Event: D&DCL Div 1

Opponent Rating Result
Andrew Stevens 1955 ½ - ½
John Potter 2147 0 - 1
Andy Townsend 1885 0 - 1
Kevin J Dalley 1882 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1767 = (7869 + 400 * (0 - 2)) / 4)

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