| Challenger - San Luis Potosi | 04/12 18:00 | 25 | [220] Matheus P De Almeida v Denis Istomin [296] | 7-6,1-6,3-6 | |
| Challenger - Mexico City | 04/04 20:25 | 25 | [225] Matheus P De Almeida v Denis Istomin [293] | 5-7,7-6,7-6 | |
| Challenger - Zadar | 03/21 13:50 | 25 | Dino Prizmic v Denis Istomin | 7-5,6-3 | |
| ATP - Delray Beach | 02/16 19:50 | 26 | [41] Tommy Paul v Denis Istomin [267] | 6-2,6-0 | |
| ATP - Delray Beach | 02/15 18:00 | 25 | [267] Denis Istomin v Sam Querrey [117] | 6-1,7-6 | |
| ATP - Delray Beach | 02/13 18:00 | 19 | [149] Emilio Gomez v Denis Istomin [267] | 6-7,2-6 | |
| ATP - Delray Beach | 02/12 15:00 | 14 | [267] Denis Istomin v Jurij Rodionov [153] | 6-4,6-2 | |
| ATP - Dallas | 02/06 23:00 | 14 | [124] Liam Broady v Denis Istomin [266] | 5-7,7-6,7-6 | |
| Challenger - Cleveland | 02/01 18:25 | 25 | [123] Yoshihito Nishioka v Denis Istomin [266] | 6-1,6-1 | |
| Challenger - Columbus | 01/27 18:55 | 26 | [58] Jenson Brooksby v Denis Istomin [254] | 7-5,6-1 | |
| Challenger - Columbus | 01/25 23:15 | 25 | [254] Denis Istomin v Sebastian Fanselow [348] | 7-5,1-6,6-4 | |
| Challenger - Forlì | 01/17 14:30 | 25 | [231] Pavel Kotov v Denis Istomin [254] | 6-4,6-4 | |
| Challenger - Forlì | 01/10 15:35 | 25 | [284] Borna Gojo v Denis Istomin [253] | 6-2,6-4 | |
| Challenger - Helsinki | 11/16 15:00 | 25 | [244] Denis Istomin v Henri Laaksonen [97] | 3-6,3-6 | |
| ATP - Stockholm | 11/08 19:45 | 25 | [248] Denis Istomin v Filip Krajinovic [42] | 4-6,2-6 | |
| ATP - Stockholm | 11/07 11:00 | 19 | [135] Jozef Kovalik v Denis Istomin [249] | 4-6,5-7 | |
| ATP - Stockholm | 11/06 13:35 | 14 | Jonathan Mridha v Denis Istomin | 6-2,3-6,4-6 | |
| ATP - Moskou | 10/16 09:00 | 14 | [224] Denis Istomin v Jurij Rodionov [142] | 4-6,2-6 | |
| Challenger - Alicante | 10/13 10:55 | 26 | [224] Denis Istomin v Denis Yevseyev [406] | 5-7,4-6 | |
| Challenger - Alicante | 10/11 12:20 | 25 | [305] Kyrian Jacquet v Denis Istomin [224] | Retired | |
| ATP - Indian Wells | 10/05 21:25 | 14 | [224] Denis Istomin v Ernesto Escobedo [178] | 3-6,2-6 | |
| ATP - Metz | 09/19 14:55 | 14 | [109] Philipp Kohlschreiber v Denis Istomin [226] | 7-5,6-3 | |
| Davis Cup | 09/17 17:30 | 2 | [381] Viktor Durasovic v Denis Istomin [226] | 6-4,6-4 | |
| Challenger - St. Tropez | 08/30 15:10 | 25 | [320] Kyrian Jacquet v Denis Istomin [207] | 6-4,3-6,6-1 | |
| US Open | 08/24 15:00 | 14 | [157] Jeffrey John Wolf v Denis Istomin [207] | 7-5,6-2 | |
| Olympische Spelen 2020 - Heren | 07/24 03:20 | 24 | [160] Sumit Nagal v Denis Istomin [197] | 6-4,6-7,6-4 | |
| Challenger - Nur-Sultan | 07/13 04:00 | 25 | [367] Ryan Peniston v Denis Istomin [196] | 6-1,3-6,6-3 | |
| Challenger - Porto | 07/01 12:00 | 26 | [188] Denis Istomin v Gastao Elias [240] | 5-7,4-6 | |
| Challenger - Porto | 06/28 13:20 | 25 | [188] Denis Istomin v Guido Andreozzi [203] | 6-4,6-3 | |
| ATP - Mallorca | 06/20 11:30 | 19 | [254] Lukas Klein v Denis Istomin [187] | 6-3,2-6,6-4 |
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.
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