| 06sen.NdsEM Bevensen OpenBad Bevensen (21.06.-29.06)· Jun 22 – 29, 2003 | Jun 22 – 29, 2003 | Classical | 16 | 2117 | 13 |
| Bad Bevensen (21.06.-29.06)Bad Bevensen (21.06.-29.06)· Jun 21 – 29, 2003 | Jun 21 – 29, 2003 | Classical | 25 | 2068 | 18 |
Haarlem Nova College Open 2nd Haarlem NED· Jun 27 – 29, 2003 | Jun 27 – 29, 2003 | Classical | 12 | 2195 | 6 |
Ho Chi Minh VIE, zonal 3.2 (m) 03 Ho Chi Minh City VIE· Jun 21 – 29, 2003 | Jun 21 – 29, 2003 | Classical | 13 | 2246 | 11 |
Corsica Ch Bastia FRA· Jun 21 – 29, 2003 | Jun 21 – 29, 2003 | Classical | 14 | 1921 | 28 |
| ItPancevo YUG· Jun 20 – 29, 2003 | Jun 20 – 29, 2003 | Classical | 9 | 2488 | 13 |
POL Supercup Warsaw POL· Jun 28 – 29, 2003 | Jun 28 – 29, 2003 | Classical | 13 | 2535 | 10 |
Balatonlelle IM Balatonlelle HUN· Jun 21 – 29, 2003 | Jun 21 – 29, 2003 | Classical | 10 | 2334 | 41 |
Balatonlelle GM Balatonlelle HUN· Jun 21 – 29, 2003 | Jun 21 – 29, 2003 | Classical | 10 | 2358 | 42 |
| Borovetz OpenBorovetz· Jun 24 – 29, 2003 | Jun 24 – 29, 2003 | Classical | 27 | 2138 | 71 |
Zonal 3.2a women Ho Chi Minh City VIE· Jun 21 – 29, 2003 | Jun 21 – 29, 2003 | Classical | 21 | 2135 | 79 |
| Zemplen Cup OpenSarospatak· Jun 27 – 29, 2003 | Jun 27 – 29, 2003 | Classical | 48 | 2217 | 117 |
Borovetz BUL, Open 2003 Borovetz BUL· Jun 25 – 29, 2003 | Jun 25 – 29, 2003 | Classical | 11 | 2311 | 15 |
| GER North Ch Seniors 6thBad Bevensen· Jun 21 – 29, 2003 | Jun 21 – 29, 2003 | Classical | 86 | 2049 | 139 |
Balatonlelle Open Balatonlelle HUN· Jun 21 – 29, 2003 | Jun 21 – 29, 2003 | Classical | 65 | 2264 | 172 |
Zonal 3.2a Ho Chi Minh City VIE· Jun 21 – 29, 2003 | Jun 21 – 29, 2003 | Classical | 37 | 2310 | 144 |
Ho Chi Minh City zt 3.2a Ho Chi Minh City VIE· Jun 21 – 29, 2003 | Jun 21 – 29, 2003 | Classical | 18 | 2278 | 14 |
| 2. Torneo Internazionale GM NAO· Jun 21 – 28, 2003 | Jun 21 – 28, 2003 | Classical | 9 | 2436 | 10 |
2. NAO GM Paris FRA· Jun 20 – 28, 2003 | Jun 20 – 28, 2003 | Classical | 10 | 2447 | 21 |
ESP Ch U14 Mondariz ESP· Jun 24 – 28, 2003 | Jun 24 – 28, 2003 | Classical | 52 | 1966 | 58 |
Jahorina BIH, Team Championship Jahorina BIH· Jun 22 – 27, 2003 | Jun 22 – 27, 2003 | Classical | 10 | 2535 | 6 |
Jahorina BIH, Team Ch (m) Jahorina BIH· Jun 21 – 27, 2003 | Jun 21 – 27, 2003 | Classical | 11 | 2362 | 8 |
Grenoble FRA, Closed IM 2003 Grenoble FRA· Jun 21 – 27, 2003 | Jun 21 – 27, 2003 | Classical | 7 | 2270 | 8 |
| Jahorina BIH, Team Championship· Jun 22 – 27, 2003 | Jun 22 – 27, 2003 | Classical | 11 | 2528 | 10 |
Grenoble 2nd Grenoble FRA· Jun 21 – 27, 2003 | Jun 21 – 27, 2003 | Classical | 10 | 2294 | 21 |
