25‑Aug‑2003 | US Open | Hard | Q2 | 286 | 95 | (1)Wesley Moodie [RSA] d. Hajek | 6-7(10) 7-6(6) 7-6(4) | | | | | | | | | |
25‑Aug‑2003 | US Open | Hard | Q1 | 286 | 276 | Hajek d. Markus Hipfl [AUT] | 6-1 3-6 6-1 | | | | | | | | | |
11‑Aug‑2003 | Graz CH | Hard | R32 | 246 | 146 | (3)Tomas Berdych [CZE] d. Hajek | 6-4 6-3 | | | | | | | | | |
14‑Jul‑2003 | Budaors CH | Clay | R16 | 202 | 287 | Michal Mertinak [SVK] d. (4)Hajek | 7-6(4) 6-3 | | | | | | | | | |
14‑Jul‑2003 | Budaors CH | Clay | R32 | 202 | 350 | (4)Hajek d. Razvan Sabau [ROU] | 6-7(1) 7-6(4) 4-0 RET | | | | | | | | | |
7‑Jul‑2003 | Oberstaufen CH | Clay | R32 | 193 | 207 | Markus Hantschk [GER] d. (7)Hajek | 6-2 3-6 6-3 | | | | | | | | | |
30‑Jun‑2003 | Kosice2 CH | Clay | R16 | 196 | 69 | (2)Filippo Volandri [ITA] d. Hajek | 6-3 2-6 6-1 | | | | | | | | | |
30‑Jun‑2003 | Kosice2 CH | Clay | R32 | 196 | 403 | Hajek d. (Q)Jaroslav Levinsky [CZE] | 6-1 1-6 6-3 | | | | | | | | | |
23‑Jun‑2003 | Wimbledon | Grass | Q2 | 196 | 189 | Giovanni Lapentti [ECU] d. Hajek | 7-6(7) 6-3 | | | | | | | | | |
23‑Jun‑2003 | Wimbledon | Grass | Q1 | 196 | 147 | Hajek d. (21)George Bastl [SUI] | 7-6(7) 6-3 | | | | | | | | | |
9‑Jun‑2003 | Weiden CH | Clay | R32 | 189 | 424 | (LL)Hugo Armando [USA] d. Hajek | 6-2 6-2 | | | | | | | | | |
2‑Jun‑2003 | Prostejov CH | Clay | R32 | 183 | 128 | Fernando Verdasco [ESP] d. Hajek | 6-0 6-4 | | | | | | | | | |
26‑May‑2003 | Roland Garros | Clay | Q3 | 183 | 213 | Marc Lopez [ESP] d. Hajek | 6-3 2-6 6-3 | | | | | | | | | |
26‑May‑2003 | Roland Garros | Clay | Q2 | 183 | 219 | Hajek d. Renzo Furlan [ITA] | 6-4 6-4 | | | | | | | | | |
26‑May‑2003 | Roland Garros | Clay | Q1 | 183 | 167 | Hajek d. Harel Levy [ISR] | 6-2 7-5 | | | | | | | | | |
12‑May‑2003 | Kosice CH | Clay | R16 | 184 | 509 | (Q)Nicolas Devilder [FRA] d. Hajek | 5-7 6-2 6-2 | | | | | | | | | |
12‑May‑2003 | Kosice CH | Clay | R32 | 184 | 123 | Hajek d. (2)Cyril Saulnier [FRA] | 6-4 6-4 | | | | | | | | | |
21‑Apr‑2003 | Napoli CH | Clay | R16 | 187 | 221 | Nicolas Coutelot [FRA] d. Hajek | 5-2 RET | | | | | | | | | |
21‑Apr‑2003 | Napoli CH | Clay | R32 | 187 | 130 | Hajek d. (6)Peter Luczak [AUS] | 5-7 6-3 6-4 | | | | | | | | | |
10‑Mar‑2003 | Ho Chi Minh CH | Hard | R32 | 189 | 155 | (3)Victor Hanescu [ROU] d. Hajek | 5-7 6-1 6-4 | | | | | | | | | |
