Event: Division 6

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Opponent	Rating	Result
Jason Turvey	1538	0 - 1
Scott Leadbetter	1671	0 - 1
Paul S Collis	1511	1 - 0

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

1440 = (4720 + 400 * (1 - 2)) / 3)