Event: 5800 max Rapid-play

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Opponent Rating Result
Donald Billows 1461 ½ - ½
Muhammed Mehmood 1228 1 - 0
Donald Billows 1461 1 - 0
Muhammed Mehmood 1228 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1445 = (5378 + 400 * (2 - 1)) / 4)

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