Event: Brewood Chess Circle Club Championship

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Opponent	Rating	Result
Andrew Phillips	1490	0 - 1
David Blower	1538	0 - 1
John Sewell	1497	1 - 0
Daniel Jones	1486	0 - 1
Paul Wright	1880	½ - ½

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

1418 = (7891 + 400 * (1 - 3)) / 5)