Koelmans, Jan WillemFIDE ID 10115884Games0Wins2Draws2Losses25%ScorePeak rating1869Latest rating1783First seenMay 12, 2024Last seenDec 23, 2025Recent gamesDateWhiteResultBlackEventOpeningDec 23, 2025Koelmans0–1ZechaRound 3: Koelmans, Jan Willem - Zecha, OscarNimzo-Indian Defense: Reshevsky VariationMay 12, 2024Ronner1–0KoelmansRound 4: Ronner, Micha - Koelmans, Jan WillemSicilian Defense: Najdorf Variation, Main LineMay 12, 2024Koelmans½–½ElferinkRound 3: Koelmans, Jan Willem - Elferink, LeonQueen's Pawn Game: Colle SystemMay 12, 2024Koelmans½–½NobbeRound 1: Koelmans, Jan Willem - Nobbe, LarsKing's Indian Defense: Sämisch Variation, Sämisch Gambit
