Mikaela Shiffrin parts with coach during world championships

Mikaela Shiffrin is no longer working with her head coach, Mike Day, she announced during the world Alpine skiing championships.

“After working with Mike Day for seven seasons, I’ve decided to move forward with new leadership on my team for the next phase of my career,” Shiffrin said in a statement through her publicist on Tuesday. “I want to thank Mike and acknowledge all of his work and dedication over the last several years.”

SkiRacing.com first reported the news.

Shiffrin and Day’s partnership ceased midway through the world championships: two days before she’s scheduled to race the giant slalom and four days before the slalom in Meribel, France.

ALPINE WORLDS: Results | Broadcast Schedule

Last week, Shiffrin appeared en route to a gold medal in the combined until she skied out three gates from the finish of an aggressive slalom run, taking extra risk to chase down Italian Federica Brignone, who was fastest in the super-G run of the event.

Two days later, she earned silver behind Italian Marta Bassino in the super-G, which is Shiffrin’s fourth-best discipline behind slalom, giant slalom and combined (though combined is no longer contested on the World Cup).

At age 27, she earned a 12th career individual world championships medal, tying retired Norwegian Kjetil Andre Aamodt for the most since World War II.

This fall and winter, Shiffrin put up her best World Cup season in four years, winning a circuit-leading 11 times to reach 85 career World Cup victories, one shy of the record held by Swede Ingemar Stenmark, a slalom and giant slalom star of the 1970s and ’80s.

The World Cup season resumes after the world championships next week.

After serving as men’s technical head coach from 2010-13, Day rejoined U.S. Ski and