Event: D&DCL Div 2

Opponent Rating Result
Richard P Temple 1458 0 - 1
Paul Hardwick 1300 ½ - ½
Vaughan WG Smith 1593 0 - 1
Vaughan WG Smith 1593 0 - 1
Leslie J Fancourt 1563 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1341 = (7507 + 400 * (1 - 3)) / 5)

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