Event: Season 2 Division 3

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Opponent	Rating	Result
Carl Stephens	0	0 - 1
Robert Heyman	1530	0 - 1
Edwin Smith	1638	0 - 1
Jonny Kearney	1350	1 - 0
Jeff Baird	1666	1 - 0

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

1157 = (6184 + 400 * (2 - 3)) / 5)