Event: B(2) Division

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Opponent	Rating	Result
Tim Hilton	1968	½ - ½
Armand Catz	1832	0 - 1
Ondrej Chalupa	1846	1 - 0

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

1882 = (5646 + 400 * (1 - 1)) / 3)