Event: St Andrews Intermediate Tournament

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Opponent	Rating	Result
David Atkin	1326	½ - ½
Dan Malbon	1300	0 - 1
David P Thrun	1345	½ - ½
Alison Hyde	1200
Paddy McLeary	1200
Cameron Johnson	1541
Eddie Burrell	850
Ronald Botham	1112

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

1190 = (3971 + 400 * (0 - 1)) / 3)