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championship and cup rows are summarized from FLDE team-board result data."],"narrative":"Esser Ruben's 2025-2026 season currently includes 7 events. Esser Ruben scored 13.5/26 from 26 scored games (11 wins, 5 draws, 10 losses). The average listed opponent rating was 1698. The best listed performance rating was 1855.","links":{"profile":"https://www.p-gengler.com/chess/en/players/esser-ruben-dif0825","seasonPage":"https://www.p-gengler.com/chess/en/players/esser-ruben-dif0825/seasons/2025-2026","json":"https://www.p-gengler.com/chess/api/players/esser-ruben-dif0825/seasons/2025-2026","search":"https://www.p-gengler.com/chess/api/search?q=Esser%20Ruben"}}