NED Ch Open Dieren NED· 1988 | 1988 | Classical | 16 | 2326 | 12 |
| Biel IIBiel II· 1988 | 1988 | Classical | 8 | 2426 | 9 |
OHRA Amsterdam NED· 1988 | 1988 | Classical | 11 | 2586 | 39 |
Biel-B Biel SUI Biel-B Biel SUI· 1988 | 1988 | Classical | 10 | 2425 | 11 |
OHRA-B Amsterdam NED· 1988 | 1988 | Classical | 26 | 2457 | 105 |
URS-ch55 Moscow RUS· 1988 | 1988 | Classical | 16 | 2532 | 29 |
| OHRAAmsterdam II· 1988 | 1988 | Classical | 11 | 2486 | 11 |
Biel II Biel SUI· 1988 | 1988 | Classical | 13 | 2442 | 46 |
| Moskou ch-URSMoskou ch-URS· 1988 | 1988 | Classical | 21 | 2548 | 156 |
Open Naestved DEN· 1988 | 1988 | Classical | 12 | 2361 | 6 |
Naestved Open Naestved DEN· 1988 | 1988 | Classical | 45 | 2307 | 31 |
| Thessalloniki· May 18 – Jun 16, 1988 | May 18 – Jun 16, 1988 | Classical | 9 | 2081 | 8 |
XII Mitropa Cup Aosta ITA· Jun 4 – 10, 1988 | Jun 4 – 10, 1988 | Classical | 8 | 2423 | 5 |
Watson Farley Williams Challenge London ENG· May 27 – Jun 7, 1988 | May 27 – Jun 7, 1988 | Classical | 8 | 2459 | 8 |
Specialiste Estival Montreal CAN· Jun 4 – 5, 1988 | Jun 4 – 5, 1988 | Classical | 7 | 1822 | 7 |
| Copenhagen OpenCopenhagen Open· 1988 | 1988 | Classical | 12 | 2383 | 7 |
Belfort FRA Belfort FRA· 1988 | 1988 | Classical | 11 | 2409 | 6 |
NLD Ch Hilversum ch-NED· 1988 | 1988 | Classical | 7 | 2428 | 6 |
Barcza Memorial Debrecen HUN· 1988 | 1988 | Classical | 11 | 2356 | 12 |
World Cup Belfort FRA· 1988 | 1988 | Classical | 21 | 2613 | 147 |
Hilversum ch-NED Hilversum ch-NED· 1988 | 1988 | Classical | 12 | 2428 | 49 |
Copenhagen Open Copenhagen DEN· 1988 | 1988 | Classical | 39 | 2325 | 42 |
| Kopenhagen OpenKopenhagen open· 1988 | 1988 | Classical | 57 | 2339 | 250 |
Debrecen Debrecen HUN· 1988 | 1988 | Classical | 17 | 2372 | 70 |
| Wuerzburg Open 4thWuerzburg· May 24 – 28, 1988 | May 24 – 28, 1988 | Classical | 90 | 2131 | 167 |
Memorial Day Blitz Ch Los Angeles, CA USA· May 27, 1988 | May 27, 1988 | Blitz | 7 | 2405 | 7 |
Amsterdam Optiebeurs Amsterdam NED· May 22 – 27, 1988 | May 22 – 27, 1988 | Classical | 5 | 2674 | 5 |
Yerevan Erevan ARM Yerevan Erevan ARM· May 21 – 24, 1988 | May 21 – 24, 1988 | Classical | 13 | 2501 | 19 |
Paul Keres Memorial (13th) Vancouver BC CAN· May 20 – 23, 1988 | May 20 – 23, 1988 | Classical | 25 | 2167 | 18 |
Yerevan Erevan ARM· May 16 – 19, 1988 | May 16 – 19, 1988 | Classical | 25 | 2384 | 96 |
Longueuil Open Longueuil CAN· Apr 6 – May 13, 1988 | Apr 6 – May 13, 1988 | Classical | 8 | 2141 | 5 |
Erevan Erevan ARM· May 13, 1988 | May 13, 1988 | Classical | 11 | 2505 | 10 |
| ISR Ch 24thIsrael· Apr 9 – May 10, 1988 | Apr 9 – May 10, 1988 | Classical | 15 | 2360 | 76 |
Ontario Ch Toronto CAN· Apr 30 – May 9, 1988 | Apr 30 – May 9, 1988 | Classical | 9 | 2215 | 34 |
| Regional-Liga NSRegional-Liga NS· Feb 21 – May 8, 1988 | Feb 21 – May 8, 1988 | Classical | 13 | 2240 | 10 |
| Southfield, Mich.Southfield, Mich.· Jan 10 – May 8, 1988 | Jan 10 – May 8, 1988 | Classical | 12 | 1958 | 14 |
Hungary HUN· May 8, 1988 | May 8, 1988 | Classical | 69 | 2246 | 48 |
| Regional-Liga NSRLNS 8788· Feb 21 – May 8, 1988 | Feb 21 – May 8, 1988 | Classical | 28 | 2151 | 26 |
Match DEN-SWE Slagelse DEN· May 7 – 8, 1988 | May 7 – 8, 1988 | Classical | 10 | 2390 | 7 |
Regionalliga NordS 8788 GER· Jan 10 – May 8, 1988 | Jan 10 – May 8, 1988 | Classical | 98 | 2147 | 163 |
Alberta Ch Calgary CAN· 1988 | 1988 | Classical | 6 | 2098 | 6 |
Capablanca mem-A Cienfuegos City CUB· 1988 | 1988 | Classical | 13 | 2477 | 57 |
| Tungsram CupNagykanizsa· 1988 | 1988 | Classical | 13 | 2277 | 74 |
London WFW London ENG· 1988 | 1988 | Classical | 13 | 2461 | 60 |
Haninge Haninge SWE· 1988 | 1988 | Classical | 14 | 2564 | 59 |
Optiebeurs Amsterdam NED· 1988 | 1988 | Classical | 5 | 2686 | 28 |
| Billerica Open 2ndBillerica· Apr 30, 1988 | Apr 30, 1988 | Classical | 9 | 2283 | 9 |
Toronto Toronto CAN· Feb 28 – Apr 24, 1988 | Feb 28 – Apr 24, 1988 | Classical | 12 | 2287 | 12 |
| Regionalliga NordS 8788RLNS 8788· Jan 10 – Apr 17, 1988 | Jan 10 – Apr 17, 1988 | Classical | 9 | 2048 | 7 |
Quebec Ch qual. 3 Montreal CAN· Apr 16 – 17, 1988 | Apr 16 – 17, 1988 | Classical | 9 | 1853 | 7 |