Event: Gordon Nobbs League

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Opponent Rating Result
Alin Ionescu 1707 ½ - ½
Alin Ionescu 1707 0 - 1
Michael H Stinton-Brownbridge 1905 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1773 = (5319 + 400 * (1 - 1)) / 3)

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