Event: Individual Rapid Championship

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Opponent	Rating	Result
Alun Richards	1690	0 - 1
Aditya Verma	1149	0 - 1
Simon Gathern	1688	1 - 0
Adrian Walker	0	1 - 0
David Lacey	1702	1 - 0

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

1326 = (6229 + 400 * (3 - 2)) / 5)