Event: Div 5 - P H Charles Trophy

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Opponent Rating Result
Ethan Ball 1372 ½ - ½
Mark Kirkham 1511 ½ - ½
Matthew Nunns 1285 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1523 = (4168 + 400 * (1 - 0)) / 3)

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