Event: Summer Rapid

Opponent Rating Result
Peter Hiscock 1570 1 - 0
Philip N Birks 1700 1 - 0
David A Hallen 1754 1 - 0
Roger W Walker 1825 0 - 1
Joseph P Alcock 1579 0 - 1
Alan M Willett 1248 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1746 = (9676 + 400 * (4 - 2)) / 6)

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