27. Chicago Open 2018 Chicago, IL USA· May 24 – 28, 2018 | May 24 – 28, 2018 | Classical | 74 | 2359 | 121 |
| RB-00359LSS· May 21 – 28, 2018 | May 21 – 28, 2018 | Classical | 7 | 1887 | 21 |
| 1. 4NCL Spring Bank Holiday CongressBasingstoke· May 25 – 28, 2018 | May 25 – 28, 2018 | Classical | 76 | 1862 | 110 |
6. Norway Blitz 2018 Stavanger NOR· May 27, 2018 | May 27, 2018 | Blitz | 11 | 2791 | 54 |
Sharjah Rapid 2018 Sharjah UAE· May 23 – 27, 2018 | May 23 – 27, 2018 | Rapid | 47 | 1986 | 85 |
9. WLC Weekender 2018 Eindhoven NED· May 25 – 27, 2018 | May 25 – 27, 2018 | Classical | 27 | 2100 | 36 |
Montreal Ligue elite du dimanche Montreal CAN· May 26 – 27, 2018 | May 26 – 27, 2018 | Classical | 12 | 2019 | 10 |
1. 4NCL Spring Bank Holiday Congress Basingstoke ENG· May 25 – 27, 2018 | May 25 – 27, 2018 | Classical | 46 | 2083 | 87 |
| We HSK kevat 2018 Helsinki· May 25 – 27, 2018 | May 25 – 27, 2018 | Classical | 18 | 2071 | 31 |
Sherbrooke Open Sherbrooke CAN· May 26 – 27, 2018 | May 26 – 27, 2018 | Classical | 5 | 2078 | 5 |
RSHSH Masters Cup 2018 Moscow RUS· May 19 – 27, 2018 | May 19 – 27, 2018 | Classical | 10 | 2273 | 40 |
ch-MGL 2018 Tsetserleg MGL· May 22 – 27, 2018 | May 22 – 27, 2018 | Classical | 12 | 2300 | 39 |
3. Sat Djenovici May IM Djenovici MNE· May 19 – 27, 2018 | May 19 – 27, 2018 | Classical | 10 | 2164 | 40 |
Ayr Congress Open 2018 Ayr SCO· May 25 – 27, 2018 | May 25 – 27, 2018 | Classical | 25 | 1957 | 43 |
1. Bohumin Open 2018 Bohumin CZE· May 20 – 27, 2018 | May 20 – 27, 2018 | Classical | 58 | 1842 | 144 |
3. Sat Djenovici May FM Djenovici MNE· May 19 – 27, 2018 | May 19 – 27, 2018 | Classical | 5 | 1888 | 25 |
ch-MGL Women 2018 Tsetserleg MGL· May 22 – 27, 2018 | May 22 – 27, 2018 | Classical | 12 | 2031 | 28 |
CHN-RUS Summit Blitz 2018 Qinhuangdao CHN· May 26, 2018 | May 26, 2018 | Blitz | 9 | 2630 | 23 |
16. Somov Memorial 2018 Kirishi RUS· May 15 – 26, 2018 | May 15 – 26, 2018 | Classical | 12 | 2298 | 61 |
CHN-RUS Women Blitz 2018 Qinhuangdao CHN· May 26, 2018 | May 26, 2018 | Blitz | 10 | 2308 | 45 |
GER Ch Youth U18 2018 Willingen GER· May 20 – 26, 2018 | May 20 – 26, 2018 | Classical | 28 | 2185 | 122 |
Delegacio Lleida Open Mollerussa ESP· Apr 14 – May 26, 2018 | Apr 14 – May 26, 2018 | Classical | 29 | 1758 | 39 |
93. ch-ARG Semi-Final Buenos Aires ARG· May 19 – 26, 2018 | May 19 – 26, 2018 | Classical | 133 | 2095 | 445 |
Montreal Vendredi 05 Montreal CAN· May 11 – 25, 2018 | May 11 – 25, 2018 | Classical | 4 | 2205 | 6 |
