Career
Thomas was an allround speed skater, but favored the shorter distances. On 20 March 1999 in the Olympic Oval in Calgary, she broke the world record in 1500 m. by 1.5 seconds, skating in 1.55.50. That weekend she also broke the world record for the combined times for the 500, 1000, 1500 and 3000 m in one tournament (the "mini combination") and reached 4th place in the adelskalender.
In the summer of 2006 she was a participant in the first season of the celebreality show Sterren Dansen Op Het IJs, the Dutch version of Skating with Celebrities, where she ended up in fourth place.
She retired from competitive skating in November 2006. Personal records World records.