DeBary 50K, Marathon, Half, 10K & 5K – MileBuilt Gemini Springs Labor Day 4-Day Challenge logo

DeBary 50K, Marathon, Half, 10K & 5K – MileBuilt Gemini Springs Labor Day 4-Day Challenge

DeBary 50K, Marathon, Half, 10K & 5K – MileBuilt Gemini Springs Labor Day 4-Day Challenge is a running and ultra race on September 3–6, 2027 in DeBary, FL, with entry fees from $35 to $85.

Date
September 3–6, 2027 (319 days to go)
Price
$35–$85
Sports
RunningUltra

From the Organizer

THE COURSE
The Gemini Springs Labor Day 4-Day Challenge runs on the Spring-to-Spring Trail / Pat Northey Pathway in DeBary, FL, on September 3–6, 2027. An out-and-back on an accessible, measured trail. Palm hammock, live oak, and cypress. Every repeat brings you back to the O.K. Corral for aid and to begin another out-and-back. It gets familiar real quick. That is the point.

DISTANCES AND START TIMES
7:00 AM — 50K and Marathon
7:10 AM — Half Marathon
8:00 AM — 10K and 5K
Available distances: 50K · Marathon · Half Marathon · 10K · 5K

WHAT YOU GET. WHAT YOU DON'T.
No shirts. No race bags. No expo. No chip timing. Nothing in a bag at the finish.
A measured course. A clock. A finish that gets recorded. And a reason to come back tomorrow.
Every finisher earns the Daily Finisher Medallion. Run all four days on a Streak and you earn the Tier Patch.

RACE DAY CUTOFF
4:00 PM. This applies to the full race day — not per distance. Runners still on course after the cutoff will be directed off course.

PARKING
To reach the O.K. Corral parking lot, turn left into the main entrance of Gemini Springs Park from Dirksen Drive. Follow the main park road, and when the road splits, stay to the left. This lane guides you directly into the West Parking Lot, which sits adjacent to the dog park and the O.K. Corral pavilion.

CAMPING
Primitive tent camping only — ten sites inside Gemini Springs Park, each with a fire ring, picnic table, and groomed tent pad. No RVs. Reserved directly through Volusia County (386-736-5953), not through race registration, and sites are limited.

AID STATION
This is a cupless event. Carry your own fluids — handheld bottle, vest, or waist pack. MileBuilt provides water, an electrolyte drink, and basic snacks at the O.K. Corral. Do not rely on the aid station as your complete nutrition plan, especially for longer distances or multi-day participation.

BIB PICKUP
Available on race day beginning one hour before your scheduled start time — honor system, no ID required. A friend may pick up on your behalf. No bib transfers.

FINISH
Not chip timed. When you finish: cross the line, strike the GONG, then complete the Clock Out at the MileBuilt Time Clock. Official finish times are recorded at the MileBuilt Time Clock and verified by the Race Director before results are posted. Every runner must complete the Clock Out process to receive an official finish record.

One day is a full race. Four days is a Streak.

Events

Gemini Springs Marathon - Day 1$70
Gemini Springs 50K - Day 1$85
Gemini Springs Half Mar - Day 1$60
Gemini Springs 5K - Day 1$35
Gemini Springs 10K - Day 1$45
Gemini Springs Marathon - Day 2$70
Gemini Springs 50K - Day 2$85
Gemini Springs Half Mar - Day 2$60
Gemini Springs 5K - Day 2$35
Gemini Springs 10K - Day 2$45

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

90°

Typical Low

74°

Chance of Rain

52%

Based on US Climate Normals data from Sanford, 4 mi from the venue.

Sunrise 7:04 AMSunset 7:44 PMDaylight 12h 41m

About DeBary, FL

Population

22,602

as of 2023

City Elevation

67 ft

Nearest Airport

SFB

Orlando Sanford International Airport · 9 mi

Time Zone

Eastern Time

From Endurance Grid

A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.

Race Location

What Are You
Waiting For?

Every finish line starts with a single decision. Claim your spot at DeBary 50K, Marathon, Half, 10K & 5K – MileBuilt Gemini Springs Labor Day 4-Day Challenge, put it on the calendar, and turn “someday” into a start date.

319

Days to train

Race
DeBary 50K, Marathon, Half, 10K & 5K – MileBuilt Gemini Springs Labor Day 4-Day Challenge
Date
September 3–6, 2027

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About These Sports

This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.

Running

From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.

Ultramarathon

An ultramarathon is anything beyond the standard marathon — 50K, 50-mile, 100K, 100-mile, and timed events. Crossing the line is less about speed and more about not quitting.

Frequently Asked Questions

What is the DeBary 50K, Marathon, Half, 10K & 5K – MileBuilt Gemini Springs Labor Day 4-Day Challenge?
DeBary 50K, Marathon, Half, 10K & 5K – MileBuilt Gemini Springs Labor Day 4-Day Challenge is a running and ultra race held in DeBary, Florida on September 3, 2027. 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 DeBary 50K, Marathon, Half, 10K & 5K – MileBuilt Gemini Springs Labor Day 4-Day Challenge?
Friday, September 3, 2027 in DeBary, Florida at 37 Dirksen Drive. Check the event page for exact start times and wave schedules.
How do I register for the DeBary 50K, Marathon, Half, 10K & 5K – MileBuilt Gemini Springs Labor Day 4-Day Challenge?
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

DeBary 50K, Marathon, Half, 10K & 5K – MileBuilt Gemini Springs Labor Day 4-Day Challenge

Sep 3, 2027

Register