1‑Dec‑2003 | Ischgl CH | Carpet | R16 | 161 | 114 | (1)Joachim Johansson [SWE] d. Karanusic | 6-4 6-7(2) 7-6(5) | | | | | | | | | |
1‑Dec‑2003 | Ischgl CH | Carpet | R32 | 161 | 189 | Karanusic d. Massimo Dellacqua [ITA] | 6-7(4) 7-6(5) 6-3 | | | | | | | | | |
24‑Nov‑2003 | Milan1 CH | Carpet | SF | 171 | 111 | (5)Dennis Van Scheppingen [NED] d. Karanusic | 3-6 6-4 6-0 | | | | | | | | | |
24‑Nov‑2003 | Milan1 CH | Carpet | QF | 171 | 132 | Karanusic d. Dick Norman [BEL] | 7-6(2) 4-6 7-6(4) | | | | | | | | | |
24‑Nov‑2003 | Milan1 CH | Carpet | R16 | 171 | 114 | Karanusic d. (3)Tomas Berdych [CZE] | 6-4 7-5 | | | | | | | | | |
24‑Nov‑2003 | Milan1 CH | Carpet | R32 | 171 | 160 | Karanusic d. Razvan Sabau [ROU] | 7-6(2) 6-4 | | | | | | | | | |
10‑Nov‑2003 | Helsinki2 CH | Hard | R16 | 171 | 117 | (6)Joachim Johansson [SWE] d. Karanusic | 6-2 6-2 | | | | | | | | | |
10‑Nov‑2003 | Helsinki2 CH | Hard | R32 | 171 | 271 | Karanusic d. (WC)Timo Nieminen [FIN] | 6-4 6-2 | | | | | | | | | |
3‑Nov‑2003 | Eckental CH | Carpet | R32 | 171 | 460 | (Q)Robert Lindstedt [SWE] d. Karanusic | 6-4 6-4 | | | | | | | | | |
27‑Oct‑2003 | Aachen CH | Carpet | R32 | 166 | 120 | (7)Federico Browne [ARG] d. Karanusic | 6-4 7-6(2) | | | | | | | | | |
29‑Sep‑2003 | Groningen CH | Hard | QF | 179 | 122 | (2)Kristof Vliegen [BEL] d. Karanusic | 6-3 6-1 | | | | | | | | | |
29‑Sep‑2003 | Groningen CH | Hard | R16 | 179 | 153 | Karanusic d. (6)Razvan Sabau [ROU] | 6-4 6-0 | | | | | | | | | |
29‑Sep‑2003 | Groningen CH | Hard | R32 | 179 | 260 | Karanusic d. Slimane Saoudi [ALG] | 6-2 6-1 | | | | | | | | | |
15‑Sep‑2003 | Banja Luka CH | Clay | SF | 201 | 252 | Frantisek Cermak [CZE] d. (5)Karanusic | 7-6(4) 7-5 | | | | | | | | | |
15‑Sep‑2003 | Banja Luka CH | Clay | QF | 201 | 155 | (5)Karanusic d. (3)Daniel Elsner [GER] | 6-1 6-3 | | | | | | | | | |
15‑Sep‑2003 | Banja Luka CH | Clay | R16 | 201 | 365 | (5)Karanusic d. Ion Moldovan [ROU] | 6-4 6-3 | | | | | | | | | |
15‑Sep‑2003 | Banja Luka CH | Clay | R32 | 201 | | (5)Karanusic d. (Q)Daniel Krajnovic [CRO] | 6-2 6-1 | | | | | | | | | |
8‑Sep‑2003 | Sofia CH | Clay | R32 | 200 | 305 | Stephane Robert [FRA] d. Karanusic | 6-7(2) 6-4 6-1 | | | | | | | | | |
1‑Sep‑2003 | Brasov CH | Clay | QF | 225 | 157 | (4)Stefano Galvani [ITA] d. (7)Karanusic | 1-6 7-5 6-4 | | | | | | | | | |
1‑Sep‑2003 | Brasov CH | Clay | R16 | 225 | 420 | (7)Karanusic d. Christopher Kas [GER] | 6-1 6-2 | | | | | | | | | |
1‑Sep‑2003 | Brasov CH | Clay | R32 | 225 | 1109 | (7)Karanusic d. (Q)Horia Tecau [ROU] | 6-1 7-5 | | | | | | | | | |
25‑Aug‑2003 | US Open | Hard | R128 | 225 | 41 | (33)Juan Ignacio Chela [ARG] d. (Q)Karanusic | 6-4 7-6(2) 6-3 | | 0.79 | 4.2% | 3.1% | 58.3% | 73.2% | 55.0% | 9/12 | 1:53 |