3‑Mar‑2003 | Kyoto CH | Carpet | SF | 200 | 308 | Noam Behr [ISR] d. (4)Hajek | 6-2 7-5 | | | | | | | | | |
3‑Mar‑2003 | Kyoto CH | Carpet | QF | 200 | 182 | (4)Hajek d. (6)Wesley Moodie [RSA] | 6-3 7-5 | | | | | | | | | |
3‑Mar‑2003 | Kyoto CH | Carpet | R16 | 200 | 254 | (4)Hajek d. Branislav Sekac [SVK] | 6-3 6-2 | | | | | | | | | |
3‑Mar‑2003 | Kyoto CH | Carpet | R32 | 200 | 813 | (4)Hajek d. (WC)Go Soeda [JPN] | 6-4 6-3 | | | | | | | | | |
6‑Jan‑2003 | Spain 1 1 | Clay | F | 219 | 290 | (4)Hajek d. (1)Mariano Albert Ferrando [ESP] | 4-2 RET | | | | | | | | | |
6‑Jan‑2003 | Spain 1 4 | Clay | F | 219 | 290 | (4)Mariano Albert Ferrando [ESP] d. (1)Hajek | 6-3 6-1 | | | | | | | | | |
6‑Jan‑2003 | Spain 1 1 | Clay | SF | 219 | 289 | (4)Hajek d. Igor Andreev [RUS] | 6-4 2-1 RET | | | | | | | | | |
6‑Jan‑2003 | Spain 1 4 | Clay | SF | 219 | 450 | (1)Hajek d. Javier Garcia Sintes [ESP] | 6-3 6-1 | | | | | | | | | |
6‑Jan‑2003 | Spain 1 1 | Clay | QF | 219 | 450 | (4)Hajek d. (6)Javier Garcia Sintes [ESP] | 6-2 2-6 7-5 | | | | | | | | | |
6‑Jan‑2003 | Spain 1 2 | Clay | QF | 219 | 737 | Nicolas Almagro [ESP] d. (3)Hajek | 7-6(4) 7-6(5) | | | | | | | | | |
6‑Jan‑2003 | Spain 1 3 | Clay | QF | 219 | 349 | (7)Francisco Fogues [ESP] d. (1)Hajek | 6-4 6-4 | | | | | | | | | |
6‑Jan‑2003 | Spain 1 4 | Clay | QF | 219 | 524 | (1)Hajek d. Artemon Apostu Efremov [ROU] | 7-6(2) 6-3 | | | | | | | | | |
6‑Jan‑2003 | Spain 1 1 | Clay | R16 | 219 | 409 | (4)Hajek d. German Puentes [ESP] | 6-2 6-4 | | | | | | | | | |
6‑Jan‑2003 | Spain 1 2 | Clay | R16 | 219 | 760 | (3)Hajek d. (Q)Jordi Marse Vidri [ESP] | 6-0 6-3 | | | | | | | | | |
6‑Jan‑2003 | Spain 1 3 | Clay | R16 | 219 | 737 | (1)Hajek d. (Q)Nicolas Almagro [ESP] | 6-3 6-3 | | | | | | | | | |
6‑Jan‑2003 | Spain 1 4 | Clay | R16 | 219 | 497 | (1)Hajek d. (WC)Marc Marco Ripoll [ESP] | 6-4 6-2 | | | | | | | | | |
6‑Jan‑2003 | Spain 1 2 | Clay | R32 | 219 | | (3)Hajek d. (WC)Wenceslao Robles Febrer [ESP] | 6-1 6-4 | | | | | | | | | |
6‑Jan‑2003 | Spain 1 3 | Clay | R32 | 219 | 445 | (1)Hajek d. Miles Maclagan [GBR] | 6-3 6-4 | | | | | | | | | |
6‑Jan‑2003 | Spain 1 4 | Clay | R32 | 219 | 477 | (1)Hajek d. Emilio Benfele Alvarez [ESP] | 6-4 2-6 6-0 | | | | | | | | | |