Event: Leon Garfield Rapid-Play Cup

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Opponent	Rating	Result
Chris Carpenter	1458	0 - 1
Joseph Morris	1391	1 - 0
Clive J Le Baigue	1427	½ - ½
Keith C Findley	1759	0 - 1
Jonny Nicholson	1200	1 - 0
Peter McGill	1597	½ - ½
James Cole	1573	0 - 1
Joseph Morris	1391	0 - 1
Nico Roestorff	1854	0 - 1

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

1383 = (13650 + 400 * (2 - 5)) / 9)