Event: LCA Division 2

Opponent Rating Result
Robert J Arthurton 1617 0 - 1
Paul A Chaplin 1465 ½ - ½
Dean Wilding 1673 0 - 1
Bernard Pratten 1657 0 - 1
Vincent Barker 1161 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1195 = (7573 + 400 * (0 - 4)) / 5)

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