By surface
| Surface | Tommy Haas | Mario Ancic |
|---|---|---|
| Hard | 2 | 2 |
All meetings (4)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2007-08-13 | ATP | Cincinnati Masters | Round of 64 | Hard | Mario Ancic | 6-3 | 6-73 | 3-6 | ||
| 2007-02-09 | ATP | Davis Cup WG R1: GER vs CRO | Round Robin | Hard | Tommy Haas | 2-6 | 6-4 | 6-4 | 6-4 | |
| 2005-03-21 | ATP | Miami Masters | Round of 32 | Hard | Mario Ancic | 4-6 | 4-6 | |||
| 2004-08-16 | ATP | Athens Olympics | Round of 64 | Hard | Tommy Haas | 6-1 | 7-5 |