| ITF - M15 Bucarest | 05/12 09:50 | 29 | Petr Nesterov v Niels Lootsma | 6-3,4-6,7-6 | |
| ITF - M15 Bucarest | 05/11 07:00 | 28 | Carlo A Caniato v Petr Nesterov | 4-6,3-6 | |
| ITF - M15 Bucarest | 05/10 07:00 | 27 | [477] Juan Bautista Otegui v Petr Nesterov [491] | 3-6,7-5,1-6 | |
| ITF - M15 Bucarest | 05/09 07:00 | 26 | Radu David Turcanu v Petr Nesterov | 6-0,2-6,1-6 | |
| ITF - M15 Bucarest | 05/08 07:15 | 25 | Samuil Konov v Petr Nesterov | 6-4,3-6,6-7 | |
| ITF - M25 Sharm El Sheikh | 04/11 11:35 | 26 | Matt Hulme v Petr Nesterov | 6-4,6-4 | |
| ITF - M25 Sharm El Sheikh | 04/10 08:00 | 25 | Finley Hall v Petr Nesterov | 2-6,2-6 | |
| ITF - M25 Sharm El Sheikh | 04/05 08:00 | 27 | Petr Nesterov v Karim-Mohamed Maamoun | 6-3,1-6,6-7 | |
| ITF - M25 Sharm El Sheikh | 04/04 09:30 | 26 | [412] Cem Ilkel v Petr Nesterov [490] | 3-6,2-6 | |
| ITF - M25 Sharm El Sheikh | 04/03 14:25 | 25 | Ilia Simakin v Petr Nesterov | 1-6,5-7 | |
| ITF - M15 Aktobe | 03/15 06:00 | 27 | Ilia Simakin v Petr Nesterov | 6-7,6-2,6-2 | |
| ITF - M15 Aktobe | 03/14 05:00 | 26 | Dax Donders v Petr Nesterov | 1-6,4-6 |
Petr Nesterov (Bulgarian: Пьотр Нестеров, born 7 March 2003) is a professional Bulgarian tennis player. He has a career-high ATP singles ranking of World No. 531 achieved on 18 March 2024, whilst his best doubles ranking is No. 383 achieved on 17 July 2023. Nesterov reached the final of the 2021 US Open Junior doubles with Ukrainian Viacheslav Bielinskyi.