Event: 5800-max Rapid-play

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Opponent Rating Result
Nigel Foster 1407 0 - 1
Sean Doherty 1611 0 - 1
Nigel Foster 1407 1 - 0
Sean Doherty 1611 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1309 = (6036 + 400 * (1 - 3)) / 4)

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