Event: Brewood Chess Circle Club Championship

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Opponent	Rating	Result
Andrew Phillips	1473	0 - 1
Daniel Jones	1483	½ - ½
Paul Wright	1876	0 - 1
Thomas Binns	1511	1 - 0
John Sewell	1497	½ - ½

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

1488 = (7840 + 400 * (1 - 2)) / 5)