Event: Summer League Section 2

Opponent Rating Result
Paul A Allison 1773 1 - 0
Chris J Matthews 1833 0 - 1
John G Cooper 2313 ½ - ½
F Hal Jorna 1630 ½ - ½
Andrew D Bettley 1799 1 - 0
David Atkin 1350 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1916 = (10698 + 400 * (3 - 1)) / 6)

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