Event: Division 1

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Opponent	Rating	Result
Ian D Lamb	1568	1 - 0
Jordan Lee	1761	1 - 0
Jon I Lonsdale	1843	0 - 1

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

1857 = (5172 + 400 * (2 - 1)) / 3)