11‑Aug‑2003 | Graz CH | Hard | SF | 254 | 146 | (3)Tomas Berdych [CZE] d. Karanusic | 7-6(5) 6-3 | | | | | | | | | |
11‑Aug‑2003 | Graz CH | Hard | QF | 254 | 181 | Karanusic d. (5)Markus Hantschk [GER] | 6-3 6-1 | | | | | | | | | |
11‑Aug‑2003 | Graz CH | Hard | R16 | 254 | 314 | Karanusic d. Ota Fukarek [CZE] | 7-5 6-2 | | | | | | | | | |
11‑Aug‑2003 | Graz CH | Hard | R32 | 254 | 128 | Karanusic d. (2)Giorgio Galimberti [ITA] | 3-6 6-3 6-0 | | | | | | | | | |
21‑Jul‑2003 | Umag | Clay | R32 | 247 | 303 | (WC)Stanislas Wawrinka [SUI] d. (Q)Karanusic | 6-4 6-4 | | 0.88 | 1.7% | 8.3% | 50.0% | 73.3% | 43.3% | 5/8 | 1:21 |
14‑Jul‑2003 | Budaors CH | Clay | R16 | 246 | 192 | (7)Tomas Berdych [CZE] d. Karanusic | 7-5 6-4 | | | | | | | | | |
14‑Jul‑2003 | Budaors CH | Clay | R32 | 246 | 404 | Karanusic d. (Q)Juan Monaco [ARG] | 6-3 0-6 7-6(5) | | | | | | | | | |
7‑Jul‑2003 | Oberstaufen CH | Clay | R32 | 244 | 241 | Marcello Craca [GER] d. Karanusic | 6-2 6-2 | | | | | | | | | |
23‑Jun‑2003 | Reggio Emilia CH | Clay | R32 | 246 | 168 | (7)Renzo Furlan [ITA] d. Karanusic | 7-6(5) 6-1 | | | | | | | | | |
2‑Jun‑2003 | Sassuolo CH | Clay | R32 | 247 | 384 | Juan Albert Viloca Puig [ESP] d. Karanusic | 6-4 6-3 | | | | | | | | | |
26‑May‑2003 | Ljubljana CH | Clay | R32 | 247 | 120 | (2)Werner Eschauer [AUT] d. Karanusic | 6-7(6) 6-1 6-1 | | | | | | | | | |
12‑May‑2003 | Zagreb CH | Clay | R32 | 243 | 132 | Ruben Ramirez Hidalgo [ESP] d. (WC)Karanusic | 7-6(6) 6-4 | | | | | | | | | |
28‑Apr‑2003 | Hungary F1 | Clay | R32 | 246 | | (Q)Zoltan Boroczky [HUN] d. (2)Karanusic | 6-3 6-3 | | | | | | | | | |
14‑Apr‑2003 | Italy F3 | Clay | R32 | 247 | 351 | (WC)Andreas Seppi [ITA] d. (4)Karanusic | 7-6(4) 6-1 | | | | | | | | | |
24‑Mar‑2003 | France F8 | Carpet | R32 | | | (Q)Timothy Aerts [BEL] d. Karanusic | 6-3 6-3 | | | | | | | | | |
17‑Mar‑2003 | France F7 | Hard | R32 | 251 | 203 | (4)Joachim Johansson [SWE] d. Karanusic | 3-6 7-6(2) 6-4 | | | | | | | | | |
10‑Mar‑2003 | Sarajevo CH | Hard | R32 | 248 | 124 | (3)Richard Gasquet [FRA] d. (Q)Karanusic | 7-6(5) 6-4 | | | | | | | | | |
17‑Feb‑2003 | Croatia F2 | Hard | F | 302 | 315 | (4)Karanusic d. (6)Uros Vico [ITA] | 2-6 6-3 6-4 | | | | | | | | | |
17‑Feb‑2003 | Croatia F2 | Hard | SF | 302 | 752 | (4)Karanusic d. (SE)Tomas Cakl [CZE] | 6-4 6-2 | | | | | | | | | |
17‑Feb‑2003 | Croatia F2 | Hard | QF | 302 | 914 | (4)Karanusic d. (Q)Bostjan Osabnik [SLO] | 6-2 6-3 | | | | | | | | | |
17‑Feb‑2003 | Croatia F2 | Hard | R16 | 302 | 1185 | (4)Karanusic d. (Q)Kresimir Ritz [CRO] | 7-5 6-2 | | | | | | | | | |
17‑Feb‑2003 | Croatia F2 | Hard | R32 | 302 | 411 | (4)Karanusic d. Petr Kralert [CZE] | 6-3 6-4 | | | | | | | | | |
