By surface
| Surface | Cliff Letcher | Zan Guerry |
|---|---|---|
| Clay | 0 | 1 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1977-08-31 | ATP | US Open | Round of 128 | Clay | Zan Guerry | 2-6 | 1-6 |
| Surface | Cliff Letcher | Zan Guerry |
|---|---|---|
| Clay | 0 | 1 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1977-08-31 | ATP | US Open | Round of 128 | Clay | Zan Guerry | 2-6 | 1-6 |