Event: Dons Club Challengers

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Opponent Rating Result
David E Hall 1914 ½ - ½
Alexander New 2025 0 - 1
Jim McAvoy 1823 1 - 0
Geoffrey R Moore 2091 0 - 1
Madhurima De 1330
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1863 = (7853 + 400 * (1 - 2)) / 4)

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