Event: Division 2

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Opponent	Rating	Result
James J McDonnell	1861	0 - 1
David Smith	1529	1 - 0
ARMAN NILIM	1753	0 - 1

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

1581 = (5143 + 400 * (1 - 2)) / 3)