Cha started skating in 2007. He performed traditional Korean tightrope dancing in 2011[5] and holds the record as the youngest tightrope dancer (eoreum-sani)[6] of Namsadang at eight years old.
Due Cha having previously finished second at the 2022 Korean Universiade, he was selected to represent South Korea at the 2023 Winter World University Games in January, where he would finish seventh.[10]
Cha began the season in October by competing at the 2024 Korean Universiade and Asian Games Qualifiers, where he finished fourth. With this result, Cha was selected to represent South Korea at the 2025 Winter World University Games.[11][12]
^"-피겨- 최소은·차영현, 종합선수권 2그룹 쇼트프로그램 1위" [Figure skaters Choi So-eun and Cha Young-hyun win national championships in Junior short program] (in Korean). Yonhap. 2017-01-16. Retrieved 2017-10-16.
^"국립민속국악원, 추석 맞아 한가위 연희난장 공연" [National Folk & Cultural Center, Chuseok performance]. Gukje News (in Korean). 2016-09-08. Retrieved 2017-10-16.
^"[피겨 주니어GP] 이시형, 7차 대회 男싱글 최종 10위...차영현 16위" [Men single figure skater Lee Si-hyeong takes 10th place and Cha Young-hyun takes 16th place in 7th junior GP series] (in Korean). SPOTV. 2017-10-15. Retrieved 2017-10-16.
^ ab"Younghyan CHA: 2018/2019". International Skating Union. Archived from the original on 23 February 2019. Retrieved 19 August 2023.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
^ ab"Younghyan CHA: 2021/2022". International Skating Union. Archived from the original on 30 October 2021. Retrieved 19 August 2023.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
^"Younghyun CHA: 2024/2025". International Skating Union. Archived from the original on 24 September 2024. Retrieved 24 September 2024.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
^"Younghyun CHA: 2023/2024". International Skating Union. Archived from the original on 11 March 2024. Retrieved 24 September 2024.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
^"Younghyun CHA: 2022/2023". International Skating Union. Archived from the original on 19 January 2023. Retrieved 17 November 2022.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
^"Younghyan CHA: 2019/2020". International Skating Union. Archived from the original on 9 March 2021. Retrieved 19 August 2023.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
^"Younghyun CHA: 2017/2018". International Skating Union. Archived from the original on 23 December 2017. Retrieved 19 August 2023.{{cite web}}: CS1 maint: bot: original URL status unknown (link)