Event: Worcester & District League

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Opponent	Rating	Result
Anthony Rimmington	1541	½ - ½
Paul Bignall	1503	1 - 0
Chris Lee	1612	1 - 0
Anthony Rimmington	1541	1 - 0
Seamus Flynn	1608	1 - 0
Ian M Truscott	1618	½ - ½

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

1837 = (9423 + 400 * (4 - 0)) / 6)