Head to head
2
Hard
0
1
Clay
0
2
Grass
0
5
Carpet
1
Ivan Lendl's wins on the left · Jakob Hlasek's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (11)
| 1991 | Grand Slam Cup | Carpet | QF | Ivan Lendl | 7-6 6-3 |
| 1991 | Tokyo Outdoor | Hard | QF | Ivan Lendl | 6-1 6-4 |
| 1991 | Rotterdam | Carpet | QF | Ivan Lendl | 3-6 6-3 7-5 |
| 1990 | Wimbledon | Grass | R64 | Ivan Lendl | 6-1 6-3 6-0 |
| 1989 | WCT Finals | Carpet | QF | Ivan Lendl | 7-6 1-6 7-6 6-7 7-6 |
| 1988 | Masters | Carpet | RR | Jakob Hlasek | 4-6 6-3 7-5 |
| 1988 | US Open | Hard | R16 | Ivan Lendl | 6-4 5-7 6-2 6-4 |
| 1986 | Roland Garros | Clay | R64 | Ivan Lendl | 6-3 6-3 6-3 |
| 1986 | Milan | Carpet | QF | Ivan Lendl | 6-3 6-4 |
| 1984 | Rotterdam | Carpet | R32 | Ivan Lendl | 6-0 6-4 |
| 1983 | Wimbledon | Grass | R32 | Ivan Lendl | 6-1 6-2 6-7 6-4 |
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.