The Mia Hamm Foundation is one of several organizations that honors bone marrow donors for their gift of life, celebrates the lives of bone marrow recipients, and raises awareness about the need for more bone marrow donor volunteers. 

In particular, the need for bone marrow donors from ethnically and racially diverse communities is especially acute. To aid in the face of these struggles, the Mia Hamm Foundation and the National Marrow Donor Program® (NMDP), a non-profit that facilitates unrelated marrow and cord blood transplants as a single point of access, have committed themselves to diversifying the NMDP Registry of potential bone marrow donors and cord blood units. 

Mia's Personal Commitment: Mia has participated in several events to support those suffering from bone marrow disease. In addition to her work with the Mia Hamm Foundation, she is a former member of the board of directors for The Marrow Foundation and has joined the NMDP Registry to encourage others to volunteer as potential bone marrow donors.

Celebrity Soccer Challenge: Mia Hamm and her husband Nomar Garciaparra host an annual Celebrity Soccer Challenge, a charity exhibition match benefitting Children's Hospital Los Angeles and the Mia Hamm Foundation.

Donations raised by The Mia Hamm and Nomar Garciaparra Celebrity Soccer Challenge benefit bone marrow transplant patients and their families, with the proceeds directed towards Children's Hospital Los Angeles specifically. The Celebrity Soccer Challenge, which has raised important funds and registered as many as 700 new donors in given years, finds its inspiration in its predecessor: "The Garrett Game," a similarly star studded affair named after Mia's late brother, who died in 1997 from a bone marrow disease.