Event: Bedfordshire Individual Championship

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Opponent	Rating	Result
Aleksandar Juhasz	1585	1 - 0
Luke Singleton	1848	1 - 0
Brian J Valentine	1910	1 - 0
Stephen C Ledger	2145	½ - ½
Robert Whiteside	1943	½ - ½
James Gardner	2060	½ - ½

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

2115 = (11491 + 400 * (3 - 0)) / 6)