Event: 6-Board Division 1

Opponent Rating Result
Steve R Hodge 186 0 - 1
David W Stephenson 163 0 - 1
John W Atkinson 164 0 - 1
A Peter Owst 139 ½ - ½
David W Stephenson 163 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-157 = (815 + 400 * (0 - 4)) / 5)

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