At the 2010 Winter Olympics, she competed in four events. In her first event, the 500 m, she was disqualified in the quarterfinals.[4] Three days later, she competed in the 1500 m. Despite setting an Olympic record in the semifinals, she finished third in the final.[5] In the 3000 m relay, her team finished first but was disqualified by one of the track judges.[6] In the 1000 m, she won a bronze medal, finishing behind Wang Meng and Katherine Reutter.
After the 2014–15 season Park switched to long track speed skating where she qualified to represent South Korea at the 2015 World Single Distance Speed Skating Championships. She had originally planned on retiring from speedskating altogether after Sochi but wanted to challenge herself to skate in long track and also have the honor of competing in her home country in the 2018 Winter Olympics. She became the first South Korean athlete to ever compete in short track and long track speedskating at the Olympics.[7]
In July 2022, Park announced her first child's pregnancy via Instagram.[8] In January 2023, Park's agency announced Park had given birth to their first daughter on January 12.[9]
^Park Ro-sa (July 7, 2022). "박승희, 깜짝 임신 발표 "태명은 '금복이'...엄마들 정말 대단해" [Park Seung-hee, surprise pregnancy announcement "My name is 'Geumbok'... Mothers are really amazing] (in Korean). Ilgan Sports. Retrieved July 7, 2022 – via Naver.
^Go, Jae-wan (January 12, 2023). "[종합] "만삭의 D라인 공개하더니"…박승희, 결혼 1년 9개월만에 딸 출산" [[Comprehensive] "The full-term D-line was revealed"... Park Seung-hee gives birth to a daughter after 1 year and 9 months of marriage] (in Korean). Sports Chosun. Retrieved January 12, 2023 – via Naver.