Event: Hillingdon Div 2

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Opponent Rating Result
Austin Ivan 1845 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2245 = (1845 + 400 * (1 - 0)) / 1)

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Opponent Rating Result
Arthur Cann 1278 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1678 = (1278 + 400 * (1 - 0)) / 1)