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Westerhof Siem scored 4/9 from 9 scored games (3 wins, 2 draws, 4 losses). The average listed opponent rating was 944.","links":{"profile":"https://www.p-gengler.com/chess/en/players/westerhof-siem-ned-337","seasonPage":"https://www.p-gengler.com/chess/en/players/westerhof-siem-ned-337/seasons/2025-2026","json":"https://www.p-gengler.com/chess/api/players/westerhof-siem-ned-337/seasons/2025-2026","search":"https://www.p-gengler.com/chess/api/search?q=Westerhof%20Siem"}}