Event: EXOL Rapid 2 (G10/5) Open - Jan 11

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Opponent	Rating	Result
James Evans	0	0 - 1
Jay Sharman	1647	1 - 0
Dai Harris	1501	1 - 0
David Spearman	2000	0 - 1

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

1287 = (5148 + 400 * (2 - 2)) / 4)