Event: Division 3 West

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Opponent	Rating	Result
Alex Hoyes	0	1 - 0
Jon J Kerr	0	0 - 1
David JW Smith	1364	1 - 0

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

588 = (1364 + 400 * (2 - 1)) / 3)