| ITF M15 Sharm El Sheikh | 12/15 08:00 | 29 | [280] Marek Gengel v Ilia Simakin [351] | 6-1,6-1 | |
| ITF M15 Sharm El Sheikh | 12/14 08:00 | 28 | Alexandr Binda v Ilia Simakin | 3-6,6-3,3-6 | |
| ITF M15 Sharm El Sheikh | 12/13 08:00 | 27 | Stuart Parker v Ilia Simakin | 2-6,6-7 | |
| ITF M15 Sharm El Sheikh | 12/12 08:00 | 26 | Michael Shaw v Ilia Simakin | 1-6,0-6 | |
| ITF M15 Sharm El Sheikh | 12/11 12:15 | 25 | Valentin Kopeikin v Ilia Simakin | 2-6,4-6 | |
| ITF M15 Sharm El Sheikh | 12/08 08:00 | - | [351] Ilia Simakin v Marek Gengel [286] | 4-6,0-6 | |
| ITF M15 Sharm El Sheikh | 12/07 08:00 | 28 | Alexandr Binda v Ilia Simakin | 1-6,6-7 | |
| ITF M15 Sharm El Sheikh | 12/06 08:00 | 27 | Ilia Simakin v Evgeny Philippov | 7-6,4-6,6-4 | |
| ITF M15 Sharm El Sheikh | 12/05 08:00 | 26 | Ilia Simakin v Stuart Parker | 6-0,6-1 | |
| ITF M15 Sharm El Sheikh | 12/04 11:10 | 25 | Ilia Simakin v Lingxi Zhao | 6-4,6-2 | |
| ITF M15 Heraklion | 11/15 12:00 | 27 | [363] Ilia Simakin v Oleksii Krutykh [340] | 6-7,6-7 | |
| ITF M15 Heraklion | 11/14 10:50 | 26 | Ilia Simakin v Sasa Markovic | 6-0,6-3 |
Ilia Simakin (born 27 October 2003) is a Russian tennis player.
Simakin has a career high ATP singles ranking of No. 347 achieved on 18 November 2024. He also has a career high doubles ranking of No. 247 achieved on 21 October 2024.
Simakin has won 1 ATP Challenger doubles title at the 2024 President's Cup with Egor Agafonov.