Competing in two Winter Olympics, she earned her best finish of eighth in the 4 x 5 km relay at Turin in 2006 and earned her best individual finish of 27th in the 30 km event at Vancouver four years later.

Grygorenko's best finish at the FIS Nordic World Ski Championships was 38th in the 30 km event at Sapporo in 2007.

Her best World Cup finish was 40th at a 10 km event in Estonia in 2009.

[1] All results are sourced from the International Ski Federation (FIS).

This biographical article relating to Ukrainian cross-country skiing is a stub.