In November 2004, at the age of twelve, Valcepina took part in the Alta Valtellina Trophy for the first time, where she won the all-round competition of the D-Juniors. In the next few seasons she started very successfully in many lower class, but still international races such as the Olympic days in Dresden . After she had again achieved good results at the Alta Valtellina Trophy 2007 in her home town of Bormio, she was used as a B-Junior in the 2008/09 season at the age of sixteen for the first time in the Short Track World Cup . In her fourth race over 500 meters, she achieved tenth place and her first top 10 placement. In Sofia and Dresden she was second with the relay. In the 3000 meter relay, it was not used in the World Cup. She won bronze with the Italian team in 2010 at the domestic team championship in Bormio . In the 2010/11 season she came in third place twice with the season. In the World Cup over 500 m she reached third place with two and one second place, fifth overall. In January 2011 she won two gold and one bronze medal at the Short Track Junior World Championships in Courmayeur . In the same year she won the bronze medal at the European Championships in Heerenveen in the all- around and with the relay. In the 2011/12 season she finished three times in second place and twice in third place over 500 m and thus reached second place in the World Cup over 500 m. In addition, she won the relay in Nagoya . At the European Championships in Mladá Boleslav in 2012 , she won the silver medal with the relay. In addition, she achieved third place over 1500 m and second place over 500 m and thus won the bronze medal in the all-around competition. In the 2012/13 season she was third in the relay at the World Cup in Shanghai and Sochi . At the 2013 European Championships in Malmö , she won eighth place in the relay and in the all-around competition.
In the 2013/14 season Valcepina came under the top ten four times over 500 m and thus reached sixth place in the World Cup over 500 m. In the season she came third three times. At the highlight of the season, the 2014 Olympic Games in Sochi , she won bronze in the 3,000-meter relay. In the 2016/17 season she took second place with the relay at the World Cup in Dresden and Minsk . At the 2017 European Championships in Turin , she was sixth in the all-around competition and won the gold medal with the relay. After third place over 500 m in Dordrecht at the beginning of the 2017/18 season, she achieved third place in Shanghai with the relay and in Seoul over 500 m and thus reached fifth place in the World Cup over 500 m. At the European Championships in Dresden in 2018 , she won the silver medal in the all-around competition and the gold medal over 500 m and 1500 m. At the season highlight, the 2018 Winter Olympics in Pyeongchang , she won the silver medal with the relay. In addition, she achieved 12th place over 1500 m and ninth place over 500 m. In March 2018, she came in tenth place in the all-around competition and fourth in the relay at the World Championships in Montreal . In the 2018/19 season she achieved three victories over 500 m and thus achieved second place in the World Cup over 500 m. In addition, she was second with the season in Turin. At the European Championships 2019 in Dordrecht, she won the silver medal over 500 m. In the following season she achieved first, second and third place each, and second place in the 500 m World Cup. In addition, she won the relay in Nagoya .
Valcepina's younger sister Arianna is also an internationally successful short tracker.