When does the Underground Railroad 5k sell out?

Underground Railroad 5k 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

Underground Railroad 5k

Q: How hard is the Underground Railroad 5k 5K?

Underground Railroad 5k is a 5K on a road course in Princeton, Illinois. 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 Underground Railroad 5k?

Race-day weather in Princeton 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 8:30 AM. Check the race-day weather forecast on this page closer to the date for a specific recommendation.

September 12, 2026

Princeton, Illinois

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

Family-friendly

About the Race

33rd Annual Underground Railroad 5k Saturday, September 12, 2026 Race Day Schedule: 7:00am Registration and Packet Pick-up 8:00am Kiddie Fun Run Starts 8:30am 5k Race Starts CERTIFIED COURSE IL25042NM: Begins and ends at the Bureau County Metro Center ENTRY FEE $25 8/6 & Before $30 8/7 & After $300 Corporate Team (up to 20 participants) Kiddy Fun Run FREE!!! T-shirts Guaranteed to all pre-registered participants. Available to Day-of registrants, while supplies last! Starved Rock Runners Club ...

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

Stroller-friendly

Dog-friendly

Kids race

Yes

Vibe & community

We don't have vibe tags for this race yet — organizers can claim the listing to add them.

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

No reviews yet

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Common questions

How hard is the Underground Railroad 5k 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.