Event: OTB Club Rapid Championship

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Opponent	Rating	Result
Laurence Duffy	1467	1 - 0
Peter A Nickals	1656	1 - 0
Mark RA Murrell	1945	½ - ½
Philip Staniland	1947	1 - 0
Terry D Whitton	1902	0 - 1
Paul R Barclay	1736	½ - ½

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

1909 = (10653 + 400 * (3 - 1)) / 6)