She’s running Boston in celebration of survivors and those still fighting

"Boston is more than just a race—it’s a symbol of strength, resilience, and the power of a community that refuses to back down in the face of cancer."

March 18, 2025

1 minute to read

In our “Why I’m Running” series, Boston Marathon athletes share what’s inspiring them to make the 26.2-mile trek from Hopkinton to Boston.

Name: Karen Koutsavlis
Age: 44
From: Auburn, N.H.

Twenty years ago, I ran my first Boston Marathon for Dana-Farber in honor of my cousin, who was battling a brain tumor. Thanks to the groundbreaking cancer work they do, he is still thriving today.

That experience ignited something in me—a connection to a cause that has only deepened over the years.

Since then, I’ve seen firsthand the impact of Dana-Farber’s work in my own family. I’ll never forget bringing my father there while he was battling multiple myeloma. That day, I saw a renewed sense of optimism in him—something cancer had tried to steal. I will forever be grateful for the care and hope Dana-Farber gave him.

As a way to celebrate the two decades since that first marathon, I’m running again for the same cause.

My list of reasons has grown. I’m running in celebration of survivors, in support of those still fighting, and in memory of those we’ve lost far too soon (including my dad). Each step I take is for them. It’s a commitment and experience I want to share with my husband and two children.

Boston is more than just a race—it’s a symbol of strength, resilience, and the power of a community that refuses to back down in the face of cancer.

I’m honored to be part of the Dana-Farber Marathon Challenge once again, and I hope my miles help bring us closer to a world without cancer.