Event: Individual Handicap

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Opponent	Rating	Result
John A Metcalfe	68	½ - ½
John A Metcalfe	68	1 - 0
Graham Brook	0	0 - 1

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

45 = (136 + 400 * (1 - 1)) / 3)