Head to head
1
Hard
1
1
Clay
1
1
Carpet
1
Tommy Haas's wins on the left · Magnus Gustafsson's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 2001 | Moscow | Carpet | QF | Tommy Haas | 6-1 6-4 |
| 2001 | San Jose | Hard | R16 | Tommy Haas | 4-6 6-3 6-4 |
| 1999 | Stockholm | Hard | R16 | Magnus Gustafsson | 6-3 7-6(7) |
| 1998 | Paris Masters | Carpet | R16 | Magnus Gustafsson | 6-4 6-2 |
| 1998 | Stuttgart Outdoor | Clay | R32 | Magnus Gustafsson | 6-3 6-1 |
| 1997 | Rome Masters | Clay | R64 | Tommy Haas | 3-6 6-4 7-5 |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.