Event: Kenneth Appleby (U1700)

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Opponent	Rating	Result
Ian D Strickland	1612	0 - 1
Steven Hodgson	1320	1 - 0
David Halpin	1159	1 - 0

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

1497 = (4091 + 400 * (2 - 1)) / 3)