Istanbul 4 challenger 2026 (Turkey)
(107,000 $, clay, men)
| Start | Round | S | 1 | 2 | 3 | 4 | 5 | H | A | ||
| 18.05. 12:15 |
Q-R16 | Sanchez Quilez (3) | 2 | 6 | 6 | 1.28 | 3.42 | info | |||
| Bennani (8) | 0 | 3 | 2 | ||||||||
| 18.05. 12:15 |
Q-R16 | Poullain (2) | 2 | 7 | 2 | 6 | 1.41 | 2.62 | info | ||
| Orlov (7) | 1 | 5 | 6 | 4 | |||||||
| 18.05. 12:10 |
Q-R16 | Kravchenko (12) | 2 | 4 | 6 | 7 | 2.31 | 1.55 | info | ||
| Dutra da Silva (1) | 1 | 6 | 1 | 5 | |||||||
| 18.05. 10:10 |
Q-R16 | Saraiva Dos Santos (5) | 2 | 6 | 6 | 1.21 | 3.64 | info | |||
| Anavatan | 0 | 4 | 3 | ||||||||
| 18.05. 10:10 |
Q-R16 | Matusevich (6) | 2 | 6 | 6 | 1.04 | 8.62 | info | |||
| Kosaner | 0 | 2 | 1 | ||||||||
| 18.05. 10:10 |
Q-R16 | Ayeni (4) | 2 | 6 | 6 | 2.52 | 1.46 | info | |||
| Bennani (10) | 0 | 3 | 4 | ||||||||
| 17.05. 17:30 |
Q-1R | Bennani (8) | 2 | 6 | 65 | 6 | 1.19 | 4.24 | info | ||
| Braynin | 1 | 3 | 7 | 3 | |||||||
| 17.05. 16:25 |
Q-1R | Kravchenko (12) | 2 | 6 | 6 | 1.14 | 4.67 | info | |||
| Dzhavakian | 0 | 0 | 2 | ||||||||
| 17.05. 16:15 |
Q-1R | Poullain (2) | 2 | 6 | 6 | 1.27 | 3.46 | info | |||
| Krajci | 0 | 4 | 3 | ||||||||
| 17.05. 15:35 |
Q-1R | Sanchez Quilez (3) | 2 | 7 | 6 | 1.22 | 3.85 | info | |||
| De Krom | 0 | 5 | 0 | ||||||||
| 17.05. 14:35 |
Q-1R | Dutra da Silva (1) | 2 | 7 | 6 | 1.24 | 3.65 | info | |||
| Klok | 0 | 5 | 1 | ||||||||
| 17.05. 13:55 |
Q-1R | Orlov (7) | 2 | 6 | 5 | 6 | 1.25 | 3.61 | info | ||
| Ilkel | 1 | 1 | 7 | 3 | |||||||
| 17.05. 13:10 |
Q-1R | Ayeni (4) | 2 | 7 | 6 | 2.64 | 1.43 | info | |||
| Lopez Morillo | 0 | 65 | 4 | ||||||||
| 17.05. 12:40 |
Q-1R | Kosaner | 2 | 6 | 7 | 10.50 | 1.04 | info | |||
| Pokorny (11) | 0 | 4 | 65 | ||||||||
| 17.05. 12:05 |
Q-1R | Saraiva Dos Santos (5) | 2 | 6 | 6 | 1.19 | 4.29 | info | |||
| Avcibasi | 0 | 4 | 3 | ||||||||
| 17.05. 10:15 |
Q-1R | Bennani (10) | 2 | 7 | 6 | 1.03 | 11.03 | info | |||
| Duran | 0 | 5 | 2 | ||||||||
| 17.05. 10:10 |
Q-1R | Anavatan | 1 | 6 | 5 | 3.77 | 1.23 | info | |||
| Mckennon (9) | 0 | 2 | 5 | ||||||||
| 17.05. 10:05 |
Q-1R | Matusevich (6) | 2 | 6 | 5 | 7 | 1.69 | 2.06 | info | ||
| Kirkin | 1 | 3 | 7 | 68 |

1. round
Dutra da Silva [1]
Kravchenko [12]
Poullain [2]
Orlov [7]
Sanchez Quilez [3]
Bennani [8]
Ayeni [4]
Duran [WC]
Bennani [10]
Avcibasi [WC]
Anavatan [WC]
Mckennon [9]
Matusevich [6]
Kosaner [WC]
Pokorny [11]
round of 16
Dutra da Silva [1]
Kravchenko [12]
Poullain [2]
Orlov [7]
Sanchez Quilez [3]
Bennani [8]
Ayeni [4]
Bennani [10]
Anavatan [WC]
Matusevich [6]
Kosaner [WC]
Kravchenko [12]
Poullain [2]
Sanchez Quilez [3]
Ayeni [4]
Matusevich [6]
- Tournament details
| Round | Prize money | Ranking points |
| 1. round | 1,045 $ | 0 |
| round of 16 | 1,740 $ | 6 |
| quarterfinal | 3,095 $ | 12 |
| semifinal | 5,510 $ | 22 |
| final | 9,600 $ | 44 |
| winner | 17,000 $ | 75 |
This week's tournaments
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| Brasov challenger | 5 | |||
| Milan challenger | 6 | |||
| Quito challenger | 10 | |||
| Troyes challenger | 8 | |||
| UTR Pro Tennis Series 3 | 39 | |||
| UTR Pro Tennis Series 5 | 16 | |||
| Cary ITF | 18 | |||
| Elvas ITF | 9 | |||
| Vaihingen ITF | 9 | |||
| Aix-les-Bains ITF | 8 | |||
| Amstelveen ITF | 8 | |||
| UTR Pro Tennis Series 5 | 10 | |||
| Getxo ITF | 8 | |||
| Hillcrest ITF | 8 | |||
| Kayseri 7 ITF | 7 | |||
| Kursumlijska Banja 8 ITF | 7 | |||
| Maanshan 6 ITF | 6 | |||
| Mogyorod ITF | 7 | |||
| Monastir 42 ITF | 10 | |||
| San Diego ITF | 12 | |||
| UTR Pro Match Series | 11 | |||
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