Head to Head
| US Open | 2018/08/22 20:15 | Miomir Kecmanovic v Reilly Opelka | 6-7,6-4,6-4 |
| Challenger Sarasota | 2018/04/17 16:40 | Reilly Opelka v Miomir Kecmanovic | 4-6,7-6,7-5 |
Home History
| ATP Acapulco | 2020/02/27 04:55 | Rafael Nadal v Miomir Kecmanovic | 6-2,7-5 |
| ATP Acapulco | 2020/02/25 00:50 | Alex De Minaur v Miomir Kecmanovic | 6-3,4-6,3-6 |
| ATP Delray Beach | 2020/02/20 17:35 | Miomir Kecmanovic v Ugo Humbert | 4-6,6-7 |
| ATP New York | 2020/02/15 21:00 | Miomir Kecmanovic v Kyle Edmund | 1-6,4-6 |
| ATP New York | 2020/02/14 17:00 | Miomir Kecmanovic v Ugo Humbert | 3-6,6-2,6-4 |
| ATP New York | 2020/02/12 17:00 | Miomir Kecmanovic v Paolo Lorenzi | 6-3,6-3 |
| ATP New York | 2020/02/10 19:25 | Miomir Kecmanovic v Tommy Paul | 6-4,6-2 |
| Challenger Newport Beach | 2020/01/30 21:30 | Miomir Kecmanovic v Daniel Elahi Galan | 3-6,7-6,3-6 |
Away History
| Davis Cup | 2020/03/07 03:00 | Reilly Opelka v Denis Istomin | 6-2,7-5 |
| ATP Delray Beach | 2020/02/23 20:30 | Yoshihito Nishioka v Reilly Opelka | 5-7,7-6,2-6 |
| ATP Delray Beach | 2020/02/23 15:30 | Reilly Opelka v Milos Raonic | 4-6,7-6,6-3 |
| ATP Delray Beach | 2020/02/21 23:00 | Soonwoo Kwon v Reilly Opelka | 3-6,4-6 |
| ATP Delray Beach | 2020/02/19 23:00 | Mackenzie McDonald v Reilly Opelka | 3-6,4-6 |
| ATP Delray Beach | 2020/02/18 19:50 | Ernests Gulbis v Reilly Opelka | 7-6,4-6,6-7 |
| ATP New York | 2020/02/15 00:30 | Reilly Opelka v Jason Jung | 7-5,4-6,4-6 |
| ATP New York | 2020/02/13 20:25 | Reilly Opelka v Yoshihito Nishioka | 6-4,6-4 |