| 2003 Lebanese Chess Championship· Aug 30 – Sep 6, 2003 | Aug 30 – Sep 6, 2003 | Classical | 13 | 2083 | 10 |
It Open Sants ESP· Sep 2 – 5, 2003 | Sep 2 – 5, 2003 | Classical | 8 | 2235 | 6 |
ALBACETE Ch Albacete ESP· Sep 2 – 5, 2003 | Sep 2 – 5, 2003 | Classical | 14 | 2250 | 11 |
Barreiro U18 2nd Barreiro POR· Aug 28 – Sep 5, 2003 | Aug 28 – Sep 5, 2003 | Classical | 7 | 1903 | 12 |
| Mediteran CupRijeka· Aug 30 – Sep 5, 2003 | Aug 30 – Sep 5, 2003 | Classical | 9 | 2287 | 38 |
| EBSEBS· Jan 5 – Sep 5, 2003 | Jan 5 – Sep 5, 2003 | Classical | 24 | 1774 | 62 |
| Santiago Universidad CatolicaSantiago de Chile· Sep 5, 2003 | Sep 5, 2003 | Classical | 14 | 1848 | 7 |
| BelconnenBelconnen· Jun 27 – Sep 5, 2003 | Jun 27 – Sep 5, 2003 | Classical | 30 | 1536 | 31 |
| Modelo CC U2000 3rdUruguay· Aug 8 – Sep 5, 2003 | Aug 8 – Sep 5, 2003 | Classical | 39 | 1835 | 37 |
| ACT Ch ttBelconnen· Jun 25 – Sep 5, 2003 | Jun 25 – Sep 5, 2003 | Classical | 58 | 1874 | 193 |
Sharjah IM tournamen Sharjah UAE· Aug 29 – Sep 4, 2003 | Aug 29 – Sep 4, 2003 | Classical | 6 | 2376 | 5 |
It Sharjah UAE· Aug 28 – Sep 4, 2003 | Aug 28 – Sep 4, 2003 | Classical | 13 | 2313 | 17 |
XXXI C.to Italiano ASCI Silvi Marina ITA· Aug 30 – Sep 4, 2003 | Aug 30 – Sep 4, 2003 | Classical | 6 | 1851 | 5 |
Sharjah Open Sharjah UAE· Aug 28 – Sep 4, 2003 | Aug 28 – Sep 4, 2003 | Classical | 25 | 2260 | 27 |
Open Sharjah UAE· Aug 27 – Sep 4, 2003 | Aug 27 – Sep 4, 2003 | Classical | 42 | 2292 | 48 |
WGM Punat CRO· Aug 27 – Sep 3, 2003 | Aug 27 – Sep 3, 2003 | Classical | 11 | 2263 | 29 |
Punat women Punat CRO· Aug 27 – Sep 3, 2003 | Aug 27 – Sep 3, 2003 | Classical | 9 | 2241 | 18 |
Izmir TUR, European GP 03 Izmir TUR· Aug 25 – Sep 3, 2003 | Aug 25 – Sep 3, 2003 | Classical | 46 | 2214 | 50 |
Izmir Open Izmir TUR· Aug 25 – Sep 3, 2003 | Aug 25 – Sep 3, 2003 | Classical | 37 | 2194 | 35 |
| CZE-chT2 0203Czechia· Jan 5 – Sep 3, 2003 | Jan 5 – Sep 3, 2003 | Classical | 150 | 2205 | 271 |
European GP Izmir TUR· Aug 25 – Sep 3, 2003 | Aug 25 – Sep 3, 2003 | Classical | 138 | 2078 | 449 |
European GP, Izmir TUR Izmir TUR· Aug 25 – Sep 3, 2003 | Aug 25 – Sep 3, 2003 | Classical | 47 | 2161 | 41 |
Athens Acropolis (Women) Open Athens GRE· Aug 25 – Sep 2, 2003 | Aug 25 – Sep 2, 2003 | Classical | 24 | 2130 | 26 |
Athens GRE, Acropolis 2003 Athens GRE· Aug 25 – Sep 2, 2003 | Aug 25 – Sep 2, 2003 | Classical | 25 | 2174 | 20 |
| Uslar (25.08.-02.09)Uslar (25.08.-02.09)· Aug 25 – Sep 2, 2003 | Aug 25 – Sep 2, 2003 | Classical | 8 | 1935 | 6 |
