Event: Macclesfield Individual Championship

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Opponent	Rating	Result
Joachim Trier	140	0 - 1
Geoff Laurence	154	0 - 1
Dave A Risley	175	0 - 1

performance = (sum(opponents ratings) + 400(wins-losses)) / games

-244 = (469 + 400 * (0 - 3)) / 3)