Event: Bedfordshire Individual Championship

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Opponent	Rating	Result
Stephen C Ledger	2116	1 - 0
Richard T Bodily	1970	½ - ½
Adrian G Elwin	2014	0 - 1
Alexander Potts	1698	0 - 1
Nigel Collins	1509	1 - 0
Aleksandar Juhasz	1592	0 - 1

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

1750 = (10899 + 400 * (2 - 3)) / 6)