Event: Division 1

Opponent Rating Result
Richard J McMichael 2199 ½ - ½
Joel Bird 2082 0 - 1
Paul Chantrell 146 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1342 = (4427 + 400 * (0 - 1)) / 3)

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