Jakub Kostak
Prague Regionals (2026-04-25)Placement446/558Record2/6Prev. Elo1020New Elo966 (−54)Prev. Rank#6156New Rank#9356 (▼3200)
Gdansk Regionals (2025-11-01)Placement296/418Record3/5Prev. Elo1020New Elo1020 (±0)Prev. Rank#5502New Rank#5511 (▼9)
Lille Regionals (2025-10-25)Placement525/679Record3/5Prev. Elo1075New Elo1020 (−55)Prev. Rank#3275New Rank#5482 (▼2207)
Birmingham Regionals (2025-01-18)Placement176/571Record5/3Prev. Elo1049New Elo1075 (+26)Prev. Rank#3489New Rank#2660 (▲829)
Gdansk Regionals (2024-11-02)Placement195/478Record4/4Prev. Elo1000New Elo1049 (+49)Prev. Rank-New Rank#3296 (new)