Event: Roger Goldsmith Div 2

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Opponent	Rating	Result
Dan Mciver	800	1 - 0
Zach Galloway	1100	0 - 1
Zach Galloway	1100	1 - 0

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

1133 = (3000 + 400 * (2 - 1)) / 3)