30‑Nov‑1988 | Masters | Carpet | SF | 8 | 4 | Boris Becker [GER] d. Hlasek | 7-6 7-6 | | | | | | | | | |
30‑Nov‑1988 | Masters | Carpet | RR | 8 | 2 | Hlasek d. Ivan Lendl [USA] | 4-6 6-3 7-5 | | | | | | | | | |
30‑Nov‑1988 | Masters | Carpet | RR | 8 | 3 | Hlasek d. Andre Agassi [USA] | 6-3 6-2 | | | | | | | | | |
30‑Nov‑1988 | Masters | Carpet | RR | 8 | 10 | Hlasek d. Tim Mayotte [USA] | 7-5 6-3 | | | | | | | | | |
21‑Nov‑1988 | Brussels | Carpet | F | 8 | 13 | (1)Henri Leconte [FRA] d. (2)Hlasek | 7-6 7-6 6-4 | | | | | | | | | |
21‑Nov‑1988 | Brussels | Carpet | SF | 8 | 84 | (2)Hlasek d. Patrik Kuhnen [GER] | 7-6 3-0 RET | | | | | | | | | |
21‑Nov‑1988 | Brussels | Carpet | QF | 8 | 139 | (2)Hlasek d. Tom Nijssen [NED] | 7-5 6-4 | | | | | | | | | |
21‑Nov‑1988 | Brussels | Carpet | R16 | 8 | 85 | (2)Hlasek d. Glenn Layendecker [USA] | 4-6 7-6 6-4 | | | | | | | | | |
21‑Nov‑1988 | Brussels | Carpet | R32 | 8 | 144 | (2)Hlasek d. Alberto Tous [ESP] | 6-1 7-5 | | | | | | | | | |
14‑Nov‑1988 | Johannesburg | Hard | F | 13 | 52 | (2)Hlasek d. Christo Van Rensburg [RSA] | 6-7 6-4 6-1 7-6 | | | | | | | | | |
14‑Nov‑1988 | Johannesburg | Hard | SF | 13 | 19 | (2)Hlasek d. (3)Brad Gilbert [USA] | 4-6 7-6 7-6 | | | | | | | | | |
14‑Nov‑1988 | Johannesburg | Hard | QF | 13 | 209 | (2)Hlasek d. Matt Anger [USA] | 6-3 6-4 | | | | | | | | | |
14‑Nov‑1988 | Johannesburg | Hard | R16 | 13 | 117 | (2)Hlasek d. Tim Wilkison [USA] | 6-1 4-6 7-5 | | | | | | | | | |
14‑Nov‑1988 | Johannesburg | Hard | R32 | 13 | 74 | (2)Hlasek d. Paolo Cane [ITA] | 7-5 7-6 | | | | | | | | | |
8‑Nov‑1988 | Wembley | Carpet | F | 15 | 25 | (4)Hlasek d. (5)Jonas Svensson [SWE] | 6-7 3-6 6-4 6-0 7-5 | | | | | | | | | |
8‑Nov‑1988 | Wembley | Carpet | SF | 15 | 12 | (4)Hlasek d. (1)Henri Leconte [FRA] | 6-4 7-5 | | | | | | | | | |
8‑Nov‑1988 | Wembley | Carpet | QF | 15 | 24 | (4)Hlasek d. (6)Amos Mansdorf [ISR] | 4-6 6-3 6-2 | | | | | | | | | |
8‑Nov‑1988 | Wembley | Carpet | R16 | 15 | 37 | (4)Hlasek d. Derrick Rostagno [USA] | 6-2 6-2 | | | | | | | | | |
8‑Nov‑1988 | Wembley | Carpet | R32 | 15 | 61 | (4)Hlasek d. Jorge Lozano [MEX] | 6-0 6-1 | | | | | | | | | |
24‑Oct‑1988 | Paris Indoor | Carpet | SF | 25 | 33 | Amos Mansdorf [ISR] d. Hlasek | 7-6 7-6 | | | | | | | | | |
24‑Oct‑1988 | Paris Indoor | Carpet | QF | 25 | 18 | Hlasek d. John Mcenroe [USA] | 7-6 2-6 7-6 | | | | | | | | | |
