Event: 4th Western Counties Online Championship

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Opponent	Rating	Result
James I Chilton	1782	1 - 0
Alan W Brusey	1989	0 - 1
Michael Hill	1649	1 - 0

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

1940 = (5420 + 400 * (2 - 1)) / 3)