| 03sen.EM Mecklenburg/Vorp. OpenPlau am See (06.10.-14.10)· Oct 6 – 11, 2003 | Oct 6 – 11, 2003 | Classical | 7 | 2115 | 5 |
| Guilderland,NYGuilderland,NY· Oct 11, 2003 | Oct 11, 2003 | Classical | 14 | 1455 | 12 |
Winterthur SUI, Open 2003 Winterthur SUI· Oct 4 – 11, 2003 | Oct 4 – 11, 2003 | Classical | 25 | 2185 | 23 |
Klaksvik 2nd Klaksvik FAI· Oct 7 – 11, 2003 | Oct 7 – 11, 2003 | Classical | 7 | 2337 | 15 |
2. It Klaksvik FAI· Oct 7 – 11, 2003 | Oct 7 – 11, 2003 | Classical | 11 | 2224 | 31 |
Open Winterthur SUI· Oct 3 – 11, 2003 | Oct 3 – 11, 2003 | Classical | 51 | 2014 | 41 |
Arctic Cup u16 Salekhard RUS· Oct 5 – 11, 2003 | Oct 5 – 11, 2003 | Classical | 65 | 2168 | 202 |
Salekhard RUS, Arctic Cup U16 2003 Salekhard RUS· Oct 5 – 11, 2003 | Oct 5 – 11, 2003 | Classical | 32 | 2170 | 52 |
Winterthur Open Winterthur SUI· Oct 3 – 11, 2003 | Oct 3 – 11, 2003 | Classical | 59 | 2094 | 73 |
| SH.2003.0.00012Chessfriend.com· Oct 10, 2003 | Oct 10, 2003 | Classical | 12 | 2047 | 55 |
Quebec Montcalm Open 1st Quebec CAN· Sep 18 – Oct 9, 2003 | Sep 18 – Oct 9, 2003 | Classical | 12 | 1822 | 10 |
| Odysseus Efteraars EMT Gruppe 1 2003Soborg· Sep 11 – Oct 9, 2003 | Sep 11 – Oct 9, 2003 | Classical | 6 | 1935 | 14 |
| Odysseus Efteraars EMT Gruppe 2 2003Soborg· Sep 11 – Oct 9, 2003 | Sep 11 – Oct 9, 2003 | Classical | 6 | 1893 | 5 |
First Saturday IM Budapest HUN· Sep 10 – Oct 8, 2003 | Sep 10 – Oct 8, 2003 | Classical | 6 | 2323 | 6 |
Alushta Osen II Alushta UKR· Sep 27 – Oct 7, 2003 | Sep 27 – Oct 7, 2003 | Classical | 15 | 2373 | 25 |
| HullHull· Sep 16 – Oct 7, 2003 | Sep 16 – Oct 7, 2003 | Classical | 6 | 1923 | 8 |
Osen II Alushta UKR· Sep 27 – Oct 7, 2003 | Sep 27 – Oct 7, 2003 | Classical | 16 | 2390 | 87 |
Najdorf U26 qual Open Buenos Aires ARG· Oct 2 – 7, 2003 | Oct 2 – 7, 2003 | Classical | 82 | 2059 | 248 |
Artic Cup u16 Salekhard RUS· Oct 5 – 6, 2003 | Oct 5 – 6, 2003 | Classical | 37 | 2144 | 25 |
Beirut LBA, 1. Mediterranean Ch (m) Beirut LBA· Sep 29 – Oct 5, 2003 | Sep 29 – Oct 5, 2003 | Classical | 7 | 2197 | 5 |
| Posadas qualPosadas· Oct 4 – 5, 2003 | Oct 4 – 5, 2003 | Classical | 9 | 1758 | 9 |
Los Angeles Open Los Angeles, CA USA· Oct 3 – 5, 2003 | Oct 3 – 5, 2003 | Classical | 11 | 2225 | 9 |
| 1. ch-MediterraneanBeirut LIB· Sep 26 – Oct 5, 2003 | Sep 26 – Oct 5, 2003 | Classical | 18 | 2257 | 34 |
| Mediterranean Ch 1stBeirut LIB· Sep 26 – Oct 5, 2003 | Sep 26 – Oct 5, 2003 | Classical | 12 | 2290 | 19 |
Munich Open 23rd Munich GER· Sep 27 – Oct 5, 2003 | Sep 27 – Oct 5, 2003 | Classical | 25 | 2207 | 18 |
Granby Granby CAN· Oct 3 – 5, 2003 | Oct 3 – 5, 2003 | Classical | 11 | 2011 | 10 |
