By surface
| Surface | John Alexander | Gustavo Guerrero |
|---|---|---|
| Clay | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1980-05-12 | ATP | Florence | Round of 32 | Clay | John Alexander | 7-6 | 4-6 | 6-1 |
| Surface | John Alexander | Gustavo Guerrero |
|---|---|---|
| Clay | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1980-05-12 | ATP | Florence | Round of 32 | Clay | John Alexander | 7-6 | 4-6 | 6-1 |