Head to head
2
Hard
2
1
Clay
1
0
Carpet
1
Jaime Yzaga's wins on the left · Pete Sampras's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (7)
| 1995 | US Open | Hard | R64 | Pete Sampras | 6-1 6-4 6-3 |
| 1994 | Grand Slam Cup | Carpet | R16 | Pete Sampras | 6-2 6-4 |
| 1994 | US Open | Hard | R16 | Jaime Yzaga | 3-6 6-3 4-6 7-6(4) 7-5 |
| 1992 | Barcelona Olympics | Clay | R32 | Pete Sampras | 6-3 6-0 3-6 6-1 |
| 1989 | US Open | Hard | R32 | Pete Sampras | 4-6 6-4 6-3 6-2 |
| 1989 | Forest Hills | Clay | R64 | Jaime Yzaga | 7-6 6-1 |
| 1988 | US Open | Hard | R128 | Jaime Yzaga | 6-7 6-7 6-4 7-5 6-2 |
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.