Timpf Sisters Raise $400,000 in Marathon Fundraiser
Julia Timpf ran the New York City Marathon to support breast cancer research at Memorial Sloan Kettering.
Updated on Nov. 2, 2026 in Cancer
Julia Timpf ran the New York City Marathon on Fred's Team, the official Memorial Sloan Kettering team, to raise money for breast cancer research. A joint fundraiser with sister Kat Timpf surpassed $400,000 in donations by Sunday afternoon.
Why it matters
The fundraiser follows Kat Timpf's 2025 breast cancer diagnosis and treatment at Memorial Sloan Kettering, and the sisters' family history of the disease gives the effort personal weight. For New York City readers, it highlights local support for research at a major Manhattan cancer center.
Donations rose from about $125,000 on Thursday to $400,530 by Sunday afternoon, with 100% of funds directed to Memorial Sloan Kettering labs that research more than 400 cancer types. The final total after the campaign closes has not been reported.
The players
Kat Timpf
Kat Timpf is a television personality and co-host of Gutfeld! who publicly shared her breast cancer diagnosis and treatment.
Julia Timpf
Julia Timpf is Kat Timpf's sister who ran the New York City Marathon to raise money for breast cancer research.
Memorial Sloan Kettering Cancer Center
Memorial Sloan Kettering Cancer Center is a major cancer hospital and research institution in Manhattan that treated Kat Timpf and receives the fundraiser's donations.
The details
Kat Timpf asked viewers on her 38th birthday show to donate instead of giving gifts, and the sisters set up a joint fundraiser for Memorial Sloan Kettering research. Julia Timpf, enrolled in the center's RISE program, ran the marathon after her mother and aunt both faced breast cancer.
Timeline
2025: Kat Timpf is diagnosed with breast cancer hours after giving birth and undergoes a mastectomy.
February 2026: Kat Timpf returns to Gutfeld! full-time.
October 2026: Kat Timpf announces she is pregnant again.
Thursday, October 30, 2026: The birthday show launches the fundraiser.
Sunday, November 1, 2026: The fundraiser reaches $400,530 and the New York City Marathon is held.
Big Picture
The campaign channels private donations into the research labs of Memorial Sloan Kettering Cancer Center, which conducts work across more than 400 cancer types. It extends the institution's funding base through a celebrity-driven, donor-matching style of campaign.
Donations to Memorial Sloan Kettering support laboratory research across many cancer types, which may affect future treatment options for patients. Readers interested in supporting cancer research can give directly through the center's programs.
The takeaway
Family history and personal diagnosis can turn a private cancer experience into public support for research, and small donations collectively reached more than $400,000 here. Readers affected by breast cancer can ask their providers about institutional research programs and clinical trials.
Further reading
Explore more cancer coverage on the New York City health desk.
Source note: This article includes information reported by Mediaite.
