Event: Norfolk & Norwich Challengers

Opponent Rating Result
David W Moore 1477 ½ - ½
Malcolm Clarke 1442 1 - 0
Matthew McLaughlan 1751 1 - 0
Joe Ross 1700 0 - 1
Brian J Cunningham 1582 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1670 = (7952 + 400 * (2 - 1)) / 5)

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