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ultrasignup.com

Iron X

location_on

calendar_today 11 Jul, 2026

directions_run Running

About the Event

Iron X returns to Auburn, California on July 11th, inviting runners from across the country to experience a unique blend of endurance racing and the peculiar sport of extreme ironing. This half-marathon event weaves through iconic locations in Auburn where participants must pause at designated spots along their route to engage in an unexpected activity: ironing their shirts.
The race begins on Pacific Avenue and winds its way through the heart of Auburn, a city nestled against rugged terrain with views that change dramatically from dense forest to historic downtown streets. As runners navigate Robie Point and cross No Hands Bridge, they’ll encounter stretches where the trail feels like an extension of the landscape itself—hard-packed earth underfoot and crisp air filling lungs as temperatures hover around 26 degrees Celsius.
Iron X is more than just a race; it’s a testament to creativity and community spirit. Since its inception in recent years, this event has grown from a curious idea into a beloved tradition for runners seeking something out of the ordinary. Participants range widely in experience but share a common thread: an appreciation for pushing boundaries within unconventional frameworks. The cause behind Iron X is simply to celebrate the joy found at the intersection of athleticism and whimsy.
Half Marathon
21.1K  •  Start: 08:00:00

- Half Marathon | 21.1K
The course for Iron X includes several distinctive ironing challenges spread across key landmarks in Auburn, such as Robie Point’s old foundation site and the banks near No Hands Bridge where runners dip into knee-deep water to complete their task. Each of these spots is marked by a unique challenge that requires not only physical stamina but also ingenuity in managing equipment and personal gear through varying terrains. The route itself covers nearly 21 kilometers, offering both scenic beauty and technical challenges as it traverses diverse landscapes.
Participants must be prepared for the full rigors of carrying an ironing board and supplies throughout their run without any support from outside sources. This self-reliance adds a layer of complexity to what is already a demanding physical challenge. Videos documenting each ironsite visit are required evidence, capturing moments that often feel surreal against the backdrop of bustling city life or quiet natural settings.
In July in Auburn, temperatures typically range between 17 and 35 degrees Celsius with an average humidity around 34 percent. The trail conditions remain hard and dry, ideal for running but challenging when combined with carrying additional gear like ironing boards. Runners should expect mostly sunny skies during the day, though there's always a chance of brief afternoon showers.
To register for Iron X, visit [https://ultrasignup.com/register.aspx?did=137980](https://ultrasignup.com/register.aspx?did=137980). Registration fees vary based on timing but are subject to change as the event approaches. Bib pickup will take place at 855 Pacific Ave, Auburn CA from July 6th through the morning of race day. Participants must bring a valid photo ID and proof of payment.
On race day, all runners should gather at 855 Pacific Avenue for start line instructions. The course is open to athletes aged 18 years or older who are capable of self-support throughout its entirety. For those new to the event, ensure you familiarize yourself with both the terrain profile and weather conditions expected on July 11th.
Iron X in Auburn, California stands as a singular adventure that combines athletic challenge with quirky creativity. Whether it’s your first time or another year participating, this half-marathon promises an unforgettable journey through some of Auburn's most iconic locations under the warm summer sun.

Races Offered

Half Marathon

Jul 11, 2026

straighten

Distance — 21.1K

terrain

Type — Running

timer

08:00

sell

$0.00

Weather History

These values represent the 3-year monthly averages for July in Auburn.

thermostat Temperature
17.6° / 35.3°
wb_sunny Feels like
15.5° / 32.2°
light_mode Avg sunshine hours
13h 55m
water_drop Avg rainfall
ac_unit Avg snowfall
air Avg wind speed
8.5 km/h (Light breeze)
opacity Sweat loss rate
Moderate
terrain Course conditions
Hard and dry surface
sunny Max UV Index
Very High (8.0)
humidity_mid Humidity
33.6%
wb_twilight Sunrise
05:52
nightlight Sunset
20:26

About Auburn

Learn more about the host city, Auburn.

Scenic view of

Auburn is a small city in Placer County on Interstate 80 in California.

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