Event: Plate

Opponent Rating Result
Vassily M Sagyaman 1573 1 - 0
Malcolm S Harding 1466 1 - 0
Michal Bylica 1885 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1908 = (4924 + 400 * (2 - 0)) / 3)

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