Capablanca Memorial Premier, Havana CUB Havana CUB· May 7 – 22, 1998 | May 7 – 22, 1998 | Classical | 17 | 2450 | 27 |
Capablanca Memorial 33th Premier Havana CUB· May 7 – 22, 1998 | May 7 – 22, 1998 | Classical | 19 | 2443 | 36 |
Presidents Cup Elista RUS· May 7 – 22, 1998 | May 7 – 22, 1998 | Classical | 29 | 2569 | 78 |
| Capablanca Memorial 33th PremierHavana II· May 7 – 22, 1998 | May 7 – 22, 1998 | Classical | 11 | 2377 | 17 |
| Capablanca Memorial Masters II, Havana CUB· May 7 – 22, 1998 | May 7 – 22, 1998 | Classical | 13 | 2204 | 23 |
Capablanca Memorial Masters II Havana CUB· May 7 – 22, 1998 | May 7 – 22, 1998 | Classical | 14 | 2282 | 25 |
Madrid Magistral 7th Madrid ESP· May 11 – 22, 1998 | May 11 – 22, 1998 | Classical | 10 | 2655 | 41 |
Capablanca Memorial Masters II, Havana CUB Havana CUB· May 7 – 22, 1998 | May 7 – 22, 1998 | Classical | 14 | 2282 | 28 |
| Capablanca Memorial Premier, Havana CUBHavana II· May 7 – 22, 1998 | May 7 – 22, 1998 | Classical | 16 | 2400 | 29 |
Capablanca Memorial Masters I, Havana CUB Havana CUB· May 7 – 22, 1998 | May 7 – 22, 1998 | Classical | 14 | 2380 | 44 |
Capablanca Memorial 33th Elite Havana CUB· May 7 – 22, 1998 | May 7 – 22, 1998 | Classical | 13 | 2556 | 40 |
Capablanca Memorial Elite, Havana CUB Havana CUB· May 7 – 22, 1998 | May 7 – 22, 1998 | Classical | 14 | 2549 | 45 |
NOR Team Ch Oslo NOR· May 20, 1998 | May 20, 1998 | Classical | 8 | 2359 | 5 |
Capablanca Memorial Masters I Havana CUB· May 7 – 20, 1998 | May 7 – 20, 1998 | Classical | 16 | 2388 | 25 |
Winnipeg TNT May Open Winnipeg CAN· Apr 5 – May 19, 1998 | Apr 5 – May 19, 1998 | Classical | 9 | 1743 | 14 |
| Open, Toronto CANToronto open· May 15 – 18, 1998 | May 15 – 18, 1998 | Classical | 12 | 2533 | 17 |
Breda m Breda NED· May 7 – 18, 1998 | May 7 – 18, 1998 | Classical | 3 | 2628 | 5 |
Paul Keres Memorial (23rd) Vancouver BC CAN· May 15 – 18, 1998 | May 15 – 18, 1998 | Classical | 20 | 1972 | 17 |
Toronto int. U2100 Toronto CAN· May 15 – 18, 1998 | May 15 – 18, 1998 | Classical | 15 | 2022 | 13 |
| Keres Memorial Open 23thVancouver· May 17 – 18, 1998 | May 17 – 18, 1998 | Classical | 54 | 2143 | 73 |
Gauteng zt Gauteng RSA· May 8 – 18, 1998 | May 8 – 18, 1998 | Classical | 13 | 2124 | 42 |
Toronto Open Toronto CAN· Apr 10 – May 18, 1998 | Apr 10 – May 18, 1998 | Classical | 15 | 2137 | 11 |
| BurnabyBurnaby· May 15 – 18, 1998 | May 15 – 18, 1998 | Classical | 15 | 2149 | 10 |
| Toronto OpenToronto open· May 14 – 18, 1998 | May 14 – 18, 1998 | Classical | 56 | 2298 | 203 |
