Event: Rapid Play League

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Opponent Rating Result
Oliver Gill 2147 0 - 1
Oliver Gill 2147 0 - 1
Nigel Stansbie 1432 1 - 0
Nigel Stansbie 1432 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1790 = (7158 + 400 * (2 - 2)) / 4)

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