Groner was born in Pittsburgh Pennsylvania. She competed in running as at college level, but then stopped competing, married and had three children. She took up running again when she was thirty years old, running her first marathon in 2011. Her first coach was Hector Matos, and from 2019 she was coached by Steve Magness. Her personal best on marathon is 2:29:09, from Rotterdam Marathon in April 2019. Representing the United States at the 2019 World Athletics Championships in Doha, she placed sixth in the women's marathon.