Event: Div 1 (Silver Queen 23)

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Opponent	Rating	Result
Brendan Rooney	1715	0 - 1
Claude Masseron	1636	0 - 1
Alan Brookbanks	1532	½ - ½

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

1361 = (4883 + 400 * (0 - 2)) / 3)