Event: Week 3

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Opponent Rating Result
S Ali Arshad 1215 1 - 0
Colin Abell 1490 ½ - ½
David E Shiers 1683 ½ - ½
David A Hallen 1481 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1567 = (5869 + 400 * (1 - 0)) / 4)

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