She walked off on her own, refusing a stretcher.
On the infamous ninth curve on the luge track, Sweeney wobbled out of control, eventually falling off her sled and sliding several feet. She actually said she was okay at that point, and it was confirmed that she had no broken bones or anything of that nature, though she was then taken to the hospital for further evaluation.
American luger Emily Sweeney appeared to have a strong start in the final heat of her competition, but as she rounded Curve 9, the track's most treacherous spot, she lost control.
Sue Sweeney, center, the mother of Emily Sweeney of the United States, cries out as her daughter crashes on the final run during the women's luge final at the 2018 Winter Olympics in Pyeongchang, South Korea. I'm going to get an X-ray on my back after this, but I wanted to have the last word.
Competitors had been warned about the dangers of curve nine and the track was shut as emergency staff quickly rushed to her aid.
"I'm okay", she told reporters.
"I know I have a lot of support and I'm sorry that's how it ended".
The 24-year-old athlete went sideways first before careening out of control up the wall with the impact of the crash throwing her off her toboggan.
"She's lost it, Emily Sweeney has really lost it", the commentator said.
Watch Sweeney's crash in the videos below, but please note that some viewers may find the footage distressing.
German lugers Natalie Geisenberger and Dajana Eitberger won the gold and silver in the event, while Alex Gough of Canada took the bronze.