Event: Derby & District Division 1

Opponent Rating Result
John C Tompson 2070 1 - 0
Simon N Gilmore 2067 ½ - ½
Edward T Bromilow 1812 0 - 1
Neil Cameron 1657 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2002 = (7606 + 400 * (2 - 1)) / 4)

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