TSF 5K for Rare Neuroimmune Disorders
- Date
- September 13, 2026
- Location
- 11 Town House Rd, Weston, MA
- Distance
- 5K Run
From the Organizer
After suddenly losing vision and feeling in her body, Sumaira was diagnosed with neuromyelitis optica (NMO), a rare autoimmune disease that affects the central nervous system resulting in vision loss and paralysis. Two months after her diagnosis, she started The Sumaira Foundation (TSF), a now global nonprofit organization dedicated to raising awareness of rare neuroimmune disorders, building communities of support for patients and their caregivers, funding research and advocating on behalf of patients. TSF is proud to be patient-led, patient-powered, science-driven and therapy-agnostic. The organization is proud to call 102 patients, caregivers and clinicians TSF Ambassadors representing 35 countries.
A Personal Message from Teresa Clark (TSF Ambassador):
"As many of you may know, almost three years ago, in May 2022, I was diagnosed with a rare autoimmune disease called NMO - Neuromyelitis Optica.
This 5k has been something I've wanted to do for years now, so I'm excited to finally begin this annual race to raise awareness.
Early detection of NMO improves quality of life!" Read more on Terry's Story Here: https://www.sumairafoundation.org/terrys-nmo-story-the-perfect-storm/
Since 2018, TSF has funded $1m in rare neuroimmune disorder research, fellowship and journal publications as a result of grassroot fundraising. The aim of the 5K is to raise enough funds to support 2 additional research projects in 2025 through the Foundation’s SPARK and Unicorn grants. Explore TSF's research portfolio: https://www.sumairafoundation.org/tsf-funded-research/
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
74°
Typical Low
53°
Chance of Rain
31%
Based on US Climate Normals data from Natick, 6 mi from the venue.
Host City
About Weston, MA
Elevation
262 ft
Nearest Airport
BOS
Boston Logan International Airport · 15 mi
Time Zone
Eastern Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
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What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at TSF 5K for Rare Neuroimmune Disorders, put it on the calendar, and turn “someday” into a start date.
97
Days to train
- Race
- TSF 5K for Rare Neuroimmune Disorders
- Date
- September 13, 2026
- Location
- 11 Town House Rd, Weston, MA
Coming Up
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From Endurance Grid
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Frequently Asked Questions (FAQs)
- What is the TSF 5K for Rare Neuroimmune Disorders?
- TSF 5K for Rare Neuroimmune Disorders is a running race held in Weston, Massachusetts on September 13, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the TSF 5K for Rare Neuroimmune Disorders?
- Sunday, September 13, 2026 in Weston, Massachusetts at 11 Town House Rd, Weston, MA. Check the event page for exact start times and wave schedules.
- How do I register for the TSF 5K for Rare Neuroimmune Disorders?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
TSF 5K for Rare Neuroimmune Disorders
Sep 13, 2026