Gauteng zt women Gauteng RSA· May 8 – 17, 1998 | May 8 – 17, 1998 | Classical | 5 | 2070 | 9 |
| Open, Salsomaggiore Terme ITA· May 14 – 17, 1998 | May 14 – 17, 1998 | Classical | 8 | 2152 | 6 |
| Open, Toronto CAN· May 15 – 17, 1998 | May 15 – 17, 1998 | Classical | 13 | 2317 | 9 |
Winnipeg Manitoba Open Winnipeg CAN· May 16 – 17, 1998 | May 16 – 17, 1998 | Classical | 31 | 1791 | 28 |
Salsomaggiore Terme Open Salsomaggiore Terme,ITA· May 14 – 17, 1998 | May 14 – 17, 1998 | Classical | 33 | 2247 | 54 |
Liechtenstein Open Schaan LIE· May 17, 1998 | May 17, 1998 | Classical | 70 | 2227 | 84 |
Open, Salsomaggiore Terme ITA Salsomaggiore Terme ITA· May 14 – 17, 1998 | May 14 – 17, 1998 | Classical | 20 | 2249 | 16 |
President's Cup Elista RUS· May 7 – 17, 1998 | May 7 – 17, 1998 | Classical | 12 | 2471 | 11 |
CZE Ch women Klatovy CZE· May 8 – 16, 1998 | May 8 – 16, 1998 | Classical | 25 | 2087 | 97 |
Salsomaggiore Terme Open Salsomaggiore Terme ITA· May 14 – 16, 1998 | May 14 – 16, 1998 | Classical | 11 | 2242 | 8 |
Boca Juniors Open Buenos Aires ARG· May 7 – 16, 1998 | May 7 – 16, 1998 | Classical | 82 | 2205 | 153 |
Boca Juniors, Buenos Aires ARG Buenos Aires ARG· May 7 – 16, 1998 | May 7 – 16, 1998 | Classical | 27 | 2359 | 24 |
| CZE Ch (women), Klatovy CZE· May 8 – 16, 1998 | May 8 – 16, 1998 | Classical | 11 | 2020 | 10 |
| ISR Team ChIsrael· Jan 10 – May 15, 1998 | Jan 10 – May 15, 1998 | Classical | 26 | 2464 | 21 |
FSIM Mei Budapest HUN· May 2 – 14, 1998 | May 2 – 14, 1998 | Classical | 13 | 2277 | 28 |
Budapest FS05 IM Budapest HUN· May 2 – 14, 1998 | May 2 – 14, 1998 | Classical | 12 | 2293 | 41 |
| Molde VarturneringMolde· Jan 22 – May 14, 1998 | Jan 22 – May 14, 1998 | Classical | 18 | 1953 | 43 |
| Breda, MatchBreda, Match· May 8 – 13, 1998 | May 8 – 13, 1998 | Classical | 3 | 2628 | 8 |
| Boca Juniors, Buenos Aires ARG· May 7 – 13, 1998 | May 7 – 13, 1998 | Classical | 9 | 2181 | 5 |
FrTCh, Montpellier FRA FRA· May 8 – 11, 1998 | May 8 – 11, 1998 | Classical | 16 | 2533 | 12 |
| FrTCh, Montpellier FRA· May 8 – 11, 1998 | May 8 – 11, 1998 | Classical | 16 | 2134 | 10 |
FRA-Tch Montpellier FRA· May 8 – 11, 1998 | May 8 – 11, 1998 | Classical | 49 | 2346 | 32 |
FRA Team Ch Montpellier FRA· May 8 – 11, 1998 | May 8 – 11, 1998 | Classical | 118 | 2332 | 123 |
FRA Team Ch FRA· Feb 6 – May 11, 1998 | Feb 6 – May 11, 1998 | Classical | 71 | 2365 | 59 |
FrTCh, Montpellier FRA Montpellier FRA· May 8 – 11, 1998 | May 8 – 11, 1998 | Classical | 57 | 2409 | 48 |
| CL3-1998.15IECC· May 10, 1998 | May 10, 1998 | Classical | 6 | 1990 | 10 |