Event: Autumn Tournament

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Opponent Rating Result
Ian Patterson 1210 1 - 0
Neville T Rowden 1228 0 - 1
Ashwin Balkrishna 1276 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1105 = (3714 + 400 * (1 - 2)) / 3)

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