| UTR Pro Bucharest | 06/09 08:22 | - | Petr Nesterov v Stefan A Andreescu | 6-7,6-1,6-2 | |
| UTR Pro Bucharest | 06/08 06:00 | - | Petr Nesterov v Valentin Vanta | 6-7,6-1,6-3 | |
| UTR Pro Bucharest | 06/06 09:36 | - | Petr Nesterov v Cezar Gabriel Papoe | 7-6,4-6,6-3 | |
| UTR Pro Bucharest | 06/05 06:00 | - | Petr Nesterov v Gergely Madarasz | 6-7,6-3,6-7 | |
| UTR Pro Bucharest | 06/04 08:55 | - | Petr Nesterov v Vasil Dimitrov | 6-2,6-3 | |
| UTR Pro Bucharest | 06/03 10:30 | - | Petr Nesterov v Michael Minasyan | 6-4,6-3 | |
| ITF M15 Constanta | 05/31 09:25 | 27 | [427] Gabi Adrian Boitan v Petr Nesterov [491] | 7-5,6-3 | |
| ITF M15 Constanta | 05/30 07:00 | 26 | Alessandro Bellifemine v Petr Nesterov | 3-6,6-7 | |
| ITF M15 Constanta | 05/29 16:25 | 25 | Stefan A Andreescu v Petr Nesterov | 6-3,1-6,5-7 | |
| ITF M15 Bucharest | 05/26 08:30 | 29 | Elliot Benchetrit v Petr Nesterov | 1-6,2-6 | |
| ITF M15 Bucharest | 05/25 08:00 | 28 | [489] Petr Nesterov v Gabi Adrian Boitan [461] | Retired | |
| ITF M15 Bucharest | 05/24 08:00 | 27 | Petr Nesterov v Ioan Alexandru Chirita | 4-6,6-3,6-1 |
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. 527 achieved on 22 April 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.