Event: Northamptonshire Silver King League

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Opponent Rating Result
Martin Crichton 1953 0 - 1
Simon P Gay 2028 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1991 = (3981 + 400 * (1 - 1)) / 2)

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Opponent Rating Result
Martin Crichton 1953 ½ - ½
Martin Crichton 1953 ½ - ½
Nicholas J Caldwell 1765 1 - 0
Romilly Ilersic 1902 1 - 0
John Thomson 1760 1 - 0
Nigel P Young 1870 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2067 = (11203 + 400 * (3 - 0)) / 6)