Event: Spring OTB Division 3

Opponent Rating Result
Andy Laurence Coe 1831 ½ - ½
Tom Gideonse 1640 0 - 1
Joel Hutchinson 1866 0 - 1
Karl Moorcroft 1693 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1658 = (7030 + 400 * (1 - 2)) / 4)

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