Julia Timpf has announced she will run the 2026 TCS New York City Marathon on Sunday, November 1, to raise funds for Memorial Sloan Kettering Cancer Center (MSK).
The announcement was made in mid-May 2026 by her sister, Fox News personality Kat Timpf, through social media posts on Instagram and Facebook.
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The charity campaign is organized through Fred's Team, the official running program of MSK.
The initiative holds deep personal meaning for the family after Kat Timpf underwent a double mastectomy at the facility in March 2025.
The surgery took place just hours after Kat Timpf gave birth to her first child. Julia Timpf expressed gratitude for the care her sister received.
"Because of MSK, my sister is now cancer-free.
They gave her the opportunity to be a mother to my adorable little nephew, and I feel so grateful," Julia Timpf said.
She described the marathon as a tribute to the hospital and acknowledged the challenge ahead.
"Running 26.2 miles will be a challenge, but it's nothing compared to the battles faced by those impacted by cancer every day.
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My hope is that every mile I run brings us closer to breakthroughs in cancer treatment," she added.
Fred's Team has raised more than $128 million for cancer research since 1995. Runners with guaranteed charity entry must meet a minimum fundraising commitment of $4,500.
The program honors Fred Lebow, co-founder of the New York City Marathon, who received brain cancer treatment at MSK in 1991.
Funds support research across various cancer types.
The 26.2-mile course spans all five boroughs of New York City, starting in Staten Island and ending in Central Park.
The 2026 event expects over 54,000 runners, with staggered wave starts between 9:40 AM and 11:00 AM.
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Standard training for first-time marathoners typically lasts 12 to 20 weeks. Fundraising activities will continue throughout the training cycle and on race day.
