Race Discovery
National Brain Tumor Ride
National Brain Tumor Ride logo

National Brain Tumor Ride

Waltham, Massachusetts, United States
May 17, 2026
Cycling

About this race

Our Gray Nation Endurance® community will come together on May 17, 2026 for the National Brain Tumor Ride, our signature endurance event, to raise awareness and funds to support the needs of patients with brain tumors and their families. Put meaning behind your miles and ride in person, plan an event in your area, or participate virtually. Your community is here. Let’s discover a cure, together. 

Pick your distance

Cycling

10 Mile Ride

May 17, 2026 16.1K 9:00 AM
Free
Closed

25 Mile Ride

May 17, 2026 40.2K 8:45 AM
Free
Closed

50 Mile Ride

May 17, 2026 Ultra 7:00 AM
Free
Closed

Virtual

May 17, 2026 Virtual 7:00 AM
Free
Closed

Running

Volunteer/Here to Cheer

May 17, 2026 Volunteer/Here to Cheer 7:00 AM
Free
Closed

Typical race-day weather

Based on 2 years of historical conditions on this event's race dates in Waltham.

Temp (°C)
Minimum temperature (race-day average) 14.6° / Maximum temperature (race-day average) 24.3°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-day average) 14.6° / Maximum feels like — heat index / wind chill (race-day average) 24.3°
Wind (km/h)
Average wind speed (race-day average)
21.9
Precip (mm)
Average precipitation (race-day average)
0.2mm
Humidity
Average relative humidity (race-day average)
65.0%

About Waltham

National Brain Tumor Ride takes place in Waltham, Massachusetts, United States. The local timezone is America/New_York.

View on Google Maps

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Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.

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