Event: Division Four

Opponent Rating Result
Michael Share 129 ½ - ½
Stuart Black 115 ½ - ½
Chris C McConkey 145 ½ - ½
Julie C Wilson 136 0 - 1
Paul Heeney 107 1 - 0
Richard F Collett 84 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

186 = (716 + 400 * (2 - 1)) / 6)

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