By surface
| Surface | Marcos Ondruska | Grant Stafford |
|---|---|---|
| Hard | 3 | 0 |
All meetings (3)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1997-07-28 | ATP | Canada Masters | Round of 64 | Hard | Marcos Ondruska | 4-6 | 7-5 | 6-2 | ||
| 1996-07-15 | ATP | Washington | Round of 64 | Hard | Marcos Ondruska | 5-7 | 7-67 | 6-2 | ||
| 1995-08-14 | ATP | Indianapolis | Round of 64 | Hard | Marcos Ondruska | 6-3 | 4-6 | 6-2 |