It is the first national title for the 21-year-old Gehring.
Simon Cho won the men’s 1,000 – his third win this weekend – to claim the men’s overall title despite a back injury.
Gehring won the 500, 1,500, 1,000 and a time trial this weekend at the Utah Olympic Oval.
Katherine Reutter took second in the 1,000 on Sunday, but can’t make up the ground with one race to go to claim a fifth consecutive national title.
WOMEN’S SUPER-G: In Bad Kleinkirchheim, Austria, Fabienne Suter of Switzerland won a super-G race Sunday, while Lindsey Vonn was 18th and failed to finish among the top three in this World Cup event for the first time in nearly three years.
Suter, who was third in Saturday’s downhill, was timed in 1 minute, 9.55 seconds and won for the fourth time in her World Cup career. Tina Maze of Slovenia was the runner-up, 0.34 seconds behind. Anna Fenninger of Austria took third, another 0.40 back. The top American was Julia Mancuso in eighth place.
Vonn was the first starter from the top group, but lacked the strength to be competitive after struggling with a stomach illness over the last week.
Vonn, who won both previous super-G races this season, lost the ideal race line several times and had trouble correcting herself. She finished 1.53 seconds off the lead.
MEN’S SLALOM: In Adelboden, Switzerland, Marcel Hirscher of Austria extended his perfect start to 2012 by winning a World Cup slalom to pad his lead in the overall standings.
Hirscher mastered rapidly worsening conditions on the Kuonisbaergli slope to edge defending overall champion Ivica Kostelic by 0.27 seconds.
Stefano Gross of Italy trailed Hirscher by 0.99 in third. Another Italian, Cristian Deville, had shared the lead with Hirscher after the first run but faded to ninth.
Kostelic moved up to second in the overall standings but trails Hirscher by 230 points.
TOUR DE SKI: In Val di Fiemme, Italy, Justyna Kowalczyk of Poland successfully defended her Tour de Ski title despite finishing second in the final stage Sunday.
Therese Johaug of Norway won the ninth stage in 34 minutes and 17.7 seconds to finish third overall, 3 minutes 57.8 seconds behind Kowalczyk.
Kowalczyk started the 9-kilometer Free Final Climb Pursuit just 11.5 seconds ahead of main rival Marit Bjoergen. The Norwegian tested her all the way up Mount Cermis.