ATP Tennis - Denis Istomin
- Tournament: N/A
- Round: N/A
- Opponent: N/A
- DOB: 1986-09-07
- Birthplace: USSR, USSR
- Height: 74.0 cm
- Weight: 194.0 kg
- Plays: R
- Current World Rank: N/A
- Hard: 103-138
- Clay: 38-63
- Grass: 35-32
| Tournament | Date | Sets | Round | Winner | Loser |
|---|---|---|---|---|---|
| Stockholm Open | Nov 8, 2021 | 6-4, 6-2 | First Round | Filip Krajinovic | Denis Istomin |
| Roland Garros | May 31, 2021 | 6-2, 6-4, 6-3 | First Round | Roger Federer | Denis Istomin |
| Delray Beach Open | Feb 18, 2020 | 6-2, 6-2 | First Round | Milos Raonic | Denis Istomin |
| Suisse Open Gstaad | Jul 25, 2019 | 6-4, 6-7 (2-7), 7-6 (7-2) | Second Round | Dusan Lajovic | Denis Istomin |
| Suisse Open Gstaad | Jul 23, 2019 | 6-3, 7-6 (7-0) | First Round | Denis Istomin | Marc-Andrea Huesler |
| Hall of Fame Tennis Championships | Jul 15, 2019 | 6-4, 5-7, 6-4 | First Round | Tennys Sandgren | Denis Istomin |
| Wimbledon | Jul 2, 2019 | 6-2, 6-4, 6-4 | First Round | Cameron Norrie | Denis Istomin |
| Bavarian International Tennis Championships | Apr 30, 2019 | 7-6 (7-5), 6-3 | First Round | Matteo Berrettini | Denis Istomin |
| Grand Prix Hassan II | Apr 9, 2019 | 6-4, 6-4 | First Round | Alexander Zverev | Denis Istomin |
| BNP Paribas Open | Mar 8, 2019 | 7-6 (7-2), 6-1 | First Round | Robin Haase | Denis Istomin |
