Anja Renner was born in
Neuburg an der Donau with a hearing impairment and was diagnosed with
Usher syndrome at the age of 25, a condition affecting both hearing and vision. Due to retinitis pigmentosa, she gradually lost her eyesight and now has less than 10% of her vision remaining. Despite these challenges, she began her triathlon journey at the age of 30, inspired by her husband. She successfully competed in sprint and Olympic distances and qualified for the Ironman 70.3 World Championship. However, due to her progressive vision loss and the physical demands of the sport, she had to forgo participation in the Ironman World Championship in Hawaii. == Career in Paratriathlon ==