Event: Roger Goldsmith Div 2

Opponent Rating Result
Steve Lovell 1813 0 - 1
Mark Heffer 1697 0 - 1
Shivum Gordon-Shah 1571 0 - 1
Robert L Jones 1701 0 - 1
Alan Watkins 1836 ½ - ½
Charles J Richmond 1604 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1504 = (10222 + 400 * (1 - 4)) / 6)

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