Event: League Division 1

Opponent Rating Result
Clive W Davies 1766 ½ - ½
Richard D Hardy 1978 0 - 1
David Shapland 1936 ½ - ½
Dale H Cullum 1896 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1894 = (7576 + 400 * (1 - 1)) / 4)

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