10‑Feb‑2003 | Croatia F1 | Hard | F | 301 | 755 | (Q)Tomas Cakl [CZE] d. (8)Karanusic | 7-6(3) 6-4 | | | | | | | | | |
10‑Feb‑2003 | Croatia F1 | Hard | SF | 301 | 406 | (8)Karanusic d. (Q)Igor Zelenay [SVK] | 6-4 6-2 | | | | | | | | | |
10‑Feb‑2003 | Croatia F1 | Hard | QF | 301 | 405 | (8)Karanusic d. (WC)Sasa Tuksar [CRO] | 5-0 RET | | | | | | | | | |
10‑Feb‑2003 | Croatia F1 | Hard | R16 | 301 | 913 | (8)Karanusic d. (Q)Bostjan Osabnik [SLO] | 7-6(4) 6-2 | | | | | | | | | |
10‑Feb‑2003 | Croatia F1 | Hard | R32 | 301 | 398 | (8)Karanusic d. Lukas Dlouhy [CZE] | 6-4 6-3 | | | | | | | | | |
3‑Feb‑2003 | Belgrade CH | Carpet | SF | 363 | 247 | Markus Hantschk [GER] d. (Q)Karanusic | 1-6 7-5 6-3 | | | | | | | | | |
3‑Feb‑2003 | Belgrade CH | Carpet | QF | 363 | 270 | (Q)Karanusic d. (Q)Branislav Sekac [SVK] | 6-1 6-4 | | | | | | | | | |
3‑Feb‑2003 | Belgrade CH | Carpet | R16 | 363 | 142 | (Q)Karanusic d. (1)Tomas Zib [CZE] | 7-5 7-5 | | | | | | | | | |
3‑Feb‑2003 | Belgrade CH | Carpet | R32 | 363 | 217 | (Q)Karanusic d. Ivo Karlovic [CRO] | 7-6(5) 6-3 | | | | | | | | | |
20‑Jan‑2003 | Germany F1C | Carpet | SF | | | Lars Uebel [GER] d. Karanusic | 6-3 6-3 | | | | | | | | | |
20‑Jan‑2003 | Germany F1C | Carpet | QF | | | Karanusic d. (Q)Philipp Hammer [GER] | 6-4 6-4 | | | | | | | | | |
20‑Jan‑2003 | Germany F1C | Carpet | R16 | | | Karanusic d. (3)Dieter Kindlmann [GER] | 6-3 3-6 6-3 | | | | | | | | | |
20‑Jan‑2003 | Germany F1C | Carpet | R32 | | 1038 | Karanusic d. (Q)Michael Ryderstedt [SWE] | 6-2 6-4 | | | | | | | | | |
13‑Jan‑2003 | Germany F1B | Hard | F | 443 | 451 | Karanusic d. Igor Zelenay [SVK] | 7-5 7-5 | | | | | | | | | |
13‑Jan‑2003 | Germany F1B | Hard | SF | 443 | 337 | Karanusic d. (LL)Philipp Petzschner [GER] | 7-5 6-3 | | | | | | | | | |
13‑Jan‑2003 | Germany F1B | Hard | QF | 443 | 392 | Karanusic d. Florian Mayer [GER] | 7-6(4) 6-2 | | | | | | | | | |
13‑Jan‑2003 | Germany F1B | Hard | R16 | 443 | 301 | Karanusic d. (2)Marcello Craca [GER] | 6-2 6-3 | | | | | | | | | |
13‑Jan‑2003 | Germany F1B | Hard | R32 | 443 | 357 | Karanusic d. Nicklas Timfjord [SWE] | 6-4 6-2 | | | | | | | | | |
6‑Jan‑2003 | Germany F1A | Hard | SF | 444 | 921 | (WC)Tobias Summerer [GER] d. (Q)Karanusic | 6-1 6-4 | | | | | | | | | |
6‑Jan‑2003 | Germany F1A | Hard | QF | 444 | 438 | (Q)Karanusic d. Lukasz Kubot [POL] | 6-3 6-7(2) 6-3 | | | | | | | | | |
6‑Jan‑2003 | Germany F1A | Hard | R16 | 444 | 414 | (Q)Karanusic d. Mariusz Fyrstenberg [POL] | 6-3 6-2 | | | | | | | | | |
6‑Jan‑2003 | Germany F1A | Hard | R32 | 444 | 656 | (Q)Karanusic d. Gregory Girault [FRA] | 6-4 6-7(9) 6-2 | | | | | | | | | |