American cyclist Chloé Dygert (Canyon–SRAM Zondacrypto)has launched a fundraising campaign to help former teammate and decorated track cyclist Sarah Hammer-Kroening, who faces a series of severe medical complications, mounting medical bills and an uncertain road ahead.
Dygert, a celebrated cyclist in her own right, announced the fundraiser on behalf of Hammer-Kroening, describing her longtime friend as “strong, independent, deeply proud, and a devoted mother” who would “never ask for help like this herself, even when she truly needs it.”
Hammer-Kroening, widely regarded as one of the most accomplished track cyclists in U.S. history, is a four-time Olympic medalist and an eight-time world champion. She competed in three Olympic Games (2008, 2012, 2016) and was a cornerstone of Team USA’s success in the team pursuit. Dygert and Hammer-Kroening became close during the buildup to the Rio 2016 Olympic Games, which were Hammer’s final Games and Dygert’s first. Dygert described Hammer-Kroening as a “big sister, steady, protective, and always looking out for me.”
According to Dygert, Hammer-Kroening’s health issues began suddenly on May 14, 2025, when she experienced “severe and uncontrollable pain in her left arm.” The following morning, she was rushed to the emergency department and ultimately life-flighted for emergency vascular surgery.
“Any support helps,” Dygert said. “And if you are not in a position to donate, simply sharing this page means more than you know.”
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