Ironbull

Ironbull Adventure meets community spirit in Central Wisconsin! Premier racing events, healthy lifestyles, and community support.

Building a stronger, healthier Central Wisconsin together.

06/05/2026

Gritty miles
Happy smiles

IRONBULL events are what they are thanks to you!

We've got a ultra, mtb and trail races, a gravel grinder, and a winter adventure challenge waiting for you.

See you out there.

06/03/2026

Happy Global Running Day!

Get your motivation on with a registration to this fall’s Steepest Test in the Midwest. 9.12.2026

10.5 • 21 • 31.5 mi options - Register NOW! 🥳

06/02/2026

A place where friendly faces and fuzzy noses come together.

Some of the best meetings happen off the agenda.

Get your fill - join us October for the Red Granite Grinder. Pop up gravel rides with our partners to come ☺️

🍬 REGISTRATION OPENS WEDNESDAY 🍬Rib Mountain is offers a Steep Test in the Midwest.But it's also about epic trails, grea...
05/31/2026

🍬 REGISTRATION OPENS WEDNESDAY 🍬

Rib Mountain is offers a Steep Test in the Midwest.

But it's also about epic trails, great people, unforgettable views, and aid stations stocked with enough candy to keep you climbing.

Join us September 12, 2026, for one of Wisconsin's most iconic trail races.

🏔 10.5 Mile
🏔 21 Mile
🏔 31.5 Mile

One mountain. Three distances. Thousands of feet of climbing.

Whether you're chasing a PR, your first trail race, or love candy as fuel, Rib Mountain is waiting.

Tag your trail crew and tell us: Which distance are you taking on this year?

📷Ann + Lee Photography

05/29/2026

Your gravel is ready.

The crops are growing.

Summer miles start now.

Ride them now and join us this fall at the Red Granite Grinder in beautiful Athens, WI.

Register here: www.redgranitegrinder.com

20-150 mile options!

Every great community asset has people behind it who quietly put in the work year after year. In Athens, Wisconsin, Stev...
05/28/2026

Every great community asset has people behind it who quietly put in the work year after year. In Athens, Wisconsin, Steven Brewster has been at the heart of that effort for the trails.

The Red Granite Grinder rolls through some incredibly special trails shaped by countless hours of building, maintaining, and improving. Long before race day and riders arrive, the work is happening behind the scenes to make these experiences possible.

Small towns like Athens are so special because of the people willing to pour themselves into creating something bigger than themselves. Because of Steve’s vision and dedication, these trails have become a place for the community to ride, explore, and gather, while also showcasing the beauty of Central Wisconsin to visitors through events like the Red Granite Grinder.

Thank you, Steve for everything you’ve done for the trail system + the outdoor community in Athens and beyond. The RGG is proud to be part of it and grateful for the work that makes that possible.

We give the biggest heartfelt THANK YOU to every single volunteer, adventurer, racer, vendor, family member, supporter, ...
05/25/2026

We give the biggest heartfelt THANK YOU to every single volunteer, adventurer, racer, vendor, family member, supporter, and our incredible race directors Tim & Anna. We hope you had as much fun and found as much joy as we did!

Here’s the 3 hour Adventure Race pre start group photo 🥹🥳

📷: Ann + Lee Photography

05/24/2026

The 18-hour Rib Mountain Adventure Challenge started on the famous Waupaca Chain ‘O Lakes at Adventure Outfitters, LLC. Racers paddled in 17 different named lakes, starting Friday night between 11:30pm and midnight then proceeded on bike to ride singletrack and then trek in Hartman Creek State Park. The race then took them to the Iola Winter Sports Club for a rugged and remote trekking section followed by a bike back to HQ at Standing Rocks Park for more singletrack and trekking. Here’s a replay of the first two sections from our trackers provided by Adventure Enablers. Full tracking replay here:
https://live.enabledtracking.com/rmac2026/

Rib Mountain Adventure Challenge bus loading last night for 18 hour and this morning for the 8 hour!Follow our stories f...
05/23/2026

Rib Mountain Adventure Challenge bus loading last night for 18 hour and this morning for the 8 hour!

Follow our stories for updates!

05/22/2026

BIG NEWS 💥The Red Granite Grinder now has a NEW 20-mile route: the Pebble Puncher!

This is a huge step for us as we continue working to make the event more accessible and welcoming to more riders of all experience levels. Whether you’re newer to gravel, looking for a fun challenge, or just want to be part of an awesome day on the bike, the Pebble Puncher is for YOU.

AND the best part? Registration is only $25 and includes access to all the event festivities! 🙌

Come ride, hang out, and experience everything that makes Red Granite Grinder special. Grab your spot and join us on the gravel! 🚴

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Wausau, WI

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