Event: Gambit Rapidplay

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Opponent	Rating	Result
Boris Krastev	1500	0 - 1
Boris Krastev	1500	0 - 1
Adam Lovatt	1482	1 - 0
Adam Lovatt	1482	1 - 0
Leo Beacroft	1502	1 - 0
Leo Beacroft	1502	1 - 0
Florian Biermann	1965	0 - 1
Florian Biermann	1965	0 - 1
John R Huthwaite	1825	0 - 1
John R Huthwaite	1825	0 - 1

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

1575 = (16548 + 400 * (4 - 6)) / 10)