5‑Nov‑1990 | Wembley | Carpet | F | 26 | 16 | (7)Hlasek d. (3)Michael Chang [USA] | 7-6 6-3 | | | | | | | | | |
5‑Nov‑1990 | Wembley | Carpet | SF | 26 | 200 | (7)Hlasek d. (Q)Diego Nargiso [ITA] | 7-6 6-2 | | | | | | | | | |
5‑Nov‑1990 | Wembley | Carpet | QF | 26 | 9 | (7)Hlasek d. (2)Goran Ivanisevic [CRO] | 4-1 RET | | | | | | | | | |
5‑Nov‑1990 | Wembley | Carpet | R16 | 26 | 52 | (7)Hlasek d. Gary Muller [RSA] | 7-5 7-5 | | | | | | | | | |
5‑Nov‑1990 | Wembley | Carpet | R32 | 26 | 51 | (7)Hlasek d. Todd Woodbridge [AUS] | 6-1 6-7 6-3 | | | | | | | | | |
29‑Oct‑1990 | Paris Masters | Carpet | QF | 29 | 1 | (1)Stefan Edberg [SWE] d. Hlasek | 6-3 6-4 | (ch) | | | | | | | | |
29‑Oct‑1990 | Paris Masters | Carpet | R16 | 29 | 10 | Hlasek d. (9)Goran Ivanisevic [CRO] | 6-3 6-1 | | | | | | | | | |
29‑Oct‑1990 | Paris Masters | Carpet | R32 | 29 | 11 | Hlasek d. (7)John Mcenroe [USA] | 3-6 6-3 7-6 | | | | | | | | | |
29‑Oct‑1990 | Paris Masters | Carpet | R64 | 29 | 40 | Hlasek d. (WC)Mats Wilander [SWE] | 6-3 6-2 | | | | | | | | | |
22‑Oct‑1990 | Stockholm Masters | Carpet | R32 | 28 | 10 | (7)Brad Gilbert [USA] d. Hlasek | 6-3 7-6 | | | | | | | | | |
22‑Oct‑1990 | Stockholm Masters | Carpet | R64 | 28 | 30 | Hlasek d. Andrei Cherkasov [RUS] | 6-3 6-4 | | | | | | | | | |
8‑Oct‑1990 | Tokyo Indoor | Carpet | QF | 26 | 1 | (1)Stefan Edberg [SWE] d. (9)Hlasek | 6-4 3-6 7-6 | | | | | | | | | |
8‑Oct‑1990 | Tokyo Indoor | Carpet | R16 | 26 | 118 | (9)Hlasek d. (Q)Brian Garrow [USA] | 6-4 6-4 | | | | | | | | | |
8‑Oct‑1990 | Tokyo Indoor | Carpet | R32 | 26 | 55 | (9)Hlasek d. Paul Haarhuis [NED] | 4-6 6-0 6-3 | | | | | | | | | |
21‑Sep‑1990 | Davis Cup WG PO: YUG vs SUI | Clay | RR | 26 | 49 | Hlasek d. Goran Prpic [CRO] | 3-6 6-4 7-6(3) 6-4 | | | | | | | | | |
10‑Sep‑1990 | Geneva | Clay | R16 | 26 | 80 | (WC)Horacio De La Pena [ARG] d. (3)Hlasek | 6-4 6-2 | | | | | | | | | |
10‑Sep‑1990 | Geneva | Clay | R32 | 26 | 113 | (3)Hlasek d. Martin Strelba [CZE] | 6-4 6-3 | | | | | | | | | |
27‑Aug‑1990 | US Open | Hard | R32 | 27 | 12 | (12)Pete Sampras [USA] d. Hlasek | 6-3 6-4 6-1 | | | | | | | | | |
27‑Aug‑1990 | US Open | Hard | R64 | 27 | 276 | Hlasek d. Tommy Ho [USA] | 6-3 6-2 7-6 | | | | | | | | | |
27‑Aug‑1990 | US Open | Hard | R128 | 27 | 31 | Hlasek d. Richey Reneberg [USA] | 3-6 7-6 6-4 6-0 | | | | | | | | | |
13‑Aug‑1990 | Indianapolis | Hard | R16 | 28 | 13 | (4)Jay Berger [USA] d. (13)Hlasek | 6-4 6-2 | | | | | | | | | |
13‑Aug‑1990 | Indianapolis | Hard | R32 | 28 | 268 | (13)Hlasek d. (Q)Paul Wekesa [KEN] | 6-4 6-2 | | | | | | | | | |
