Event: Bedfordshire Individual Championship

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Opponent	Rating	Result
Michael Page	1467	1 - 0
Dominic Watson	1707	½ - ½
Graham E Borrowdale	2006	1 - 0
Thomas P O'Brien	1964	½ - ½
Brian J Valentine	1922	½ - ½
Michael T Botteley	1928	½ - ½

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1966 = (10994 + 400 * (2 - 0)) / 6)