Event: Derby & District Division 1

Opponent Rating Result
Frank Richmond 1922 1 - 0
John M Potter 2153 ½ - ½
Peter Ackley 2030 ½ - ½
Andy Townsend 1892 1 - 0
Andrew Stevens 1951 ½ - ½
Anthony L Natt 1896 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2174 = (11844 + 400 * (3 - 0)) / 6)

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