| BIH Team ChJahorina· Jun 21 – 27, 2003 | Jun 21 – 27, 2003 | Classical | 29 | 2437 | 24 |
2. It Grenoble FRA· Jun 21 – 27, 2003 | Jun 21 – 27, 2003 | Classical | 7 | 2275 | 15 |
Paris NAO GM 2nd Paris FRA· Jun 20 – 27, 2003 | Jun 20 – 27, 2003 | Classical | 9 | 2465 | 15 |
BIH Team Ch Jahorina BIH· Jun 21 – 27, 2003 | Jun 21 – 27, 2003 | Classical | 33 | 2446 | 32 |
TCh-BIH Jahorina BIH· Jun 21 – 27, 2003 | Jun 21 – 27, 2003 | Classical | 69 | 2428 | 195 |
| Ljubljana Open 14thLjubljana· Jun 21 – 27, 2003 | Jun 21 – 27, 2003 | Classical | 57 | 2240 | 46 |
Ho Chi Minh City zt 3.2a women Ho Chi Minh City VIE· Jun 23 – 27, 2003 | Jun 23 – 27, 2003 | Classical | 6 | 2022 | 5 |
Art Skeel Memorial Edmonton CAN· Jun 5 – 26, 2003 | Jun 5 – 26, 2003 | Classical | 7 | 1754 | 5 |
| 14. Ljubljana Open· Jun 23 – 26, 2003 | Jun 23 – 26, 2003 | Classical | 8 | 2394 | 12 |
| 14. Ljubljana Open 2003Ljubljana· Jun 21 – 26, 2003 | Jun 21 – 26, 2003 | Classical | 22 | 2345 | 16 |
Ljubljana SLO, 14. Open Ljubljana SLO· Jun 21 – 26, 2003 | Jun 21 – 26, 2003 | Classical | 90 | 2229 | 142 |
Ch Bosnia & Herzegovina team Jahorina BIH· Jun 21 – 26, 2003 | Jun 21 – 26, 2003 | Classical | 17 | 2413 | 11 |
| 12sen.Brandenburg OpenRowy/Polen (17.06.-25.06)· Jun 17 – 25, 2003 | Jun 17 – 25, 2003 | Classical | 8 | 1903 | 7 |
Brandenburg Seniors Open 12th Rowy POL· Jun 17 – 25, 2003 | Jun 17 – 25, 2003 | Classical | 26 | 1902 | 32 |
| SH.2003.0.00007Chessfriend.com· Jun 25, 2003 | Jun 25, 2003 | Classical | 9 | 2123 | 28 |
| Rowy/Polen (17.06.-25.06)Rowy/Polen (17.06.-25.06)· Jun 17 – 25, 2003 | Jun 17 – 25, 2003 | Classical | 42 | 1836 | 86 |
TCh-BIH women Jahorina BIH· Jun 22 – 25, 2003 | Jun 22 – 25, 2003 | Classical | 20 | 2107 | 30 |
LXVII ch-CRC Cenfotec CRC· Jun 13 – 25, 2003 | Jun 13 – 25, 2003 | Classical | 37 | 2103 | 159 |
| SI.2003.0.00009Chessfriend.com· Jun 25, 2003 | Jun 25, 2003 | Classical | 12 | 1936 | 45 |
Ch Bosnia & Herzegovina (team) women Jahorina BIH· Jun 22 – 24, 2003 | Jun 22 – 24, 2003 | Classical | 6 | 2150 | 5 |
Winnipeg TNT June Open Winnipeg CAN· Jun 3 – 24, 2003 | Jun 3 – 24, 2003 | Classical | 20 | 1840 | 28 |
| Herne Laufer OpenHerne· Jun 18 – 22, 2003 | Jun 18 – 22, 2003 | Classical | 24 | 2091 | 16 |
Harburg Ch 1. A Hamburg GER· Jun 20 – 22, 2003 | Jun 20 – 22, 2003 | Classical | 6 | 2017 | 15 |
NED Team Ch playoff Enschede NED· Jun 21 – 22, 2003 | Jun 21 – 22, 2003 | Classical | 12 | 2321 | 8 |
Winnipeg Open Winnipeg CAN· Jun 20 – 22, 2003 | Jun 20 – 22, 2003 | Classical | 7 | 1830 | 8 |