By surface
| Surface | Gianluca Mager | Christian Harrison |
|---|---|---|
| Hard | 0 | 1 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2021-01-04 | ATP | Delray Beach | Quarterfinal | Hard | Christian Harrison | 6-72 | 4-6 |
| Surface | Gianluca Mager | Christian Harrison |
|---|---|---|
| Hard | 0 | 1 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2021-01-04 | ATP | Delray Beach | Quarterfinal | Hard | Christian Harrison | 6-72 | 4-6 |