Marathon Runner Finishes 110 Miles Days After Chemo

Nancy Neff didn't let cancer stop her from running toward something bigger than herself.

This weekend, thousands of runners braved record-breaking cold temperatures at Jacksonville's DONNA Marathon, an annual race that raises money for breast cancer research and patient support. Among them was Neff, who has turned her own breast cancer journey into a powerful story of resilience and giving back.

Neff became the first breast cancer survivor ever to complete the DONNA Ultra, a grueling 110-mile race that pushes even the most experienced athletes to their limits. The accomplishment alone would be remarkable for anyone, but Neff's timing makes it even more extraordinary.

Just days after finishing her final chemotherapy treatments, she laced up her running shoes again. This time, she tackled the DONNA Half Marathon, proving that determination doesn't take breaks for recovery.

The DONNA Marathon has become a beacon of hope in the breast cancer community since its founding. Every dollar raised goes directly to supporting patients and funding research that brings the medical community closer to better treatments and eventual cures.

Why This Inspires

Neff's story reminds us that healing isn't just about what happens in hospital rooms. For some people, recovery means reclaiming their strength in visible, powerful ways. By running these races, Neff isn't just proving something to herself—she's showing other survivors what's possible on the other side of treatment.

Her decision to return to running so quickly after chemo also highlights an important shift in cancer care. More doctors now encourage patients to stay active during and after treatment when possible, recognizing that physical activity can actually support recovery and improve quality of life.

Every step Neff takes raises awareness and funds that could help the next person diagnosed. She's turned her personal battle into fuel for a larger fight, one that benefits an entire community of patients, survivors, and families touched by breast cancer.

The frigid temperatures at this year's race couldn't freeze the warmth of what Neff and thousands of other runners accomplished together.