[1] She was a flatwater canoeist and downhill skier before moving to cross country skiing at sixteen.

Her training during summer involved riding a mountain bike and when the sport become popular she decided to begin racing.

In 1995, she won a bronze medal at the European Championships,[3] and she also qualified for the 1996 Summer Olympics in Atlanta.

Although cross-country skiing remained her main sport and her summer training was usually lighter, she took preparations for Atlanta seriously.

She practised in cold weather in Šumava while great heat was expected for the Atlanta race.

[5] On 31 July 1996, she became the first Czech female athlete to compete on both Winter and Summer Olympics when starting in the mountain bike race at the Georgia International Horse Park in Conyers, Georgia, United States.

The race was run in Hakuba, Japan on the tracks ready for 1998 Winter Olympics[10][11] On 17 February 2005, she won the 10 km free at the Nordic skiing World Championships.

In late 2006, Neumannová was named an honorary vice president of the organizing committee for the FIS Nordic World Ski Championships 2009 in Liberec, the Czech Republic.