Event: Roger Goldsmith Div 2

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Opponent	Rating	Result
Isaac Kim	1472	1 - 0
Nikolay Starodubcevs-Snaiders	1400	0 - 1

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

1436 = (2872 + 400 * (1 - 1)) / 2)