24‑Oct‑1988 | Paris Indoor | Carpet | R16 | 25 | 22 | Hlasek d. (6)Jonas Svensson [SWE] | 3-6 6-3 6-2 | | | | | | | | | |
24‑Oct‑1988 | Paris Indoor | Carpet | R32 | 25 | 72 | Hlasek d. (WC)Thierry Tulasne [FRA] | 6-4 7-6 | | | | | | | | | |
10‑Oct‑1988 | Toulouse | Hard | SF | 25 | 9 | (2)Jimmy Connors [USA] d. (6)Hlasek | 5-7 7-6 6-3 | | | | | | | | | |
10‑Oct‑1988 | Toulouse | Hard | QF | 25 | 48 | (6)Hlasek d. Milan Srejber [CZE] | 7-5 6-4 | | | | | | | | | |
10‑Oct‑1988 | Toulouse | Hard | R16 | 25 | 277 | (6)Hlasek d. (Q)Marko Ostoja [CRO] | 6-0 6-3 | | | | | | | | | |
10‑Oct‑1988 | Toulouse | Hard | R32 | 25 | 83 | 6-4 6-4 | | | | | | | | | |
4‑Oct‑1988 | Basel | Hard | F | 27 | 3 | (1)Stefan Edberg [SWE] d. (6)Hlasek | 7-5 6-3 3-6 6-2 | | | | | | | | | |
4‑Oct‑1988 | Basel | Hard | SF | 27 | 11 | (6)Hlasek d. (2)Jimmy Connors [USA] | 6-4 3-6 6-1 | | | | | | | | | |
4‑Oct‑1988 | Basel | Hard | QF | 27 | 19 | (6)Hlasek d. (3)Aaron Krickstein [USA] | 6-7 6-3 7-5 | | | | | | | | | |
4‑Oct‑1988 | Basel | Hard | R16 | 27 | 102 | (6)Hlasek d. Peter Lundgren [SWE] | 6-4 6-3 | | | | | | | | | |
4‑Oct‑1988 | Basel | Hard | R32 | 27 | 264 | (6)Hlasek d. (Q)Mansour Bahrami [IRI] | 6-7 6-3 6-4 | | | | | | | | | |
20‑Sep‑1988 | Seoul Olympics | Hard | R16 | 25 | 3 | (1)Stefan Edberg [SWE] d. (10)Hlasek | 6-2 6-4 7-6 | | | | | | | | | |
20‑Sep‑1988 | Seoul Olympics | Hard | R32 | 25 | 213 | (10)Hlasek d. (Q)Zeeshan Ali [IND] | 6-4 7-5 7-5 | | | | | | | | | |
20‑Sep‑1988 | Seoul Olympics | Hard | R64 | 25 | | (10)Hlasek d. (Q)Steven Alger [BER] | 6-3 6-4 6-2 | | | | | | | | | |
29‑Aug‑1988 | US Open | Hard | R16 | 25 | 1 | (1)Ivan Lendl [USA] d. Hlasek | 6-4 5-7 6-2 6-4 | | | | | | | | | |
29‑Aug‑1988 | US Open | Hard | R32 | 25 | 17 | Hlasek d. (15)Anders Jarryd [SWE] | 6-2 6-4 6-2 | | | | | | | | | |
29‑Aug‑1988 | US Open | Hard | R64 | 25 | 50 | Hlasek d. Wally Masur [AUS] | 6-3 6-3 3-6 6-3 | | | | | | | | | |
29‑Aug‑1988 | US Open | Hard | R128 | 25 | 112 | Hlasek d. Claudio Pistolesi [ITA] | 6-2 6-2 4-6 6-3 | | | | | | | | | |
15‑Aug‑1988 | Cincinnati | Hard | QF | 29 | 18 | (11)Anders Jarryd [SWE] d. (13)Hlasek | 6-7 6-3 6-3 | | | | | | | | | |
15‑Aug‑1988 | Cincinnati | Hard | R16 | 29 | 173 | (13)Hlasek d. Gary Muller [RSA] | 4-6 6-3 6-4 | | | | | | | | | |
15‑Aug‑1988 | Cincinnati | Hard | R32 | 29 | 41 | (13)Hlasek d. Ramesh Krishnan [IND] | 3-6 6-2 6-3 | | | | | | | | | |
15‑Aug‑1988 | Cincinnati | Hard | R64 | 29 | 57 | (13)Hlasek d. Todd Witsken [USA] | 6-1 7-6 | | | | | | | | | |
