Event: Division 2

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Opponent	Rating	Result
Ben Graff	1759	½ - ½
James Peel	0	1 - 0
Arthur Hibbitt	1687	1 - 0

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

1415 = (3446 + 400 * (2 - 0)) / 3)