Event: Double Rapid Tournament

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Opponent	Rating	Result
Michael Brant	930	1 - 0
Andrew Pilton	0	1 - 0
Paul Terry	1823	0 - 1
Andrew T Watson	1452	1 - 0
Robert J Arthurton	1532	0 - 1
Keith May	1120	1 - 0
Alan Ward	1418	½ - ½
Tony Lee	1264	1 - 0

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

1342 = (9539 + 400 * (5 - 2)) / 8)