Event: Clay Cross Champs 2018-19

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Opponent	Rating	Result
D Philip Morgan	147	½ - ½
Brian Lever	118	1 - 0
Anthony L Natt	168	0 - 1
Paul Williams	140	0 - 1

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

43 = (573 + 400 * (1 - 2)) / 4)