PYEONGCHANG, South Korea — Chloe Kim’s gold-medal run on Tuesday had it all — speed, height and difficult tricks.

Maddie Mastro United States Haruna Matsumoto Japan Kelly Clark United States Bronze Arielle Gold United States Queralt Castellet Spain Sophie Rodriguez France Gold Chloe Kim United States Silver Liu Jiayu China Sena Tomita Japan Emily Arthur Australia Gold Chloe Kim United States Silver Liu Jiayu China Bronze Arielle Gold United States Gold Chloe Kim United States Silver Liu Jiayu China Bronze Arielle Gold United States How High Did They Go? This composite image shows competitors at the peak of the first trick in their final run. Two of the competitors are not shown because they executed their first trick on the opposite side of the pipe. Composite image by Joe Ward

Kim’s jumps were some of the highest, giving her enough air time to complete her spins and flips.

Speed leads to height, and Kim’s consistency in both helped her stay on top of her competition.

“You definitely need to have everything going in a good way for it to be a perfect run,” she said.

One of 1080s that Kim executed during the competition. Composite image by Bedel Saget

In her final run, Kim executed back-to-back 1080s, a feat no other woman has landed in competition.

She said that the two 1080s are the hardest parts of the run. After completing three 360-degree rotations in the air, she immediately repeated the trick on the opposite wall of the pipe.

There’s a lot of spinning involved in 1080s to begin with, she said, and going backward for her second one adds to the difficulty.

“Doing it back to back is even crazier because I think once you finish your 10, there’s so much movement and momentum that you carry with you,” the 17-year-old from California said. “But I’m so stoked I was able to put it down.”

Start Method Frontside 1080 Cab 1080 Frontside 900 McTwist Crippler 720 Start Method Frontside 1080 Cab 1080 Frontside 900 McTwist Crippler 720 Kim’s gold-medal run. Composite image by Alexandra Garcia and Jeremy White

Kim saved her most difficult moves for the third and final run, even after she had already secured the gold medal. She led the pack with 93.75 points from her first run.

“Going into my third run I knew that I was taking home the gold,” she said. “But I just knew that I wasn’t going to be completely satisfied taking home the gold and knowing that I could have done better.”

Kim with her family during the event. Margaret Cheatham Williams

So she went “bigger and better,” and landed her back-to-back 1080s. She was awarded 98.25 points out of 100, more than 8 points more than the silver medalist.

“It was the best run that she’s ever done,” said Rick Bower, halfpipe snowboard head coach for the U.S. Snowboard Team.

That final run was to prove to herself that she could put down her best, but she also did it for her grandmother, who came from Seoul, the South Korean capital, to watch her compete.