Event: Division 2

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Opponent	Rating	Result
Simon Webber	1707	½ - ½
Mark Heffer	1662	0 - 1
Armando Galletti	1715	0 - 1

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

1428 = (5084 + 400 * (0 - 2)) / 3)