Event: Kenneth Appleby (U1700)

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Opponent	Rating	Result
Stephen Burton	1495	1 - 0
Angelica Rowe	1531	0 - 1
Simon Bartle	1205	1 - 0
Haider Shah	0	1 - 0
Stuart Fortey	0	0 - 1

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

926 = (4231 + 400 * (3 - 2)) / 5)