Event: Roger Goldsmith Div 2

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Opponent	Rating	Result
Zach Galloway	1100	0 - 1
Jake Williamson	0	1 - 0
Zach Galloway	1100	0 - 1

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

600 = (2200 + 400 * (1 - 2)) / 3)