8‑Aug‑1988 | Montreal / Toronto | Hard | R16 | 28 | 6 | (4)Jimmy Connors [USA] d. (13)Hlasek | 6-1 6-4 | | | | | | | | | |
8‑Aug‑1988 | Montreal / Toronto | Hard | R32 | 28 | 129 | (13)Hlasek d. Leif Shiras [USA] | 6-2 7-6 | | | | | | | | | |
8‑Aug‑1988 | Montreal / Toronto | Hard | R64 | 28 | 55 | (13)Hlasek d. Jim Pugh [USA] | 3-6 6-1 7-5 | | | | | | | | | |
11‑Jul‑1988 | Stuttgart Outdoor | Clay | R32 | 28 | 32 | (13)Ronald Agenor [USA] d. Hlasek | 6-3 6-3 | | | | | | | | | |
11‑Jul‑1988 | Stuttgart Outdoor | Clay | R64 | 28 | 64 | Hlasek d. Christian Saceanu [GER] | 6-3 6-2 | | | | | | | | | |
4‑Jul‑1988 | Gstaad | Clay | F | 43 | 45 | Darren Cahill [AUS] d. (7)Hlasek | 6-3 6-4 7-6 | | | | | | | | | |
4‑Jul‑1988 | Gstaad | Clay | SF | 43 | 101 | (7)Hlasek d. Sergio Casal [ESP] | 6-3 6-2 | | | | | | | | | |
4‑Jul‑1988 | Gstaad | Clay | QF | 43 | 60 | (7)Hlasek d. Milan Srejber [CZE] | 6-4 7-5 | | | | | | | | | |
4‑Jul‑1988 | Gstaad | Clay | R16 | 43 | 41 | (7)Hlasek d. Claudio Mezzadri [SUI] | 7-5 6-3 | | | | | | | | | |
4‑Jul‑1988 | Gstaad | Clay | R32 | 43 | 46 | (7)Hlasek d. Carl Uwe Steeb [GER] | 5-7 6-1 6-3 | | | | | | | | | |
20‑Jun‑1988 | Wimbledon | Grass | R64 | 35 | 90 | Patrik Kuhnen [GER] d. Hlasek | 7-6 5-7 4-6 6-1 6-4 | | | | | | | | | |
20‑Jun‑1988 | Wimbledon | Grass | R128 | 35 | 32 | Hlasek d. Dan Goldie [USA] | 6-3 4-6 6-4 7-5 | | | | | | | | | |
23‑May‑1988 | Roland Garros | Clay | R32 | 41 | 8 | (6)Yannick Noah [FRA] d. Hlasek | 6-4 6-4 6-7 6-3 | | | | | | | | | |
23‑May‑1988 | Roland Garros | Clay | R64 | 41 | 120 | Hlasek d. Todd Witsken [USA] | 7-6 6-1 6-3 | | | | | | | | | |
23‑May‑1988 | Roland Garros | Clay | R128 | 41 | | Hlasek d. (WC)Guillaume Raoux [FRA] | 6-1 7-6 6-1 | | | | | | | | | |
16‑May‑1988 | Dusseldorf | Clay | RR | 40 | 114 | Hlasek d. Tarik Benhabiles [FRA] | 6-2 6-2 | | | | | | | | | |
16‑May‑1988 | Dusseldorf | Clay | RR | 40 | 20 | Hlasek d. Martin Jaite [ARG] | 6-4 6-0 | | | | | | | | | |
16‑May‑1988 | Dusseldorf | Clay | RR | 40 | 10 | Hlasek d. Tim Mayotte [USA] | 6-2 4-6 6-2 | | | | | | | | | |
2‑May‑1988 | Munich | Clay | R16 | 33 | 41 | (9)Carl Uwe Steeb [GER] d. (7)Hlasek | 3-6 7-6 6-3 | | | | | | | | | |
2‑May‑1988 | Munich | Clay | R32 | 33 | 246 | (7)Hlasek d. (Q)Richard Fromberg [AUS] | 1-6 6-2 7-6 | | | | | | | | | |
11‑Jan‑1988 | Australian Open | Hard | R128 | 24 | 103 | Broderick Dyke [AUS] d. (9)Hlasek | 6-3 6-3 6-4 | | | | | | | | | |