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Iron Heart Ultra

United States flag
St James, Missouri, United States

calendar_today 13 Feb, 2027

directions_run Running

sell $30.00 – $230.00

Register Now
Iron Heart Ultra

About the Event

Iron Heart Ultra Race
Experience Valentine's Day weekend like never before at Maramec Spring Park, nestled among the scenic Ozark hills. This challenging trail race offers something for every endurance runner, from first-timers to seasoned ultramarathon veterans. The event takes place on Saturday, February 13, 2027, and features a variety of distances including the grueling 100-mile option as well as shorter but equally demanding races such as the 50K and 10K.
The race course winds through two picturesque trails within Maramec Spring Park. The Leatherbritches Trail offers approximately 1.5 miles of scenic single-track forest path, providing runners with stunning views of the historic Maramec Iron Works mine pit. In contrast, the BallHooter Trail presents a more rugged challenge over its 3.4-mile loop, featuring significant elevation changes.
Aid stations are strategically placed to support participants throughout their journey. A fully stocked station is available at all times during the event, while runners can also expect one water-only stop along the course. For those pushing themselves beyond the 50-mile mark, pacers are permitted after Mile 50 for the 100-mile and 100K distances.
Upon crossing the finish line, participants will receive custom Iron Heart belt buckles if they complete any of the longer races (100 mile, 100K, 50 mile, or 50K). All finishers in these categories are also eligible for overall male and female awards.
The race venue provides a rustic camping experience with overnight parking available on-site. Spectators and leashed pets are welcome to join the festivities, adding an extra layer of community spirit to this already engaging event.
Registration is now open at Iron Heart Ultra Race, where you can choose your preferred distance and secure your spot in what promises to be a memorable running adventure through Missouri's beautiful outdoors. For further information, visit the official website or contact [email protected].
The Iron Heart Ultra Race celebrates not just athletic achievement but also inclusivity, with adaptive athlete policies ensuring that runners of all abilities can participate safely and enjoyably.

Races Offered

100K

Feb 13, 2027

straighten

Distance — 100K

terrain

Type — Running

timer

07:00

sell

$185.00

100M

Feb 13, 2027

straighten

Distance — 100M

terrain

Type — Running

timer

07:00

sell

$230.00

10K

Feb 13, 2027

straighten

Distance — 10K

terrain

Type — Running

timer

07:00

sell

$50.00

20K

Feb 13, 2027

straighten

Distance — 20K

terrain

Type — Running

timer

07:00

sell

$100.00

50K

Feb 13, 2027

straighten

Distance — 50K

terrain

Type — Running

timer

07:00

sell

$130.00

50M

Feb 13, 2027

straighten

Distance — 50M

terrain

Type — Running

timer

07:00

sell

$140.00

5K

Feb 13, 2027

straighten

Distance — 5K

terrain

Type — Running

timer

07:00

sell

$30.00

Weather History

These values represent the 3-year monthly averages for February in St James.

thermostat Temperature
-0.6° / 10.5°
wb_sunny Feels like
-5.4° / 6.3°
light_mode Avg sunshine hours
7h 52m
water_drop Avg rainfall
1.8 mm
ac_unit Avg snowfall
0.2 cm
air Avg wind speed
12.6 km/h (Gentle breeze)
opacity Sweat loss rate
Low
terrain Course conditions
Firm and slightly soft
sunny Max UV Index
Moderate (3.0)
humidity_mid Humidity
65.8%
wb_twilight Sunrise
07:55
nightlight Sunset
18:43

Hotels & Places to Stay

Race Results

All-time top performances and historical records for Iron Heart Ultra.

Place Name Year Time
🥇 Anthony Miller '26 34:13:49

Runner Reviews

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