Event: West of England Counties Online Championship

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Opponent	Rating	Result
John KF Stephens	1200	0 - 1
Timothy Headlong	1200	0 - 1
John Jenkins	2061	0 - 1
George I Miller	1947	0 - 1

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

1202 = (6408 + 400 * (0 - 4)) / 4)