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Live classical, rapid & blitz ratings for every active FIDE-rated player worldwide. Search, compare, and explore national standings.
595K+
Players Indexed
180+
Countries
12K+
Titled Players
Monthly
Updated
Classical Rating
1899
Period: 2026-07
1899
Peak: 1899
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Peak: —
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Peak: —
Milestone Tracks
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Federation
NED
Active Status
Active
FIDE Title
None
Birth Year
1962
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Koster, age 64 has played 2 rated periods with a classical range of 1899–1899. Their rating is holding steady (0 net over the full period). Currently at their peak rating of 1899. Rating volatility is very stable (avg 0 pts/month).
➡️ Stable
1899
0
Very stable (0/mo)
Computed from Koster's FIDE rating history. Updated monthly.