Event: Super League (rapid)

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Opponent	Rating	Result
Robert Ashworth	1876	0 - 1
Richard Freeman	1991	0 - 1
Nigel Hosken	2103	0 - 1

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

1590 = (5970 + 400 * (0 - 3)) / 3)