Event: Derby & District Division 3

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Opponent	Rating	Result
Norman W Parkin	1476	0 - 1
Douglas Bramley	1341	½ - ½
Anushka M. Ramawickrama	1716	0 - 1
Andy Bacon	1404	0 - 1
Andre Cockburn	1521	0 - 1
Oliver Cureton	1362	0 - 1

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

1137 = (8820 + 400 * (0 - 5)) / 6)