Athens GRE, Acropolis (w) 2003 Athens GRE· Aug 25 – Sep 2, 2003 | Aug 25 – Sep 2, 2003 | Classical | 11 | 2162 | 10 |
Acropolis GM Athens GRE· Aug 25 – Sep 2, 2003 | Aug 25 – Sep 2, 2003 | Classical | 10 | 2526 | 40 |
Athens Acropolis Open Athens GRE· Aug 25 – Sep 2, 2003 | Aug 25 – Sep 2, 2003 | Classical | 48 | 2253 | 59 |
Athens Acropolis Athens GRE· Aug 25 – Sep 2, 2003 | Aug 25 – Sep 2, 2003 | Classical | 6 | 2512 | 6 |
Acropolis WGM Athens GRE· Aug 25 – Sep 2, 2003 | Aug 25 – Sep 2, 2003 | Classical | 28 | 2142 | 75 |
ISL Ch Hafnarborg ISL· Aug 24 – Sep 2, 2003 | Aug 24 – Sep 2, 2003 | Classical | 13 | 2281 | 59 |
Acropolis Open Athens GRE· Aug 25 – Sep 2, 2003 | Aug 25 – Sep 2, 2003 | Classical | 58 | 2234 | 99 |
| Centroamer & Caribe U20San Cristobal· 2003 | 2003 | Classical | 11 | 2141 | 6 |
Brasil SB Ch sf 43rd Brasilia BRA· 2003 | 2003 | Classical | 24 | 1950 | 49 |
| Grangemouth OpenGrangemouth· 2003 | 2003 | Classical | 30 | 2161 | 49 |
Labour Day Open Victoria CAN· Aug 30 – 31, 2003 | Aug 30 – 31, 2003 | Classical | 7 | 2060 | 6 |
Staunton Memorial London ENG· Aug 25 – 31, 2003 | Aug 25 – 31, 2003 | Classical | 4 | 2484 | 5 |
| Vadsosjakken-AVadso· Aug 29 – 31, 2003 | Aug 29 – 31, 2003 | Classical | 9 | 2083 | 10 |
Greifswald GER, Ryck-Open 03 Greifswald GER· Aug 28 – 31, 2003 | Aug 28 – 31, 2003 | Classical | 13 | 2193 | 16 |
| New England Open 63rdWindsor Locks· Aug 30 – 31, 2003 | Aug 30 – 31, 2003 | Classical | 22 | 2125 | 22 |
| Moehnesee Cup 29thMoehnesee· Aug 28 – 31, 2003 | Aug 28 – 31, 2003 | Classical | 46 | 2112 | 32 |
Montreal Omnium Open Montreal CAN· Aug 29 – 31, 2003 | Aug 29 – 31, 2003 | Classical | 27 | 2096 | 19 |
London Simpsons 175th London ENG· Aug 25 – 31, 2003 | Aug 25 – 31, 2003 | Classical | 4 | 2484 | 5 |
| Salzbourg (18eme open)Salzbourg· Aug 23 – 31, 2003 | Aug 23 – 31, 2003 | Classical | 16 | 2373 | 17 |
Robin Girard Memorial Quebec CAN· Aug 29 – 31, 2003 | Aug 29 – 31, 2003 | Classical | 23 | 1895 | 19 |
| Labour Day OpenVictoria· Aug 30 – 31, 2003 | Aug 30 – 31, 2003 | Classical | 15 | 1917 | 15 |
HMC Calder Cup A 's-Hertogenbosch NED· Aug 29 – 31, 2003 | Aug 29 – 31, 2003 | Classical | 6 | 2333 | 15 |
125. ch-NY Kerhonkson USA· Aug 30 – 31, 2003 | Aug 30 – 31, 2003 | Classical | 40 | 2124 | 43 |
| Kalamazoo op1Kalamazoo· Aug 29 – 31, 2003 | Aug 29 – 31, 2003 | Classical | 48 | 1679 | 45 |
Salzburg AUT, 18. Open Salzburg AUT· Aug 23 – 31, 2003 | Aug 23 – 31, 2003 | Classical | 56 | 2219 | 101 |