13‑Aug‑1990 | Indianapolis | Hard | R64 | 28 | 91 | (13)Hlasek d. Joey Rive [USA] | 6-3 6-4 | | | | | | | | | |
6‑Aug‑1990 | Cincinnati Masters | Hard | QF | 33 | 7 | (4)Brad Gilbert [USA] d. Hlasek | 2-6 6-1 7-5 | | | | | | | | | |
6‑Aug‑1990 | Cincinnati Masters | Hard | R16 | 33 | 9 | Hlasek d. (5)Aaron Krickstein [USA] | 6-4 6-2 | | | | | | | | | |
6‑Aug‑1990 | Cincinnati Masters | Hard | R32 | 33 | 57 | Hlasek d. Jimmy Arias [USA] | 3-6 6-2 6-3 | | | | | | | | | |
6‑Aug‑1990 | Cincinnati Masters | Hard | R64 | 33 | 20 | Hlasek d. (12)Jonas Svensson [SWE] | 6-4 4-6 7-5 | | | | | | | | | |
23‑Jul‑1990 | Canada Masters | Hard | SF | 47 | 15 | (4)Jay Berger [USA] d. Hlasek | 3-6 6-2 6-2 | | | | | | | | | |
23‑Jul‑1990 | Canada Masters | Hard | QF | 47 | 65 | Hlasek d. Todd Witsken [USA] | 6-4 6-2 | | | | | | | | | |
23‑Jul‑1990 | Canada Masters | Hard | R16 | 47 | 60 | Hlasek d. Jimmy Arias [USA] | 7-5 6-1 | | | | | | | | | |
23‑Jul‑1990 | Canada Masters | Hard | R32 | 47 | 29 | Hlasek d. (8)Petr Korda [CZE] | 5-7 6-4 6-4 | | | | | | | | | |
23‑Jul‑1990 | Canada Masters | Hard | R64 | 47 | 82 | Hlasek d. Scott Davis [USA] | 6-3 6-2 | | | | | | | | | |
16‑Jul‑1990 | Washington | Hard | R16 | 53 | 73 | Michael Stich [GER] d. (10)Hlasek | 7-6 7-6 | | | | | | | | | |
16‑Jul‑1990 | Washington | Hard | R32 | 53 | 164 | (10)Hlasek d. Nicolas Pereira [VEN] | 7-6 6-3 | | | | | | | | | |
16‑Jul‑1990 | Washington | Hard | R64 | 53 | 136 | (10)Hlasek d. Alexander Mronz [GER] | 6-4 7-5 | | | | | | | | | |
25‑Jun‑1990 | Wimbledon | Grass | R64 | 50 | 1 | (1)Ivan Lendl [USA] d. Hlasek | 6-1 6-3 6-0 | | | | | | | | | |
25‑Jun‑1990 | Wimbledon | Grass | R128 | 50 | 146 | Hlasek d. (LL)Carlos Costa [ESP] | 6-3 6-4 6-1 | | | | | | | | | |
11‑Jun‑1990 | Rosmalen | Grass | R16 | 46 | 67 | Glenn Layendecker [USA] d. (3)Hlasek | 7-5 7-5 | | | | | | | | | |
11‑Jun‑1990 | Rosmalen | Grass | R32 | 46 | 172 | (3)Hlasek d. (LL)Nduka Odizor [NGR] | 6-4 6-7 6-2 | | | | | | | | | |
28‑May‑1990 | Roland Garros | Clay | R64 | 39 | 175 | (Q)Nicklas Kulti [SWE] d. Hlasek | 6-2 6-4 6-4 | | | | | | | | | |
28‑May‑1990 | Roland Garros | Clay | R128 | 39 | 105 | Hlasek d. Peter Lundgren [SWE] | 3-6 7-6 2-6 7-5 6-2 | | | | | | | | | |
14‑May‑1990 | Rome Masters | Clay | R64 | 39 | 17 | (10)Thomas Muster [AUT] d. Hlasek | 6-3 6-4 | | | | | | | | | |
7‑May‑1990 | Hamburg Masters | Clay | R32 | 37 | 70 | Jimmy Arias [USA] d. Hlasek | 6-4 2-6 6-2 | | | | | | | | | |
