Event: 4th Cornwall Spring Open

Opponent Rating Result
Johnathan D Bourne 1907 0 - 1
Clive Rothery 1908 ½ - ½
Jeremy FS Menadue 2075 ½ - ½
William Adaway 1955 1 - 0
David O Collier 1970 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1963 = (9815 + 400 * (1 - 1)) / 5)

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