Event: Thornaby Rapidplay Ladder

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Opponent	Rating	Result
Manuel Lopez	1000	0 - 1
Chris Swales	1841	0 - 1
David Pizzi	1495	1 - 0

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

1312 = (4336 + 400 * (1 - 2)) / 3)