Event: Division 3

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Opponent	Rating	Result
Lynne Fursman	1605	0 - 1
Robert Lacey	1555	1 - 0
Ian Webster	1479	1 - 0

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

1680 = (4639 + 400 * (2 - 1)) / 3)