WCMKostygova, MargaritaFIDE ID 557021044Games0Wins2Draws2Losses25%ScorePeak rating2027Latest rating2027First seenJul 15, 2026Last seenJul 19, 2026Recent gamesDateWhiteResultBlackEventOpeningJul 19, 2026Kholyavko1–0KostygovaRound 4: Kholyavko, Mariya - Kostygova, MargaritaFrench Defense: Classical Variation, Shirov-Anand VariationJul 18, 2026Kostygova½–½ZhangRound 3: Kostygova, Margarita - Zhang, JieminSicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto VariationJul 16, 2026Kostygova0–1OlimovaRound 4: Kostygova, Margarita - Olimova, RukiyaCaro-Kann Defense: Advance Variation, Tal VariationJul 15, 2026Alavi½–½KostygovaRound 1: Alavi, Mahsa - Kostygova, MargaritaKing's Pawn Game