Event: Derby & District Division 1

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Opponent	Rating	Result
John M Potter	2153	½ - ½
Daniel Blumenow	1820	1 - 0
David Latham	2035	0 - 1

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

2003 = (6008 + 400 * (1 - 1)) / 3)