Romania
22.03.95, 30 years
22.03.95, 30 years
Country
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
Bulgaria
21.01.98, 27 years
21.01.98, 27 years
Cosmin Ontica vs. Rumen Lazov - head to head matches
| 08.06.15 | q 2 | Cosmin Ontica | Rumen Lazov | 6-2, 6-0 | match details |  Bulgaria F1 | Clay |
Cosmin Ontica form & Rumen Lazov form
Cosmin Ontica - last matches
 M15 Constanta - Clay | ||||
| 29.05.23 q 2 | vs. Giuseppe Tresca | 5-7, 0-1, - Cosmin Ontica - retired |  | match details |
| 28.05.23 q 1 | vs. Nicola Ion | 6-2, 6-1 |  | match details |
| M15 Constanta - Clay | ||||
| 04.09.22 q 1 | vs. Nicolas Hollender | 6-3, 3-6, 4-10 | | match details |
| M15 Bucharest - Clay | ||||
| 23.05.22 qual. | vs. Alexandru Luca | 7-63, 6-1 | | match details |
| 22.05.22 q 1 | vs. Stefan Eduard Dumitru | 6-1, 6-0 | | match details |
| 22.05.22 q 2 | vs. Louis Allen | 7-5, 3-0, Louis Allen - retired | | match details |
| M25 Pitesti - Clay | ||||
| 03.08.21 qual. | vs. Bogdan Pavel | 2-6, 0-1, - Cosmin Ontica - retired | | match details |
| 02.08.21 q 2 | vs. Nikola Kolyachev | 5-7, 6-0, 10-4 | | match details |
| 01.08.21 q 1 | vs. Laurentiu Mandocescu | 6-2, 6-1 | | match details |
| M15 Curtea - Clay | ||||
| 14.09.20 q 2 | vs. Bruno Pujol Navarro | 4-6, 5-7 | | match details |
| 13.09.20 q 1 | vs. Gheorghe Claudiu Schinteie | 6-1, 3-6, 10-7 | | match details |
| M15 Bucharest - Clay | ||||
| 07.09.20 q 2 | vs. Cezar Cretu | 6-4, 6-73, 4-10 | | match details |
| 06.09.20 q 1 | vs. Tudor Vlad Vasilache | 6-3, 6-1 | | match details |
| M15 Burgas - Clay | ||||
| 06.10.19 q 1 | vs. Yanaki Milev | 3-4, - Cosmin Ontica - retired | | match details |
| M15 Varna - Clay | ||||
| 12.09.19 2nd round | vs. Karlo Kranic | 5-7, 1-6 | | match details |
| 11.09.19 1st round | vs. Nir Vodavoz | 6-3, 6-2 | | match details |
| 09.09.19 q 1 | vs. Vincent Chen | 6-1, 6-3 | | match details |
| 09.09.19 qual. | vs. Hristo Valeov | 6-4, 6-2 | | match details |
| M15 Curtea - Clay | ||||
| 19.08.19 q 1 | vs. Adrian Barbu | 6-2, 2-6, 10-12 | | match details |
| M25 Pitesti - Clay | ||||
| 12.08.19 q 1 | vs. Alexandru Cristian Bodnariuk | 4-6, 1-6 | | match details |
| M15 Chitila - Clay | ||||
| 30.07.19 qual. | vs. Jake Hersey | 1-6, 0-2, - Cosmin Ontica - retired | | match details |
| 29.07.19 q 1 | vs. Gilad Tamar | 6-0, 6-4 | | match details |
| M15 Plovdiv - Clay | ||||
| 03.06.19 q 1 | vs. Milen Ianakiev | 6-1, 4-6, 6-10 | | match details |
| M25+H Bacau - Clay | ||||
| 28.05.19 qual. | vs. Luca Tomasetto | 3-6, 6-2, 6-10 | | match details |
| 27.05.19 q 1 | vs. Eduard Vlasceanu | 6-2, 6-3 | | match details |
| M15 Bucharest - Clay | ||||
| 21.05.19 qual. | vs. Albert Alcaraz Ivorra | 0-6, 2-6 | | match details |
| 20.05.19 q 1 | vs. Yanik Kaelin | 6-2, 6-1 | | match details |
| M15 Sozopol - Hard | ||||
| 07.05.19 qual. | vs. Roee Benya | 6-76, 6-1, 8-10 | | match details |
| 06.05.19 q 1 | vs. Luka Stojanovic (SRB) | 6-0, 6-1 | | match details |
 M15 Antalya - Clay | ||||
| 16.04.19 qual. | vs. Alexander Shevchenko | 4-6, 0-6 | | match details |
Rumen Lazov - last matches
| Bulgaria F2 - Clay | ||||
| 23.05.16 q 1 | vs. Alexander Braun | 2-6, 0-6 | | match details |
| Bulgaria F1 - Hard | ||||
| 16.05.16 q 2 | vs. Aliaksandr Prudnikau | 0-6, 1-6 | | match details |
| Bulgaria F3 - Clay | ||||
| 22.06.15 q 1 | vs. Andres Quiroga | 5-7, 1-6 | | match details |
| Bulgaria F2 - Clay | ||||
| 15.06.15 q 2 | vs. Andres Quiroga | 2-6, 2-6 | | match details |
| Bulgaria F1 - Clay | ||||
| 08.06.15 q 2 | vs. Cosmin Ontica | 2-6, 0-6 | | match details |