Event: Kenneth Appleby (U1700)

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Opponent	Rating	Result
Haider Shah	0	0 - 1
Simon Bartle	1205	0 - 1
Angelica Rowe	1531	0 - 1
David Halpin	1173	1 - 0
Phil Higgins	1300	1 - 0

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

962 = (5209 + 400 * (2 - 3)) / 5)