7‑May‑1990 | Hamburg Masters | Clay | R64 | 37 | 67 | Hlasek d. Michael Stich [GER] | 7-6 6-4 | | | | | | | | | |
23‑Apr‑1990 | Monte Carlo Masters | Clay | R64 | 36 | 54 | Tomas Carbonell [ESP] d. Hlasek | 6-3 6-1 | | | | | | | | | |
16‑Apr‑1990 | Nice | Clay | QF | 42 | 51 | Juan Aguilera [ESP] d. Hlasek | 6-4 6-4 | | | | | | | | | |
16‑Apr‑1990 | Nice | Clay | R16 | 42 | 116 | Hlasek d. (Q)Claudio Pistolesi [ITA] | 6-4 6-4 | | | | | | | | | |
16‑Apr‑1990 | Nice | Clay | R32 | 42 | 77 | Hlasek d. (Q)Thierry Tulasne [FRA] | 3-6 6-4 6-4 | | | | | | | | | |
16‑Mar‑1990 | Miami Masters | Hard | QF | 47 | 3 | (3)Stefan Edberg [SWE] d. Hlasek | 6-7 7-6 7-6 | | | | | | | | | |
16‑Mar‑1990 | Miami Masters | Hard | R16 | 47 | 199 | Hlasek d. (Q)Bryan Shelton [USA] | 6-3 6-4 | | | | | | | | | |
16‑Mar‑1990 | Miami Masters | Hard | R32 | 47 | 41 | Hlasek d. (27)Jordi Arrese [ESP] | 7-6 6-2 | | | | | | | | | |
16‑Mar‑1990 | Miami Masters | Hard | R64 | 47 | 7 | Hlasek d. (6)Aaron Krickstein [USA] | 1-6 7-6 6-3 | | | | | | | | | |
16‑Mar‑1990 | Miami Masters | Hard | R128 | 47 | 106 | Hlasek d. Michiel Schapers [NED] | 6-4 6-7 6-4 | | | | | | | | | |
26‑Feb‑1990 | Rotterdam | Carpet | SF | 56 | 29 | (7)Jonas Svensson [SWE] d. (6)Hlasek | 6-4 7-5 | | | | | | | | | |
26‑Feb‑1990 | Rotterdam | Carpet | QF | 56 | 81 | (6)Hlasek d. Alex Antonitsch [AUT] | 7-5 6-1 | | | | | | | | | |
26‑Feb‑1990 | Rotterdam | Carpet | R16 | 56 | 101 | (6)Hlasek d. Nicolas Pereira [VEN] | 6-2 6-3 | | | | | | | | | |
26‑Feb‑1990 | Rotterdam | Carpet | R32 | 56 | 67 | (6)Hlasek d. Eric Jelen [GER] | 7-6 7-6 | | | | | | | | | |
19‑Feb‑1990 | Stuttgart Indoor | Carpet | R32 | 41 | 35 | Paolo Cane [ITA] d. Hlasek | 6-4 7-5 | | | | | | | | | |
12‑Feb‑1990 | Brussels | Carpet | R16 | 42 | 51 | Jonas Svensson [SWE] d. (4)Hlasek | 5-7 6-2 7-6 | | | | | | | | | |
12‑Feb‑1990 | Brussels | Carpet | R32 | 42 | 67 | (4)Hlasek d. Mark Koevermans [NED] | 6-4 6-1 | | | | | | | | | |
5‑Feb‑1990 | Milan | Carpet | QF | 25 | 14 | (5)Tim Mayotte [USA] d. Hlasek | 7-5 6-7 7-5 | | | | | | | | | |
5‑Feb‑1990 | Milan | Carpet | R16 | 25 | 86 | Hlasek d. Jeremy Bates [GBR] | 6-3 3-6 6-3 | | | | | | | | | |
5‑Feb‑1990 | Milan | Carpet | R32 | 25 | 101 | Hlasek d. Peter Lundgren [SWE] | 7-6 7-5 | | | | | | | | | |
2‑Feb‑1990 | Davis Cup WG R1: TCH vs SUI | Carpet | RR | 25 | 76 | Milan Srejber [CZE] d. Hlasek | 3-6 6-4 7-5 | | | | | | | | | |
15‑Jan‑1990 | Australian Open | Hard | R128 | 29 | 81 | Petr Korda [CZE] d. Hlasek | 7-6 6-0 6-3 | | | | | | | | | |