Event: LCA Division 1

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Opponent Rating Result
Joanne Hutchinson 147 1 - 0
Nick P Stead 189 ½ - ½
David H Coates 172 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

169 = (508 + 400 * (1 - 1)) / 3)

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