Event: Good Friday Rapidplay

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Opponent Rating Result
Andrew Mowat 1699 0 - 1
Damon Williams 1398 1 - 0
Matthew Hill 1793 0 - 1
Thomas Chapman 1446 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1584 = (6336 + 400 * (2 - 2)) / 4)

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