Event: 5800 max Rapid-play

Opponent Rating Result
Sean Doherty 1503 0 - 1
Philip C Maybury 1657 ½ - ½
Sean Doherty 1503 ½ - ½
Philip C Maybury 1657 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1580 = (6320 + 400 * (1 - 1)) / 4)

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