Event: Division 2

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Opponent	Rating	Result
Cameron Storey	1815	0 - 1
Freddie Pick	1995	½ - ½
Mike Levene	1900	0 - 1

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

1637 = (5710 + 400 * (0 - 2)) / 3)