Event: Division 2

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Opponent	Rating	Result
James Irwin	1817	½ - ½
Alonso Paez	1618	0 - 1
Alan J Lewis	1524	0 - 1

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

1386 = (4959 + 400 * (0 - 2)) / 3)