Jang became interested in football while in the second grade at Mungi Elementary School after her younger brother received a football as a present and they started playing together.[4] She joined a football club in the fourth grade and was scouted by Jang Dong-jin, a coach from Shinha Elementary School in Icheon, a school known for its girls' football team.[4][5] She chose to move away from home to pursue football. In 2008, while in the sixth grade, she won the top goalscorer award at the 7th Korean Women's Autumn Football Championship.[4]
Jang was selected to play for South Korea in the 2015 AFC U-19 Women's Championship.[9] The team's third place finish secured them qualification for the 2016 U-20 Women's World Cup, where Jang again represented her country alongside six of her Korea University teammates.[10] She received her first senior team call-up in 2016 and was the only university student to be part of the bronze medal-winning team at the 2018 Asian Games.[11][12]
^ abcRyu, Hyun-ah (1 October 2008). "장창 양, 추계연맹전서 9골 폭발". Chosun Ilbo (in Korean). Retrieved 24 April 2024.
^"신하초교 여자축구 장동진 감독". 이천설봉신문 (in Korean). 1 December 2008. Retrieved 24 April 2024.
^Choi, Du-seon (8 November 2016). "여자축구 절대강자 고려대 여자축구부" [The absolute strength of women's football: Korea University women's football team]. Hankook Ilbo (in Korean). Retrieved 25 April 2024.
^Kim, Hyeong-yeol (12 December 2018). "여자축구 국가대표 장창, 1순위로 WK리그 서울시청행" [Women's football national team Jang Chang heads to Seoul WFC as first pick in WK League]. SBS News (in Korean). Retrieved 25 April 2024.
^Jeong, Seo-yeong (13 May 2022). "'장창 2골' 인천현대제철, 창녕WFC에 3–0 완승" [With 2 goals from Jang Chang Incheon Hyundai Steel win decisive 3–0 victory over Changnyeong WFC]. Vision 21 News (in Korean). Retrieved 25 April 2024.
^Song, Chi-hoon (8 April 2016). "U-20 여자대표팀, 월드컵 대비 첫 소집훈련" [U-20 women's national team holds first camp in preparation for World Cup]. Sports Dong-a (in Korean). Retrieved 25 April 2024.
^Song, Chi-hoon (2 November 2016). "U-20 여자월드컵 최종 엔트리 확정 '4회 연속 8강 도전'" [U-20 Women's world cup latest squad confirmed 'aiming for fourth consecutive quarter finals']. Sports Dong-a (in Korean). Retrieved 25 April 2024.
^"여자축구 국가대표 고려대 장창, 1순위로 WK리그 서울시청 입단" [Women's football national team and Korea U player Jang Chang first pick in WK League, signs with Seoul WFC]. Yeongnam Ilbo (in Korean). 13 December 2018. Retrieved 25 April 2024.
^Choi, Soo-kyung (12 December 2013). "WK리그 여자축구 드래프트 1순위로 서울시청 입단, 장창은 누구?" [First pick in WK League women's football draft signs with Seoul. Who is Jang Chang?]. sports-g.com (in Korean). Retrieved 25 April 2024.