Event: Mini League

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Opponent Rating Result
Dave Young 1380 0 - 1
Phil Higgins 1300 0 - 1
Nigel Stansbie 1450 0 - 1
Liam Kennedy 1375 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

976 = (5505 + 400 * (0 - 4)) / 4)

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