Iron Heart Ultra
Saint James, United States • 6 Feb 2027
Iron Heart Ultra
The Iron Heart Ultra is a trail running event at Maramec Spring Park in St. James, Missouri, scheduled in February 2027. Races are based at the Massey Hill Shelter and use two named park trails with on-course aid and park amenities.
The course uses the Leatherbritches Trail and the BallHooter Trail. Leatherbritches is about 1.8 miles and passes through pine and oak/hickory forest with views of the historic Maramec Iron Works mine pit. BallHooter is about 3.2 miles with roughly 246 feet of elevation gain and a mix of runnable and technical sections. An aid station sits at the BallHooter and Leatherbritches changeover and provides water and an electrolyte drink.
Race distances include:
- 100 Mile
- 100K
- 50 Mile
- 50K
- 20 Mile
- 15 Mile
- 20K
- 10 Mile
- 15K
- 10K
- 5 Mile
- 5K
Packet pickup is available the day before the event and on the morning of the race with a pre-race pasta meal provided by RSVP. Pacers are allowed for the 100 Mile and 100K with check in and a pacer bib; no pacers are permitted for other distances. Awards include overall male and female awards for all distances and custom belt buckles for the 100 Mile, 100K, 50 Mile, and 50K. Camping is permitted in parking and grassy areas with no hookups. Spectators and well behaved pets are allowed; runners who withdraw should notify a race official. Visit the organization's website for the most recent information.