Event: NSDCA Division 3

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Opponent	Rating	Result
Pawel Stanny	1537	½ - ½
Jay Holt	1000	0 - 1
S Ali Arshad	1231	1 - 0

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

1256 = (3768 + 400 * (1 - 1)) / 3)