IRON HEART RUN
LOVE * RUN * REPEAT
Location: 21880 Maramec Spring Dr, St James, MO 65559
Description
Iron Heart Ultra Race
Date: Saturday, February 14, 2025
Location: Massey Hill Shelter, Maramec Spring Park
Address: 21880 Maramec Spring Drive, St. James, MO 65559
Celebrate Valentine’s Day with Heart — the Iron Heart
Spend Valentine’s Day pushing your limits at one of Missouri’s most scenic trail venues. The Iron Heart Ultra Race delivers endurance, challenge, and camaraderie in the heart of the Ozarks. Whether this is your first trail race or your next ultra buckle, there’s a distance made for you.
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Race Distances
Choose the challenge that fits your heart (and your legs):
100 Mile • 100K • 50 Mile • 50K • 20 Mile • 15 Mile • 20K • 10 Mile • 15K • 10K • 5 Mile • 5K
From short trail efforts to full-distance ultras, everyone belongs at Iron Heart.
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Start Times & Cutoffs
• Race Start: 6:00 a.m. — Saturday, February 14
• Cutoff: 32 hours (race ends at 2:00 p.m. Sunday)
• Early Start (100 Mile only): 2:00 a.m. start with a 36-hour cutoff
o Note: Early starters are not eligible for overall male or female awards.
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Packet Pickup & Pre-Race Meal
Thursday, February 13
• Time: 6:00 p.m.
• Location: Massey Hill Shelter
Pasta Dinner Included (RSVP required)
Enjoy a relaxed evening with fellow runners and volunteers before race day.
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Course Details
Runners will experience two beautiful and historic trails within Maramec Spring Park:
• Leatherbritches Trail (1.8 miles):
Winds through pine and oak/hickory forest with views of the historic Maramec Iron Works mine pit.
• BallHooter Trail (3.2 miles):
A moderately challenging loop with ~246 feet of elevation gain, blending runnable terrain with technical sections.
Aid Station:
Located at the BallHooter / Leatherbritches changeover, fully stocked with:
• Water & electrolyte drink
• And our famous hot quesadillas
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Pacers
• 100 Mile: Pacers allowed after mile 50
• 100K: Pacers allowed starting at mile 52 (beginning of final lap)
• Pacers must check in and wear a pacer bib
• No pacers (including cyclists) allowed for any other distance — no exceptions
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Awards & Finisher Swag
• Overall Male & Female Awards for all distances
• Custom Iron Heart Belt Buckles for:
o 100 Mile
o 100K
o 50 Mile
o 50K
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Event Logistics
• Camping: Allowed in the parking lot and grassy areas around the shelter (no hookups)
• Spectators: Welcome at the main aid station to cheer runners on
• Pets: Well-behaved pets are always welcome
• Dropouts: Please notify a race official immediately if you must withdraw
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Whether you’re chasing your first buckle, testing your limits, or running simply for the love of the trail, Iron Heart Ultra is the perfect way to spend Valentine’s Day—surrounded by challenge, beauty, and heart.
Every Second Counts.
more info: https://ironheart.itsyourrace.com/ Questions: info@split-secondtiming.com
We will be located in the Massey Hill Shelter, with plenty of parking, shelter, tables, fire pit, and a hard stand bathroom! Plenty of space to set up your tents and enjoy.
Parking Lot for Massey Shelter
Leather Britches Overlook
Ballhooter Trail
Trail Markers
Trail from eye view.
