She also took part in three FIS Nordic Junior World Ski Championships between 2005 and 2007, with her best personal result being 7th in 10 km pursuit in Italian Tarvisio in 2007.

She debuted at World Cup on December 1, 2007, in Finnish Kuusamo where she finished 61st in classical sprint.

As of January 2022, Antsybor's best World Cup individual finish was 19th at a 7.6 km event in Liberec, Czech Republic, on December 16, 2008, and best World Cup team finishes were 11th in team relay in Lahti, Finland, on January 24, 2021 (together with Kaminska, Olekh, and Kovalova), and in Gällivare, Sweden, on November 21, 2010 (together with Nesterenko, Hryhorenko, and Shevchenko).

She competed at the 2014 Winter Olympics in Sochi where she was 47th in skiathlon, 35th in mass start, 12th in relay (together with Antypenko, Hryhorenko, and Shevchenko) and 34th in sprint.

[3] Antsybor was nominated for Ukrainian national team at the 2018 Winter Olympics in Pyeongchang.