Event: Derby & District Division 3

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Opponent	Rating	Result
Dean M Hartley	1857	½ - ½
Sam Reed	1391	1 - 0
Philip Sheldon	1618	1 - 0
Joe Parker	1499	1 - 0
Curtis Bennett	0	1 - 0

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

1593 = (6365 + 400 * (4 - 0)) / 5)