| RM-00181LSS· Feb 22 – May 25, 2018 | Feb 22 – May 25, 2018 | Classical | 7 | 2241 | 15 |
Sharjah Blitz 2018 Sharjah UAE· May 25, 2018 | May 25, 2018 | Blitz | 47 | 1974 | 72 |
| SB-00532LSS· May 21 – 25, 2018 | May 21 – 25, 2018 | Classical | 7 | 1873 | 13 |
Bundesliga TB 2017-18 Baden-Baden GER· May 24, 2018 | May 24, 2018 | Classical | 18 | 2694 | 10 |
Montcalm CC Ch Quebec CAN· Apr 26 – May 24, 2018 | Apr 26 – May 24, 2018 | Classical | 6 | 1820 | 15 |
| RA-00581LSS· May 21 – 24, 2018 | May 21 – 24, 2018 | Classical | 7 | 2200 | 20 |
Scarborough CC Ch Toronto CAN· Apr 5 – May 24, 2018 | Apr 5 – May 24, 2018 | Classical | 18 | 1793 | 40 |
7. Salento Open 2018 Gallipoli ITA· May 20 – 23, 2018 | May 20 – 23, 2018 | Classical | 7 | 2315 | 5 |
| SM-00392LSS· Mar 28 – May 23, 2018 | Mar 28 – May 23, 2018 | Classical | 8 | 2253 | 23 |
| RC-00219LSS· Apr 18 – May 23, 2018 | Apr 18 – May 23, 2018 | Classical | 7 | 1803 | 11 |
St Louis Summer A Saint Louis USA· May 15 – 23, 2018 | May 15 – 23, 2018 | Classical | 10 | 2627 | 45 |
St Louis Summer B Saint Louis USA· May 15 – 23, 2018 | May 15 – 23, 2018 | Classical | 11 | 2538 | 53 |
| Alexander Cup FinalAshtead· May 22, 2018 | May 22, 2018 | Classical | 16 | 2093 | 8 |
North Eastern Masters GM Herndon USA· May 18 – 22, 2018 | May 18 – 22, 2018 | Classical | 10 | 2443 | 40 |
North Eastern Masters IM Herndon USA· May 18 – 22, 2018 | May 18 – 22, 2018 | Classical | 12 | 2200 | 45 |
ch-ROU 2018 Olanesti ROU· May 14 – 22, 2018 | May 14 – 22, 2018 | Classical | 52 | 2160 | 204 |
ch-ROU Women 2018 Olanesti ROU· May 14 – 22, 2018 | May 14 – 22, 2018 | Classical | 19 | 1888 | 54 |
| OP-04590LSS· May 22, 2018 | May 22, 2018 | Classical | 5 | 1644 | 7 |
3. Kolkata GM Open 2018 Kolkata IND· May 14 – 22, 2018 | May 14 – 22, 2018 | Classical | 114 | 2313 | 201 |
Outaouais Ch Gatineau CAN· Apr 3 – May 22, 2018 | Apr 3 – May 22, 2018 | Classical | 8 | 1858 | 27 |
| FICGS__CHESS__CLASS_C__000254FICGS· May 21, 2018 | May 21, 2018 | Classical | 7 | 1855 | 8 |
May Lviv Tradition IM Lvov UKR· May 16 – 21, 2018 | May 16 – 21, 2018 | Classical | 10 | 2216 | 45 |
43. Keres Mem 2018 Vancouver BC CAN· May 19 – 21, 2018 | May 19 – 21, 2018 | Classical | 33 | 2077 | 59 |
Franken Power Open 2018 Wunsiedel GER· May 17 – 21, 2018 | May 17 – 21, 2018 | Classical | 58 | 1992 | 121 |
BUL Tournament of Champs Pleven BUL· May 14 – 21, 2018 | May 14 – 21, 2018 | Classical | 10 | 2245 | 45 |
12. BPB Limburg Open Maastricht NED· May 18 – 21, 2018 | May 18 – 21, 2018 | Classical | 55 | 2302 | 81 |