Event: Alekhine group

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Opponent	Rating	Result
Michael Perry	1551
Steve Piercey	2116	0 - 1
Mithran Subburaj	1247
Pierre Roy	0
Zach Sheppard	1469	0 - 1
Karan Abbasi	1443
Sridhar Balachandar	0
William Castaneda	1776	0 - 1
Majid Mashayekh	1882	0 - 1
Luke Vallis	1958	0 - 1
Alex Jackson	0
Michael Perry	1551
Steve Piercey	2116	0 - 1
Pierre Roy	0
Zach Sheppard	1469	1 - 0
Karan Abbasi	1443
Mithran Subburaj	1247
Sridhar Balachandar	0
William Castaneda	1776	0 - 1
Majid Mashayekh	1882	0 - 1
Luke Vallis	1958	0 - 1
Alex Jackson	0	1 - 0
Mithran Subburaj	1304	1 - 0

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

1442 = (19706 + 400 * (3 - 9)) / 12)