When does the Smile Like Jack 5k/10k/Fun Run sell out?

Smile Like Jack 5k/10k/Fun Run hasn't published a hard registration deadline. Most races of this size raise the entry fee in tiers (early-bird, regular, late) and can sell out without warning — sign up early if you're committed.

Road

Smile Like Jack 5k/10k/Fun Run

Q: How hard is the Smile Like Jack 5k/10k/Fun Run 5K?

Smile Like Jack 5k/10k/Fun Run is a 5K on a road course in East Otis, Massachusetts. We don't have a verified elevation profile yet — check the organizer's course map for the climb breakdown.

Q: What should I wear for the Smile Like Jack 5k/10k/Fun Run?

Race-day weather in East Otis can swing year over year, so dress for the forecast on the day. As a rule of thumb, dress for ~10°F warmer than the standing temperature once you start running. Layer with a throwaway long-sleeve at the start, gloves and a hat for sub-50°F mornings, and a singlet plus a visor when it climbs above 60°F. The published start time is 9:00 AM. Check the race-day weather forecast on this page closer to the date for a specific recommendation.

July 11, 2026

East Otis, Massachusetts

Rolling Course

Decision scores

Six 0–100 scores telling you, at a glance, who this race is for.

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Best for

Great for beginners

PR-friendly

Walker-friendly

Family-friendly

About the Race

Join us Saturday, 7/11/2026 for our Fifth Annual Smile Like Jack Family Fun Run/Walk. We will have food, beverages (21+ options too), amazing raffles, music, and lots of smiling faces! Early check-in will be held Friday 7/10/2026, from 4-7 PM at the Knox Trail Inn, for those who wish to get their bibs the evening before. Day of registration and check-in begins promptly at 7:00 AM, while the race kickoff is at 9 AM. Prices: Competitive Race (Chipped Timed) 5k/10k $40 Family Fun Run/Walk (N...

Course Profile

Course profile data unavailable for this race.

Course features

Terrain

road

Surface

Road

Elevation gain

Not measured

Course type

Not stated

Field size

Unknown

Boston qualifier

Course map

Not yet published

Elevation profile

Not measured

Accessibility & inclusion

Walker-friendly

Yes

Stroller-friendly

Dog-friendly

Kids race

Yes

Vibe & community

music

No charity partner listed.

History & past results

Years running

Unknown — claim to add

Recurrence

Annual (assumed)

Past finisher times and year-over-year participation will appear here once the organizer publishes them.

Reviews

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Common questions

How hard is the Smile Like Jack 5k/10k/Fun Run 5K?

We don't have a verified elevation profile yet — check the organizer's course map for the climb breakdown.

What should I wear?

Dress for ~10°F warmer than the standing temperature once you start running. Throwaway long-sleeve at the start, gloves and a hat for sub-50°F mornings, singlet plus visor when it climbs above 60°F. The race-day forecast above is the source of truth closer to the date.