During her competitive career Disl was a 19-year veteran of biathlon and was a five time olympian, with two Olympic gold medals from the 4 × 7.5 km relays in 1998 and 2002.

Dubbed "Turbo-Disl" by the German media, she lay second in the Biathlon World Cup table at the beginning of the Olympics behind fellow country-woman Kati Wilhelm, and finished fifth in the overall standings for the 2004/05 season.

On 18 December 2005, Disl was named "German sportswoman of the year", becoming the first biathlete awarded, and beating speed skater Anni Friesinger and discus thrower Franka Dietzsch.

Like many German Nordic skiers, Disl was working in the military as a border patrol guard during her sporting career.

[2] She also served as biathlon coach at the local club, including for her own children, but citing that 'them having fun was more important than results'.