Event: Summer League (Pool A)

Opponent Rating Result
David Lacey 1761 ½ - ½
Harry Davison 1840 ½ - ½
Robert Ashworth 1883 ½ - ½
David Lacey 1761 0 - 1
Harry Davison 1840 0 - 1
Robert Ashworth 1883 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1628 = (10968 + 400 * (0 - 3)) / 6)

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