Event: Dudley & District League Div 3

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Opponent Rating Result
Paul Bignall 1481 1 - 0
Sam J Green 1453 ½ - ½
Luke Barton 399 0 - 1
Michael J Kitchen 1482 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1104 = (4815 + 400 * (1 - 2)) / 4)

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