Event: MCA Division 2

Opponent Rating Result
Brian Butterworth 1478 0 - 1
Danny Green 1615 ½ - ½
Paul Jordan 1696 ½ - ½
Michael Delaney 1700 1 - 0
Russell Cowell 1642 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1626 = (8131 + 400 * (1 - 1)) / 5)

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