Event: 5800 max Rapid-play

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Opponent Rating Result
Chaniru Ranasinghe 1409 0 - 1
Isaac Greep 1150 ½ - ½
Chaniru Ranasinghe 1409 0 - 1
Isaac Greep 1150 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1180 = (5118 + 400 * (1 - 2)) / 4)

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