Career
She previously competed in single skating and is the 2006–2007 German Junior national bronze medalist. Gierok initially competed as a single skater. She made her senior debut during the 2007-2008 season, winning the 2008 North Rhine-Westphalia Trophy in Dortmund, Germany and placing 10th at the German Figure Skating Championships.
After winning the third and final Junior Worlds Qualifier in Oberstdorf and being nominated as first alternate for the 2008 World Junior Figure Skating Championships, she had to end the season to undergo knee surgery.
The German Skating Federation admitted Gierok to the German Junior Team for the season 2008 / 2009. This was the third season she was part of the District of Columbia Team envelope.
In spring 2010, she switched to pair skating, partnering with Florian Just. Karel Fajfr coaches the pair.
They finished 11th in their debut at the event, with a combined total of 118.06 points.
Gierok and Just ended their partnership at the end of the 2011-2012 season. With Just.