2026 Wonder Run 5K & Kids Fun Run

About the Event

The 2026 Wonder Run 5K & Kids Fun Run is a staple community event scheduled for Sunday, May 17, 2026, in Wellesley, Massachusetts. Organized by the Wellesley Hills Junior Women’s Club (WHJWC), this event is a key highlight of "Wellesley’s Wonderful Weekend." The race serves a philanthropic purpose, with all proceeds directly funding scholarships for local students and grants for community organizations providing essential services and education.

Race Category	Start Time	Course Details
Wonder Run 5K	8:00 AM	USATF-certified road race; starts/finishes at high school track.
Kids Fun Run (≤6)	9:00 AM	1 lap around the track.
Kids Fun Run (7-10)	9:00 AM	2 laps around the track.

The 5K course is professionally certified, offering runners a scenic and officially measured route through the streets of Wellesley. The Kids Fun Run is specifically capped at 200 participants to ensure a safe and manageable environment on the track. Pre-race logistics include two days of bib pick-ups at local venues Lululemon and Heroes Fitness, encouraging participants to visit local businesses before the Sunday event. The first 150 registrants are also awarded a "swag bag" containing items from various community sponsors.

Wellesley is a highly educated and established community in the Greater Boston area. The town has a deep commitment to its local institutions, evidenced by the broad range of corporate and "Sprint Squad" sponsors supporting the WHJWC, including Roche Bros and Needham Bank. The club itself has been a fixture in the region since 1944, and the Wonder Run represents its largest annual effort to mobilize residents for local causes. The high school track serves as a central hub for the morning, providing a gathering point for families and spectators.

Logistically, parking is conveniently located at Wellesley High School and along Route 16. Event chairs Kristina and Sarah manage the coordination of hundreds of participants and volunteers. Beyond the physical race, the event fosters a strong fundraising environment, with thousands of dollars already raised through personal pledge pages and direct donations. This community-wide effort ensures that the Wonder Run remains a significant contributor to the social and educational fabric of Wellesley.

Races Offered

5K USATF Certified Race | 8AM start

May 17, 2026

straighten

Distance — 5K

terrain

Type — Running

timer

08:00

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$40.00

Kids Fun Run | 9AM start

May 17, 2026

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Distance — 0.4K

terrain

Type — Running

timer

09:00

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$20.00

Weather History

These values represent the 3-year monthly averages for May in Wellesley.

thermostat Temperature

9.5° / 20.3°

wb_sunny Feels like

6.9° / 17.9°

light_mode Avg sunshine hours

10h 2m

water_drop Avg rainfall

3.8 mm

ac_unit Avg snowfall

—

air Avg wind speed

11.4 km/h (Light breeze)

opacity Sweat loss rate

Low

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

High (6.0)

humidity_mid Humidity

70.9%

wb_twilight Sunrise

05:23

nightlight Sunset

19:59

About Wellesley

Learn more about the host city, Wellesley.

Wellesley is a city in Massachusetts in the Greater Boston area. It is a wealthy suburb and home to Wellesley College, Babson College and Mass Bay Community College. Wellesley includes the villages of Babson Park and Wellesley Hills.