2.5 | — |
| Ron Faircloth | 49 | — | 33-20-0 | Orthodox | 5' 9" | — | 0.39 | 40% | — | — |
| Ron Fields | 44 | — | 28-32-1 | Orthodox | 6' 2" | — | 0.33 | 33% | — | — |
| Ron Henderson | 47 | — | 4-3-0 | — | 5' 10" | — | 2.53 | 25% | 1.0 | — |
| Ron Keslar | 57 | — | 11-9-0 | — | -- | — | — | — | — | 9% |
| Ron Sparks | 57 | — | 8-3-0 | — | 6' 5" | — | — | — | — | — |
| Ron Stallings | 58 | — | 14-8-0 | Southpaw | 6' 2" | 75" | 3.22 | 60% | — | — |
| Ron Waterman | 54 | — | 16-6-2 | Orthodox | 6' 2" | — | 0.84 | 50% | 4.2 | 19% |
| Ronal Siahaan | 52 | — | 7-1-0 | Southpaw | 5' 7" | 71" | 0.63 | 66% | — | — |
| Ronald Carillo | 53 | Flyweight | 4-2-0 | — | -- | — | — | — | — | 25% |
| Ronald Jhun | 53 | — | 24-26-2 | Orthodox | 5' 11" | — | 1.45 | 57% | 1.8 | — |
| Ronaldo Candido | 61 | Flyweight | 6-0-0 | Southpaw | 5' 6" | — | 1.67 | 42% | 8.0 | — |
| Ronaldo Rodriguez | 75 | — | 17-3-0 | Orthodox | 5' 6" | 65" | 2.71 | 43% | 1.1 | 6% |
| Ronda Rousey | 65 | — | 12-2-0 | Orthodox | 5' 7" | 66" | 4.17 | 52% | 6.3 | 83% |
| Rongzhu | 64 | — | 27-6-0 | Orthodox | 5' 9" | 71" | 6.02 | 51% | 1.4 | 11% |
| Ronnie Lawrence | 59 | — | 8-2-0 | Switch | 5' 8" | 68" | 2.78 | 56% | 6.8 | 13% |
| Ronny Markes | 63 | — | 17-5-0 | Orthodox | 6' 1" | 75" | 2.17 | 53% | 3.1 | — |
| Rony Jason | 52 | — | 14-7-0 | Orthodox | 5' 7" | 73" | 2.04 | 44% | 0.6 | 21% |
| Ronys Torres | 75 | Lightweight | 35-5-0 | Orthodox | 5' 7" | — | 0.87 | 26% | 4.0 | — |
| Roosevelt Roberts | 54 | — | 12-6-0 | Orthodox | 6' 2" | 73" | 2.84 | 43% | 1.2 | 25% |
| Roque Conceicao | 51 | Flyweight | 10-3-0 | Orthodox | 5' 4" | 67" | 2.73 | 40% | — | — |
| Roque Martinez | 54 | — | 15-8-2 | Orthodox | 5' 10" | 72" | 3.28 | 53% | 0.4 | — |
| Rory MacDonald | 64 | — | 19-4-0 | Orthodox | 6' 0" | 76" | 3.75 | 42% | 1.8 | 21% |
| Rory Markham | 47 | — | 17-6-0 | Orthodox | 6' 0" | 71" | 1.98 | 21% | — | 6% |
| Rory Singer | 51 | — | 11-9-0 | Orthodox | 6' 2" | 77" | 2.55 | 39% | 0.4 | 9% |
| Rose Conceicao | 55 | Women's Strawweight | 7-1-0 | Orthodox | 4' 7" | 65" | 3.07 | 28% | — | — |
| Rose Namajunas | 57 | Flyweight | 15-8-0 | Orthodox | 5' 5" | 65" | 3.50 | 41% | 1.5 | 33% |
| Roshan Mainam | 55 | — | 6-3-0 | — | -- | — | — | — | — | — |
| Roshaun Jones | 46 | Bantamweight | 2-6-0 | — | 5' 8" | — | — | — | — | — |
| Rosi Sexton | 52 | — | 13-5-0 | Orthodox | 5' 3" | — | 3.31 | 39% | 0.8 | — |
| Ross Ebanez | 62 | — | 20-10-0 | Southpaw | 5' 9" | — | 0.74 | 50% | 3.7 | — |
| Ross Pearson | 53 | — | 20-16-0 | Orthodox | 5' 8" | 69" | 3.68 | 40% | 0.7 | 25% |
| Ross Pointon | 41 | — | 6-17-0 | Orthodox | 5' 8" | — | 2.62 | 23% | 1.2 | — |
| Rostem Akman | 52 | Welterweight | 6-2-0 | Switch | 5' 10" | 72" | 1.80 | 25% | 1.0 | — |
| Rousimar Palhares | 65 | — | 19-8-0 | Orthodox | 5' 8" | 71" | 1.75 | 51% | 3.9 | 58% |
| Roxanne Modafferi | 44 | — | 25-21-0 | Orthodox | 5' 7" | 69" | 3.35 | 30% | 1.4 | 4% |
| Roy Boughton | 57 | Light Heavyweight | 14-8-0 | — | 6' 0" | — | — | — | — | — |
| Roy Jones | 54 | — | 7-5-0 | — | -- | — | — | — | — | — |
| Roy Nelson | 50 | — | 22-14-0 | Orthodox | 6' 0" | 73" | 2.18 | 36% | 1.1 | 36% |
| Roybert Echeverria | 63 | — | 7-1-0 | Switch | 5' 5" | 67" | 2.95 | 53% | — | — |
| Royce Alger | 52 | Light Heavyweight | 3-2-0 | Orthodox | 5' 10" | — | — | — | — | — |