4,297 fighters indexed
| Fighter | IQ | Division | Record | Stance | Ht | Reach | SLpM | Acc | TD | Fin% |
|---|---|---|---|---|---|---|---|---|---|---|
| In Su Hwang | 52 | — | 8-2-0 | Orthodox | 5' 11" | 74" | 2.47 | 46% | — | — |
| Ion Cherdivara | 49 | Light Heavyweight | 1-1-0 | — | -- | — | — | — | — | — |
| Ion Cutelaba | 56 | Heavyweight | 20-11-1 | Southpaw | 6' 1" | 75" | 4.23 | 43% | 3.8 | 30% |
| Iony Razafiarison | 53 | — | 2-1-0 | — | 5' 3" | — | 1.20 | 42% | 2.0 | — |
| Iouri Kotchkine | 42 | — | 7-4-1 | Orthodox | 6' 2" | — | 0.67 | 38% | — | — |
| Irene Aldana | 55 | Bantamweight | 15-8-0 | Orthodox | 5' 9" | 68" | 5.19 | 39% | 0.1 | 27% |
| Irina Alekseeva | 46 | Bantamweight | 5-4-0 | Orthodox | 5' 8" | 67" | 3.42 | 38% | 0.4 | 20% |
| Irwin Rivera | 54 | — | 10-6-0 | Southpaw | 5' 6" | 67" | 3.36 | 44% | 1.0 | — |
| Isaac Dulgarian | 61 | — | 7-2-0 | Orthodox | 5' 7" | 71" | 2.99 | 63% | 4.6 | 29% |
| Isaac Thomson | 54 | Featherweight | 9-3-0 | — | 5' 10" | 69" | 1.40 | 44% | 4.0 | — |
| Isaac Vallie-Flagg | 56 | — | 16-7-1 | Orthodox | 5' 8" | 70" | 5.56 | 47% | 0.2 | — |
| Isabela de Padua | 53 | — | 5-2-0 | Orthodox | 5' 3" | 64" | 1.00 | 35% | 2.0 | — |
| Isaiah Hill | 57 | — | 5-7-1 | — | 5' 10" | — | 4.84 | 50% | — | 20% |
| Isao Kobayashi | 58 | — | 21-4-4 | — | 5' 8" | — | 1.01 | 33% | 2.2 | — |
| Isi Fitikefu | 62 | — | 6-0-0 | — | 5' 10" | — | — | — | — | — |
| Isis Verbeek | 54 | — | 5-2-0 | Orthodox | 5' 4" | 64" | 3.13 | 43% | — | — |
| Islam Dulatov | 67 | — | 12-1-0 | Orthodox | 6' 3" | 75" | 8.78 | 54% | 2.2 | 17% |
| Islam Makhachev | 85 | Welterweight | 28-1-0 | Southpaw | 5' 10" | 70" | 2.45 | 58% | 3.1 | 39% |
| Islem Masraf | 46 | — | 3-1-0 | Southpaw | 6' 0" | 74" | 0.68 | 20% | — | — |
| Ismael Bonfim | 64 | Lightweight | 20-6-0 | Orthodox | 5' 8" | 71" | 5.51 | 54% | 1.1 | 5% |
| Ismail Naurdiev | 66 | — | 25-8-0 | Orthodox | 5' 10" | 74" | 3.66 | 52% | 1.5 | 4% |
| Israel Adesanya | 63 | Middleweight | 24-6-0 | Switch | 6' 4" | 80" | 4.03 | 48% | 0.1 | 21% |
| Israel Giron | 63 | — | 19-5-0 | — | 5' 8" | — | — | — | — | — |
| Issa Isakov | 50 | — | 10-3-0 | Orthodox | 5' 9" | 70" | 1.93 | 36% | — | — |
| Issac DeJesus | 54 | — | 12-7-1 | — | -- | — | — | — | — | 8% |
| Issei Tamura | 45 | — | 10-8-0 | Orthodox | 5' 5" | 63" | 1.89 | 53% | 0.9 | 10% |
| Istela Nunes | 51 | — | 6-6-0 | Orthodox | 5' 4" | 66" | 4.28 | 47% | — | — |
| Iuri Alcantara | 63 | Bantamweight | 35-10-0 | Southpaw | 5' 9" | 71" | 2.72 | 45% | 1.4 | 17% |
| Ivan Cole | 43 | Bantamweight | 2-3-0 | — | 5' 9" | — | 2.68 | 36% | — | — |
| Ivan Erslan | 55 | Heavyweight | 14-6-0 | Orthodox | 6' 2" | 72" | 2.55 | 46% | 0.5 | — |
| Ivan Gnizditskiy | 61 | — | 5-0-0 | — | -- | — | — | — | — | — |
| Ivan Jorge | 68 | — | 27-7-0 | Orthodox | 5' 9" | 73" | 3.41 | 49% | 1.6 | — |
| Ivan Lopez | 63 | — | 14-3-1 | Southpaw | 5' 6" | — | 0.90 | 26% | — | — |
| Ivan Menjivar | 55 | — | 25-12-0 | Orthodox | 5' 6" | 64" | 2.78 | 37% | 0.6 | 12% |
| Ivan Salaverry | 58 | — | 14-9-0 | Orthodox | 6' 0" | — | 3.01 | 47% | 0.5 | 29% |
| Ivan Serati | 47 | — | 12-4-0 | Orthodox | 6' 0" | — | 0.86 | 26% | — | — |
| Ivan Shtyrkov | 75 | — | 15-0-1 | Orthodox | 6' 0" | 74" | — | — | — | — |
| Ivan Valenzuela | 52 | — | 8-2-0 | Orthodox | 6' 2" | 77" | — | — | — | — |
| Ivana Petrovic | 55 | — | 7-3-0 | Southpaw | 5' 8" | 70" | 1.91 | 41% | 2.1 | 14% |
| Iwo Baraniewski | 68 | Heavyweight | 8-0-0 | Orthodox | 6' 0" | 73" | 15.77 | 70% | — | 38% |
| Izabela Badurek | 56 | Women's Strawweight | 6-3-0 | Orthodox | 5' 5" | — | 3.74 | 71% | 1.8 | — |
| J.T Taylor | 53 | — | 7-7-0 | — | 5' 10" | — | 3.17 | 80% | 4.0 | 14% |
| Jacare Souza | 64 | — | 26-10-0 | Orthodox | 6' 1" | 72" | 2.53 | 47% | 2.6 | 58% |
| Jack Becker | 48 | Lightweight | 13-6-0 | Orthodox | 5' 10" | 71" | 1.01 | 39% | 1.7 | — |
| Jack Cartwright | 58 | Bantamweight | 10-1-0 | Orthodox | 5' 9" | 68" | 0.80 | 38% | 6.0 | — |
| Jack Congdon | 53 | Welterweight | 7-2-0 | Switch | 6' 2" | 75" | 5.29 | 35% | — | — |
| Jack Della Maddalena | 75 | Welterweight | 18-3-0 | Switch | 5' 11" | 73" | 5.57 | 51% | 0.1 | 28% |
| Jack Duffy | 65 | — | 7-1-0 | Switch | 5' 7" | 69" | 5.07 | 69% | — | — |
| Jack Hermansson | 60 | — | 24-10-0 | Orthodox | 6' 1" | 77" | 5.15 | 45% | 1.5 | 25% |
| Jack Jenkins | 64 | — | 14-4-0 | Switch | 5' 7" | 68" | 4.48 | 61% | 2.0 | 14% |