"Kristoffersen not only neglected to mark him, but was actually looking the other way when Krum raised his right hand to show that he had secured a Bulgarian victory in the 42nd minute."
-- match report Bulgaria v Norway, Daily Prophet, 6 June 2014 (Pm)
A member of one of the "favourite" teams to win the Quidditch World Cup 2014 tournament, Kristoffersen caught the Snitch in their match against the Ivory Coast, but failed to triumph over Viktor Krum in the quarter-final match against Bulgaria (she was looking the other way when he caught it). She did not take the defeat gracefully, banging her head against the floor until pulled away by a teammate (Pm).
Other canon notes and references
Sigrid comes from the Old Norse name Sigríðr, which was derived from the elements sigr "victory" and fríðr "beautiful, fair" (Behind the Name).
Kristoffersen is a Scandinavian surname meaning "son of Christopher". The name Christopher derives from the Greek Χριστοφορος (Christophoros) meaning "bearing Christ" (from Χριστος (Christos) and φερω (phero) "to bear, to carry") (Behind the Name).
From the Web
Screenshots of the Daily Prophet's coverage of the 2014 Quidditch World Cup: http://imgur.com/a/AXutv