Iron Will Grand Slam 2027: Embrace the Ultimate Ultra Challenge! The Iron Will Grand Slam invites you to embark on an unforgettable journey through four epic 100-mile races, each offering its own unique terrain and challenges. This series is not just about racing; it's a test of your mental and physical fortitude. Earth Day Buckle Mania (April 23) kicks off the season with a scenic course that celebrates nature’s rebirth in springtime. Runners will traverse varied landscapes, earning multiple buckles along the way as they complete this challenging yet rewarding race. The second leg of the series is Iron Will Backroads on May 29, taking runners through gravel roads and rail trails filled with twists and turns. This course challenges your endurance while showcasing stunning rural scenery. Honey Badger Road Race follows in July, pushing you to your limits during one of the hottest months of the year. Known for its relentless pace and grueling conditions, this race demands resilience and determination from every participant. Finally, Iron Will on September 16 serves as a fitting finale to the Grand Slam series. This last test of grit will leave no room for complacency, ensuring that only those with an unwavering spirit can claim victory. Participants who complete all four races earn exclusive finisher buckles and are eligible for a massive custom plaque measuring 15” x 12”, commemorating their incredible achievement with personalized details. Joining this elite group of runners is a badge of honor, symbolizing your triumph over some of the toughest ultra distances in the world. Registration costs $800 for all four races, offering significant savings compared to entering each race individually. However, due to these discounted prices and the nature of the challenge, there are no refunds or deferrals available once you sign up. Prepare yourself for an unparalleled adventure that will push your limits like never before. The Iron Will Grand Slam awaits those ready to write their names into ultra-running history.
Races Offered
Iron Will Slam
Apr 23, 2027
straighten
Distance —
Iron Will Slam
terrain
Type —
Running
timer
06:00
sell
$800.00
Weather History
These values represent the 3-year monthly averages for April in Enterprise.
thermostatTemperature
8.8° / 21.2°
wb_sunnyFeels like
4.6° / 16.8°
light_mode
Avg sunshine hours
10h 22m
water_drop
Avg rainfall
3.0 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
16.0 km/h (Gentle breeze)
opacity
Sweat loss rate
Moderate
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (5.0)
humidity_mid
Humidity
51.4%
wb_twilight
Sunrise
06:50
nightlight
Sunset
20:05
About Enterprise
Learn more about the host city, Enterprise.
Enterprise is a city in Dickinson County, Kansas, United States. As of the 2020 census, the population of the city was 708.