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We’re going the extra mile to End NF.

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NF Endurance

The Children’s Tumor Foundation NF Endurance Team gives participants the opportunity to run, bike, or swim in endurance events across the country. Get a guaranteed spot in premier and often sold-out races, participate in running or cycling events around the world, take on a new challenge with an obstacle course or triathlon…you can even “Choose Your Own Challenge” and pick any adventure you’d like to tackle to benefit CTF. 

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CTF Expands World Marathon Majors (WMM) Partnerships!

CTF has recently added the TCS London Marathon, the TCS Sydney Marathon, and the Tokyo Marathon to its event roster. NF Endurance athletes now have access to 6 of the 7 coveted WMM events!  To apply for any 2026 event (or 2027 Tokyo), please fill out the application.

All 2026 Events (Tokyo 2027) Application
Logo for the Tokyo Marathon 2026 International Charity, featuring a multicolored geometric circle and bold black and green text.

March 1, 2026

All of CTF’s entries to the 2026 Tokyo Marathon have been filled and we have moved to a Waiting List. To join the Waiting List, please click the button below.

Join the 2026 Waiting List
TCS logo in gradient colors next to the black and white TCS London Marathon logo on a white background.

April 26, 2026

In 2025, CTF sent its first team to the London Marathon! Apply to be part of our team in 2026 by filling out the form below. 

Apply Now for 2026
TCS Sydney Marathon logo featuring the event name in bold text with "presented by ASICS" at the bottom.

August 31, 2025

The team for the 2025 Sydney Marathon is full. To apply for a spot on the 2026 team, please fill out the application below.

Apply Now for 2026
Logo for the BMW Berlin Marathon featuring bold text and a blue graphic of the Brandenburg Gate above horizontal lines.

September 21, 2025

All of CTF’s entries to the 2025 BMW Berlin-Marathon have been filled and we have moved to a Waiting List. To join the Waiting List, please click the button below.

Join the 2025 Waiting List
Bank of America Chicago Marathon logo featuring stylized Chicago skyline and wavy stripes in red and blue.

October 12, 2025

All of CTF’s entries to the 2025 Bank of America Chicago Marathon have been filled and we have moved to a Waiting List. To join the Waiting List, please click the button below.

Join the 2025 Waiting List
Orange stylized Statue of Liberty torch next to the text "tcs NEW YORK CITY MARATHON" on a white background.

November 2, 2025

All of CTF’s entries to the 2025 TCS New York City Marathon have been filled and we have moved to a Waiting List. To join the Waiting List, please click the button below.

Join the 2025 Waiting List

Beyond the Majors; More Races to Run to End NF!

A black logo for the Marine Corps Marathon with a transparent background.

Marine Corps Marathon
Washington, D.C.
October 26, 2025

Join Our Team
Logo for the 2025 Dublin Marathon sponsored by Irish Life, featuring a stylized running figure within a large "D" shape.

Irish Life Dublin Marathon
Dublin, Ireland
October 26, 2025

Join Our Team
Blue poster with text "Athens Marathon The Authentic OPAP," featuring a silhouette of a running person and a bold black zigzag symbol.

Athens Marathon
Athens, Greece
November 9, 2025

Join Our Team
The image features the United Way logo with a yellow and orange check mark and the words "Certified Transparent" beside a silver certification badge.

Valencia Marathon
Valencia, Spain
December 7, 2025

Join Our Team
Life Time Miami Marathon and Half logo with stylized text and an orange graphic in the center.

Miami Marathon
Miami, Florida
January 25, 2026

Join Our Team

No events in your area?

Swim, cycle, run/walk, or choose any event not on our NF Endurance team schedule -- the challenge is up to you! Sign up with the NF Endurance Team and pick the event of your choice to fundraise for the Children’s Tumor Foundation.

Sign Up to Choose Your Challenge

Find a Participant/Team

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162%
$14,907Raised(149%)
149%
$13,848Raised(138%)
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$13,288Raised(266%)
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$10,849Raised(108%)
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$28,309Raised(113%)
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$6,000Raised(120%)
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$5,680Raised(57%)
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$2,050Raised(59%)
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$1,850Raised(37%)
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$1,526Raised(31%)
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$1,215Raised(24%)
24%
$975Raised(10%)
10%
$850Raised(17%)
17%
$225Raised(5%)
5%

Interested in volunteering for an event near you?

Why you should get involved

A young boy holding a sign that says make nf visible.

Make an Impact

Fundraising efforts by our participants help us take steps toward a cure

A group of people posing for a photo.

Find Community

Connect with other athletes in your area and around the world

A woman standing in front of a door with a sign that says i know a fighter.

NF Heroes

Get to know NF Heroes - individuals living with NF - their stories will push you across the finish line

A man and a boy walking down a track wearing t - shirts that say end nff.

Earn Incentives

Earn a variety of fun prizes when you reach fundraising milestones