| ATP Paris Qual | 10/28 09:35 | 45 | [56] Denis Istomin v Laslo Djere [89] | Retired | |
| ATP Basel Qual | 10/21 17:45 | 45 | [57] Denis Istomin v Marcel Granollers [145] | 6-7,1-6 | |
| ATP - Stockholm | 10/17 10:00 | 25 | [37] Yuichi Sugita v Denis Istomin [57] | 1-6,6-3,7-6 | |
| Challenger Tashkent | 10/13 08:05 | 28 | [51] Denis Istomin v Guillermo Garcia-Lopez [105] | 6-7,4-6 | |
| Challenger Tashkent | 10/12 07:25 | 27 | [51] Denis Istomin v Uladzimir Ignatik [193] | 6-3,6-3 | |
| Challenger Tashkent | 10/11 07:40 | 26 | [51] Denis Istomin v Aldin Setkic [170] | 6-4,6-1 | |
| Challenger Tashkent | 10/10 06:50 | 25 | Denis Istomin v Farrukh Dustov | 6-7,6-1,7-5 | |
| ATP - Chengdu | 10/01 08:30 | 29 | [113] Marcos Baghdatis v Denis Istomin [78] | Retired | |
| ATP - Chengdu | 09/30 06:00 | 28 | [78] Denis Istomin v Yuichi Sugita [43] | 6-2,6-7,6-0 | |
| ATP - Chengdu | 09/29 08:00 | 27 | [58] Jared Donaldson v Denis Istomin [78] | 6-2,5-7,6-7 | |
| ATP - Chengdu | 09/27 07:45 | 26 | [78] Denis Istomin v Karen Khachanov [32] | 6-3,6-2 | |
| ATP - Chengdu | 09/26 07:50 | 25 | [78] Denis Istomin v Jan-Lennard Struff [47] | 6-3,7-6 | |
| ATP - Metz | 09/22 18:50 | 27 | [82] Denis Istomin v Nikoloz Basilashvili [64] | 5-7,3-6 | |
| ATP - Metz | 09/21 10:00 | 26 | [82] Denis Istomin v Yannick Maden [186] | 6-3,6-7,7-6 | |
| ATP - Metz | 09/19 16:15 | 25 | [30] Richard Gasquet v Denis Istomin [82] | 6-1,4-6,4-6 | |
| Challenger - Istanbul | 09/15 10:30 | 27 | [101] Alexander Bublik v Denis Istomin [87] | Retired | |
| Challenger - Istanbul | 09/13 10:35 | 26 | [393] Roman Safiullin v Denis Istomin [87] | 3-6,6-3,6-7 | |
| Challenger - Istanbul | 09/12 07:30 | 25 | [150] Vincent Millot v Denis Istomin [87] | Retired | |
| US Open | 08/28 18:20 | 23 | Albert Ramos-Vinolas v Denis Istomin | 4-6,7-6,7-5,6-7,7-5 | |
| ATP - Winston Salem | 08/21 22:35 | 24 | [85] Denis Istomin v Damir Dzumhur [67] | 4-6,4-6 | |
| ATP Cincinnati Qual | 08/12 21:40 | 45 | [207] Mackenzie McDonald v Denis Istomin [82] | 6-4,6-2 | |
| ATP - Gstaad | 07/28 13:00 | 27 | [82] Denis Istomin v Roberto Bautista-Agut [18] | 3-6,4-6 | |
| ATP - Gstaad | 07/26 12:00 | 26 | [113] Dustin Brown v Denis Istomin [82] | 3-6,1-6 | |
| ATP - Gstaad | 07/24 14:30 | 25 | [192] Lorenzo Giustino v Denis Istomin [82] | 3-6,2-6 | |
| ATP - Umag | 07/18 15:00 | 25 | [149] Andrej Martin v Denis Istomin [82] | 6-3,6-2 | |
| Wimbledon | 07/03 11:55 | 23 | [43] Donald Young v Denis Istomin [72] | Retired | |
| ATP - Antalya | 06/25 12:00 | 25 | [69] Denis Istomin v Steve Darcis [58] | 4-6,7-6,4-6 | |
| ATP Halle Qual | 06/17 09:00 | 45 | [74] Denis Istomin v Maximilian Marterer [123] | 6-7,6-7 | |
| ATP Den Bosch | 06/12 09:00 | 25 | [59] Aljaz Bedene v Denis Istomin [74] | 3-6,6-2,6-1 | |
| French Open | 06/01 11:30 | 24 | [67] Hyeon Chung v Denis Istomin [80] | 6-1,7-5,6-1 |
Wikipedia - Denis Istomin
Denis Olegovitsj Istomin (Russisch: Денис Олегович Истомин) (Orenburg, 7 september 1986) is een Oezbeeks tennisser. Hij is prof sinds 2001 en haalde in 2009 voor het eerst de top 100. Zijn hoogste plaats op de ATP-ranglijst is de 33e, die hij behaalde op 13 augustus 2012.
Istomin haalde vijf keer de finale van een ATP-toernooi, waarvan hij er twee kon winnen. Hij heeft in het enkelspel wel twaalf challengers op zijn naam staan. Zijn beste resultaat in het enkelspel op een grandslamtoernooi is de vierde ronde. In augustus 2018 won Istomin het tennistoernooi van de Aziatische Spelen 2018.