Maine Marathon
Francesca D'Alfonso running the 2025 Maine Marathon
Key Info
Join the Marr Fund team in the Maine Marathon, Half Marathon, or Relay
Experience peak fall foliage, rolling hills, scenic views of the Portland skyline, and more on this beautiful out-and-back course on Sunday, October 4. Since 2015, the Marr Fund team has raised more than $3.3 million for the Josephine and John Marr Alzheimer’s Research Fund.
You can run solo, join a relay team, or start your own team. All fitness levels are welcome. Please contact mainemarathon@mgb.org or fill out the form below to join our team and help change the devastating trajectory of Alzheimer’s disease for generations to come.
We began running the marathon in 2015. Now, it has become an annual event that we look forward to, as it is so much fun and brings together so many.”
Race details
Race as an individual, join a relay team, or start your own team! Whether you participate in person or virtually, you’ll receive a race-day shirt and the chance to earn fundraising prizes. Funds raised will benefit the work of the Josephine and John Marr Alzheimer’s Research Fund. Your participation will make a profound difference in the prevention and treatment of Alzheimer’s disease.
In-person race (marathon, half marathon, or relay)
- Fundraising requirement: $150 by Thursday, October 1
- Registration fee: Maine Marathon race fee (separate from fundraising)
- Full marathon, half marathon, and relay options are available on Sunday, October 4.
Virtual race
- Fundraising requirement: $100 by Thursday, October 1
- Registration fee: none
- Join us from anywhere in the world and complete your race October 2-4.
Frequently asked questions
These are some of the questions we hear most often from prospective participants. We are here to help! If you don’t see a question answered below, please contact us at mainemarathon@mgb.org.
When is race day?
In-person race day is Sunday, October 4, 2026. Virtual participants can pick a day, time, activity, and location that works for them October 2–4, 2026. More information will be provided to participants leading up to race day.
How do I register for the Marr Fund team?
Step 1: Determine your participation level.
- You have the option to race in the marathon or half marathon as an individual, start your own relay team as a team captain, or join a relay team as a teammate. Decide which distance is best for you — there are no wrong answers!
- Once you’ve determined your participation level, you’re ready to register.
Step 2: Register with the Maine Marathon to secure your bib.
Please ensure you use the correct link below based on your participation level. Registering through the wrong link may cause you to be charged incorrectly. All participants must register with the Maine Marathon event to secure a bib for race day.
- Marathon and half marathon participants: Register here
- Relay participants:
- Team captains: Register here
- Teammates: Register here
Step 3: Register with the Marr Fund team and create your fundraising page.
- All participants must register on GoFundMe Pro to officially join the Marr Fund team and start fundraising. Complete this step no later than September 3 to confirm your shirt size for the race.
- Register here – NEED LINK ONCE BUILT
Have questions while you’re registering? Please contact mainemarathon@mgb.org for assistance.
How long are the races?
You have four options to participate in the Maine Marathon with the Marr Fund team:
- Marathon: 26.2 miles
- Half marathon: 13.1 miles
- Relay event (groups of two to four individuals): 26.2 miles total
- Leg 1: 6.1 miles
- Leg 2: 8.8 miles
- Leg 3: 5.7 miles
- Leg 4: 5.6 miles
- Virtually: Any activity or distance you choose
All fitness levels, for both runners and walkers, are welcome to participate!
I can’t attend in person. Is there another option?
Yes! You can participate virtually from any location October 2–4. Register on GoFundMe Pro to officially join the Marr Fund team. While virtual participants do not need a Maine Marathon bib, we will send you a Marr Fund team shirt and ask you to send us a photo of your virtual race moment.
What is the fundraising requirement?
By joining, each person on the Marr Fund team agrees to their individual fundraising requirement. The requirement is $150 for in-person participants and $100 for virtual participants. If you don’t complete your fundraising requirement by October 1, 2026, at 6 am EST, the credit card on file will be charged the remaining balance.
Am I responsible for any other costs or fees outside of fundraising?
Yes. In-person teammates are responsible for the Maine Marathon registration fee that is dependent on your participation level. All fees are separate from individual fundraising requirements.
2025 Marr Fund team photos
What we support
John Marr and his children launched the Josephine and John Marr Alzheimer’s Research Fund to fuel innovative research collaborations to prevent Alzheimer’s disease.
Named for John and his beloved wife, Josephine, the fund is inspired by Josephine’s courageous battle with Alzheimer’s disease. The Marr family — together with our world-renowned researchers — are focused on finding a way to stop Alzheimer’s disease altogether.
Run with us
If you are interested in joining the Marr Fund team this year, please fill out the form below, and we will contact you with more information.
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The Maine Marathon
The Maine Marathon, Half Marathon, and Marathon Relay take place on an out-and-back course with rolling hills and views of the Portland skyline.