[270] Guilherme Clezar 3-6,1-6 Denis Istomin [165] 2020-02-27 18:45
Stadium: Court 5 Round: 26 Ground: Hardcourt indoor
Home History
| Challenger Columbus | 2020/02/26 15:00 | Jason Kubler v Guilherme Clezar | 6-2,6-7,4-6 |
| Challenger Columbus | 2020/02/25 15:00 | Justin Boulais v Guilherme Clezar | 4-6,2-6 |
| Challenger Morelos | 2020/02/22 22:00 | Guilherme Clezar v Jurij Rodionov | 6-3,2-6,4-6 |
| Challenger Morelos | 2020/02/21 19:00 | Daniel Altmaier v Guilherme Clezar | 6-3,6-7,4-6 |
| Challenger Morelos | 2020/02/20 16:30 | Roberto Quiroz v Guilherme Clezar | 6-7,2-6 |
| Challenger Morelos | 2020/02/19 21:30 | Guilherme Clezar v Ramkumar Ramanathan | 7-6,4-6,6-4 |
| Challenger Morelos | 2020/02/18 01:35 | Diego Hidalgo v Guilherme Clezar | 6-7,2-6 |
| Challenger Cleveland | 2020/02/12 15:00 | Ernesto Escobedo v Guilherme Clezar | 6-3,6-4 |
Away History
| Challenger Columbus | 2020/02/26 21:25 | Alexander Cozbinov v Denis Istomin | 2-6,2-6 |
| ATP Delray Beach | 2020/02/18 18:30 | Denis Istomin v Milos Raonic | 2-6,2-6 |
| ATP Delray Beach | 2020/02/16 16:00 | Noah Rubin v Denis Istomin | 6-4,3-6,7-6 |
| ATP Delray Beach | 2020/02/15 16:30 | Guillermo Garcia-Lopez v Denis Istomin | 5-7,2-6 |
| ATP New York | 2020/02/09 20:35 | Bernard Tomic v Denis Istomin | 7-6,4-6,7-6 |
| Challenger Dallas | 2020/02/06 22:15 | Denis Istomin v Dominik Koepfer | 6-7,3-6 |
| Challenger Dallas | 2020/02/05 18:35 | Denis Istomin v Alejandro Tabilo | 6-2,4-6,7-6 |
| Challenger Newport Beach | 2020/01/31 22:40 | Thai-Son Kwiatkowski v Denis Istomin | 7-6,6-4 |