Event: Derby & District Division 1

Opponent Rating Result
Andrew Stevens 1951 ½ - ½
Anthony L Natt 1896 1 - 0
John Molyneux 2136 ½ - ½
Peter Ackley 2030 ½ - ½
Peter Ackley 2030 1 - 0
Andy Townsend 1892 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2189 = (11935 + 400 * (3 - 0)) / 6)

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