| Name | Steam ID | Records | WRs |
|---|---|---|---|
| Iroslav | 76561197978253638 | 1 | 0 |
| irotibo | 76561198044703791 | 1 | 0 |
| IRQ3 | 76561198391623910 | 7 | 0 |
| IrrationalExuberance | 76561198046643624 | 5 | 0 |
| [☾★ ]IrResistible{♥‿♥} | 76561198170841733 | 1 | 0 |
| Iruk | 76561198044573327 | 1 | 0 |
| i r winner | 76561198098413665 | 1 | 0 |
| IsaacElite10 | 76561198030652150 | 1 | 0 |
| IsaacNewton | 76561198202341684 | 1 | 0 |
| isaBadMutha | 76561197968985825 | 3 | 0 |
| Isads | 76561198125622555 | 1 | 0 |
| IsAKoV | 76561198286211083 | 1 | 0 |
| i|SaLeX | 76561197996518457 | 5 | 0 |
| isalingebruik | 76561198032630476 | 1 | 0 |
| iSalooly | 76561198142198535 | 3 | 0 |
| ís a mental | 76561198017349469 | 1 | 0 |
| ISC kristoff90 | 76561198035382647 | 11 | 0 |
| Isdalek | 76561198075743595 | 1 | 0 |
| isevendeuce | 76561199094740851 | 1 | 0 |
| ish | 76561198064761224 | 7 | 0 |
| i s h i | 76561198090519649 | 2 | 0 |
| I shoot head | 76561198883957628 | 1 | 0 |
| ISIS`Cube | 76561198001512214 | 1 | 0 |
| iskinfoiskinfo | 76561198054668801 | 1 | 0 |
| ISLAK ATES | 76561198308698047 | 1 | 0 |
| islandinthenet | 76561198354281013 | 1 | 0 |
| isn | 76561198176845923 | 1 | 0 |
| isN4N | 76561198049186180 | 2 | 0 |
| isola_71 | 76561198075941182 | 1 | 0 |
| Isolat3r | 76561197970790219 | 1 | 0 |
| iSolovev | 76561198259156083 | 1 | 0 |
| Isonoe | 76561198105218481 | 2 | 0 |
| israel_r™ | 76561198362872048 | 9 | 0 |
| Israfil | 76561198065318291 | 30 | 0 |
| Israiled | 76561197993303301 | 1 | 0 |
| issa8484 | 76561198082267374 | 1 | 0 |
| Issera | 76561198057748284 | 999 | 0 |
| issues37 | 76561198213881080 | 65 | 0 |
| istoriakaz | 76561198069858015 | 4 | 0 |
| istwo | 76561198064566138 | 4966 | 11 |
| isuckattracking | 76561198941029696 | 5 | 0 |
| I sucked, I got fucked | 76561198036322677 | 1 | 0 |
| isunderer | 76561198051655469 | 1 | 0 |
| Iswenzz | 76561198163403316 | 71 | 1 |
| [ITA]=BIA=Fla | 76561197972501642 | 2 | 0 |
| Itachi | 76561198144390785 | 1 | 0 |
| ITACHI | 76561198024060046 | 1 | 0 |
| [ITA] Clapawa | 76561198159273040 | 2 | 0 |
| [ITA] DiscoHalo0 [YT] | 76561198146045712 | 1 | 0 |
| ITALIAN GUY | 76561197985810868 | 1 | 0 |