Event: D&DCL Div 1

Opponent Rating Result
Norman J Davies 1713 1 - 0
Andrew Robins 1750 ½ - ½
Steven J Burke 1935 1 - 0
David J Pickering 1737 1 - 0
Steven J Burke 1935 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2134 = (9070 + 400 * (4 - 0)) / 5)

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