Belgrade 2 nd League Belgrade SRB· Sep 27 – Oct 5, 2003 | Sep 27 – Oct 5, 2003 | Classical | 16 | 2374 | 12 |
Muenchen GER, 23. OIS Muenchen GER· Sep 27 – Oct 5, 2003 | Sep 27 – Oct 5, 2003 | Classical | 41 | 2196 | 54 |
| SUI Team ChSwitzerland· Apr 13 – Oct 5, 2003 | Apr 13 – Oct 5, 2003 | Classical | 42 | 2352 | 33 |
| 1. ch-Mediterranean womenBeirut LIB· Sep 26 – Oct 5, 2003 | Sep 26 – Oct 5, 2003 | Classical | 12 | 2048 | 46 |
LA Open Los Angeles, CA USA· Oct 3 – 5, 2003 | Oct 3 – 5, 2003 | Classical | 24 | 2215 | 20 |
Belgrade SCG, 2. League 03 Belgrade SRB· Sep 27 – Oct 5, 2003 | Sep 27 – Oct 5, 2003 | Classical | 17 | 2241 | 13 |
Monarch Assurance Isle of Man 12th Port Erin IOM· Sep 2 – Oct 5, 2003 | Sep 2 – Oct 5, 2003 | Classical | 70 | 2295 | 64 |
2. League TCh-SCG Belgrade SRB· Sep 27 – Oct 5, 2003 | Sep 27 – Oct 5, 2003 | Classical | 74 | 2308 | 186 |
| 1. Mediterranean Men's ChampionshipBeirut LIB· Sep 26 – Oct 5, 2003 | Sep 26 – Oct 5, 2003 | Classical | 14 | 2298 | 16 |
| Forchheim op-AForchheim· Oct 3 – 5, 2003 | Oct 3 – 5, 2003 | Classical | 30 | 2140 | 72 |
7. Itau Cup Sao Paulo BRA· Sep 27 – Oct 5, 2003 | Sep 27 – Oct 5, 2003 | Classical | 112 | 2140 | 133 |
Monarch Assurance XII Port Erin IOM· Sep 2 – Oct 5, 2003 | Sep 2 – Oct 5, 2003 | Classical | 81 | 2297 | 144 |
Sao Paulo Itau Cup 7th Sao Paulo BRA· Sep 27 – Oct 5, 2003 | Sep 27 – Oct 5, 2003 | Classical | 106 | 2154 | 139 |
Port Erin ENG,12. Monarch Assurance Port Erin IOM· Sep 2 – Oct 5, 2003 | Sep 2 – Oct 5, 2003 | Classical | 59 | 2326 | 62 |
| Forchheim op-BForchheim· Oct 3 – 5, 2003 | Oct 3 – 5, 2003 | Classical | 48 | 1879 | 110 |
Serbia-chT2 Belgrade SRB· Sep 27 – Oct 5, 2003 | Sep 27 – Oct 5, 2003 | Classical | 39 | 2322 | 39 |
9. Rethymnon GRE, ECC Rethymnon GRE· Sep 29 – Oct 4, 2003 | Sep 29 – Oct 4, 2003 | Classical | 10 | 2560 | 5 |
LA Open U2000 Los Angeles, CA USA· Oct 3 – 4, 2003 | Oct 3 – 4, 2003 | Classical | 10 | 2102 | 6 |
Tournament (Elo) Pesaro ITA· Sep 28 – Oct 4, 2003 | Sep 28 – Oct 4, 2003 | Classical | 7 | 2160 | 6 |
| Campionato Europeo di Club· Sep 28 – Oct 4, 2003 | Sep 28 – Oct 4, 2003 | Classical | 13 | 2555 | 8 |
Arhus DEN, Closed 2003 Aarhus DEN· Jul 27 – Oct 4, 2003 | Jul 27 – Oct 4, 2003 | Classical | 6 | 2210 | 7 |
European Club Cup Rethymnon GRE· Sep 28 – Oct 4, 2003 | Sep 28 – Oct 4, 2003 | Classical | 28 | 2332 | 20 |
Tatranske Zruby SVK, Open 2003 Tatranske Zruby SVK· Sep 27 – Oct 4, 2003 | Sep 27 – Oct 4, 2003 | Classical | 46 | 2160 | 32 |
| Corsico Open 28thCorsico· Oct 4, 2003 | Oct 4, 2003 | Classical | 18 | 2068 | 25 |