Event: Division 2 Rapidplay Cup

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Opponent	Rating	Result
Robert L Jones	1714	1 - 0
Robert L Jones	1714	0 - 1
Andrew J Donnelly	1760	0 - 1
Andrew J Donnelly	1760	1 - 0
Samuel Gaffney	1782	0 - 1
Samuel Gaffney	1782	0 - 1

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

1619 = (10512 + 400 * (2 - 4)) / 6)