Event: Beverley Club Championship

Opponent Rating Result
Douglas Vleeshhouwer 166 ½ - ½
Edward S Oxley 141 ½ - ½
J Gerry Johnstone 128 ½ - ½
R Malcolm Hara 124 0 - 1
Steve Hughes 92 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

130 = (651 + 400 * (1 - 1)) / 5)

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