Event: Kenneth Appleby (U1700)

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Opponent	Rating	Result
Stephen Forbes	1505	0 - 1
Stephen Burton	1408	0 - 1
Phil Higgins	1288	1 - 0

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

1267 = (4201 + 400 * (1 - 2)) / 3)