Event: 4-Board Division 1

Opponent Rating Result
Chris J Matthews 147 ½ - ½
Douglas Vleeshhouwer 172 ½ - ½
Joe Varley 155 ½ - ½
Stephen Crow 150 1 - 0
John E Sugden 111 1 - 0
John Thackray 166 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

284 = (901 + 400 * (2 - 0)) / 6)

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