Event: D&DCL Div 3

Opponent Rating Result
Garry Sands 1544 0 - 1
Andrew Wathen 1626 1 - 0
Roger W Walker 1621 1 - 0
Ryan Witham 1391 1 - 0
Roger Moors 1540 1 - 0
Tony O'Donovan 1354 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1779 = (9076 + 400 * (5 - 1)) / 6)

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