Event: Division 1

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Opponent	Rating	Result
Tom Howeson	1844	1 - 0
Joseph A Coburn	1810	0 - 1
Andrew D Smith	1766	0 - 1

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

1673 = (5420 + 400 * (1 - 2)) / 3)