MileBuilt Gemini Springs 2-Day Challenge logo

MileBuilt Gemini Springs 2-Day Challenge

MileBuilt Gemini Springs 2-Day Challenge is a running and ultra race on January 23–24, 2027 in DeBary, FL, with entry fees from $35 to $85.

Date
January 23–24, 2027 (144 days to go)
Price
$35–$85
Sports
RunningUltra

From the Organizer

THE RACE

The Gemini Springs 2-Day Challenge runs on Spring-to-Spring Trail/Pat Northey Pathway in DeBary, FL on January 23-24, 2027. An out-and-back on an accessible, measured trail. Palm hammock, live oak, and cypress. A tunnel of trees. 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.

Five distances: 5K · 10K · Half Marathon · Marathon · 50K. Core distances run both days. 50K is confirmed for this event.

START TIMES
7:00 AM — Marathon and 50K
7:10 AM — Half Marathon
8:00 AM — 5K and 10K

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

AID STATION
Cupless event. Carry your own fluids — handheld bottle, vest, or waist pack. MileBuilt provides water, an electrolyte drink, and basic snacks. 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.

BARE-BONES EVENT
No shirts. No race bags. No expo. 

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.

Events

Marathon - Day 1 (Saturday)$70
50K - Day 1 (Saturday)$85
Half Marathon - Day 1 (Saturday)$60
5K - Day 1 (Saturday)$35
10K - Day 1 (Saturday)$45
Marathon - Day 2 (Sunday)$70
50K - Day 2 (Sunday)$85
Half Marathon - Day 2 (Sunday)$60
5K - Day 2 (Sunday)$35
10K - Day 2 (Sunday)$45

Weather

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

70°

Typical Low

49°

Chance of Rain

26%

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

Sunrise 7:17 AMSunset 5:56 PMDaylight 10h 39m

Host City

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

Your Next Start Line

What Are You
Waiting For?

Every finish line starts with a single decision. Claim your spot at MileBuilt Gemini Springs 2-Day Challenge, put it on the calendar, and turn “someday” into a start date.

144

Days to train

Race
MileBuilt Gemini Springs 2-Day Challenge
Date
January 23–24, 2027

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From Endurance Grid

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 MileBuilt Gemini Springs 2-Day Challenge?
MileBuilt Gemini Springs 2-Day Challenge is a running and ultra race held in DeBary, Florida on January 23, 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 MileBuilt Gemini Springs 2-Day Challenge?
Saturday, January 23, 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 MileBuilt Gemini Springs 2-Day Challenge?
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

MileBuilt Gemini Springs 2-Day Challenge

Jan 23, 2027

Register →