Event: MCA Division 3

Opponent Rating Result
Peter Mellor 1695 0 - 1
Chris Latham 1746 ½ - ½
Mark S Wadsworth 1718 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1586 = (5159 + 400 * (0 - 1)) / 3)

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