Nombre: Stefan Kostic
País: Australia
Fecha de nacimiento: 16.10.06, 19 años
Partidos totales: 60
ganar: 18
%: 30 %
País: Australia
Fecha de nacimiento: 16.10.06, 19 años
Partidos totales: 60
ganar: 18
%: 30 %
| año | resumen | Difícil | Arcilla | I. difícil | Alfombra | Césped | Acrílico |
| 2026 | 7/5 | 2/2 | 0/1 | 0/0 | 0/0 | 5/2 | 0/0 |
| 2025 | 10/16 | 0/0 | 10/16 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2024 | 1/14 | 0/2 | 1/12 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2023 | 0/6 | 0/0 | 0/6 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2022 | 0/1 | 0/0 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 |
| TOTAL | 18/42 | 2/4 | 11/36 | 0/0 | 0/0 | 5/2 | 0/0 |
| porc. % | 30 % | 33.33 % | 23.4 % | 0 % | 0 % | 71.43 % | 0 % |
Stefan Kostic / programado / pasado
| No se encontraron partidos |
Stefan Kostic form / año 2025 / superficie: Arcilla
Stefan Kostic / año 2025 / superficie: Arcilla
| 23.09.25 | calif. | Anton Arzhankin | Stefan Kostic | 6-3, 6-2 |  | match details |  M25 Zlatibor | Arcilla |
| 22.09.25 | c 2 | Stefan Kostic | Nikola Lulic | 7-5, 6-3 |  | match details | ||
| 21.09.25 | c 1 | Stefan Kostic | Andrej Paunovic | 6-2, 6-0 | | match details | ||
| 15.09.25 | c 2 | Aleksandar Mihailovic | Stefan Kostic | 7-63, 3-6, 10-7 | | match details | M15 Kursumlijska | Arcilla |
| 14.09.25 | c 1 | Stefan Kostic | Yanko Yankov | 6-1, 6-0 | | match details | ||
| 10.09.25 | 1er ronda | Juan Bautista Otegui | Stefan Kostic | 6-3, 6-1 | | match details | M15 Kursumlijska | Arcilla |
| 09.09.25 | calif. | Stefan Kostic | Mirko Lagasio | 7-61, 7-66 | | match details | ||
| 08.09.25 | c 2 | Stefan Kostic | Vitorio Stankov | 7-5, 6-1 | | match details | ||
| 07.09.25 | c 1 | Stefan Kostic | Justin Roberts | 6-2, 3-6, 10-6 | | match details | ||
| 31.08.25 | c 1 | Radoslav Shandarov | Stefan Kostic | 3-6, 6-4, 10-4 | | match details | M15 Kursumlijska | Arcilla |
| 19.08.25 | calif. | Filiberto Fumagalli | Stefan Kostic | 6-0, 6-4 | | match details | M15 Pirot | Arcilla |
| 18.08.25 | c 2 | Stefan Kostic | Alexandar Balj | 3-6, 6-2, 10-7 | | match details | ||
| 12.08.25 | calif. | George Lazarov | Stefan Kostic | 6-1, 2-6, 10-6 | | match details | M15 Pirot | Arcilla |
| 11.08.25 | c 2 | Stefan Kostic | Alexandar Balj | 6-2, 6-0 | | match details | ||
| 21.07.25 | c 2 | Ferdinand Livet Novkirichka | Stefan Kostic | 6-4, 6-2 | | match details | M15 Kursumlijska | Arcilla |
| 20.07.25 | c 1 | Stefan Kostic | Wayne Mcnicol | 6-3, 6-2 | | match details | ||
| 10.07.25 | 1er ronda | Aleksa Pisaric | Stefan Kostic | 6-4, 6-3 | | match details | M15 Kursumlijska | Arcilla |
| 22.06.25 | c 1 | Vasil Dimitrov | Stefan Kostic | 6-78, 6-3, 10-4 | | match details | M15 Kursumlijska | Arcilla |
| 18.06.25 | 1er ronda | Piet Luis Pinter | Stefan Kostic | 6-2, 6-1 | | match details | M15 Kursumlijska | Arcilla |
| 08.06.25 | c 1 | Nikola Djosic | Stefan Kostic | 7-65, 6-0 | | match details | M15 Kursumlijska | Arcilla |
| 02.06.25 | c 2 | Boris Butulija | Stefan Kostic | 6-2, 6-3 | | match details | M25 Belgrade | Arcilla |
| 01.06.25 | c 1 | Stefan Kostic | Nikola Lulic | 7-61, 6-2 | | match details | ||
| 19.05.25 | c 2 | Jiang Yi Qing | Stefan Kostic | 7-5, 4-6, 10-5 | | match details | M15 Kursumlijska | Arcilla |
| 14.05.25 | 1er ronda | Karim Bennani | Stefan Kostic | 6-2, 6-3 | | match details | M15 Kursumlijska | Arcilla |
| 27.04.25 | c 1 | Aljaz Jeran | Stefan Kostic | 6-2, 6-2 | | match details | M15 Kursumlijska | Arcilla |
| 20.04.25 | c 1 | Maties Torres Ramis | Stefan Kostic | 6-2, 4-6, 10-8 | | match details | M15 Kursumlijska | Arcilla |