Field is limited to 250 racers for each race. Cancelation policy - all race purchases are final and no refunds/transfers will be given for any reason. IRONBULL™ races will take place rain or shine or even snow and only will be canceled if racer safety may be compromised.

12 mile, 80 mile, and 140 mile fees:
Prior to 9/1/19

9/1/19 - 9/30/19

10/1/19 - 10/17/19*

10/18/19 - 10/19/19*

*No guarantee of growler

To encourage family participation, all 12 mile registered participants under age 18 are free! Any racers in the 80 mile (if done by 2 pm) may also do the 12 mile route with friends or family for free.

Racers and volunteers would get free meal and a free beverage (beer only if over 21) and spectators / crew can buy meals in advance for $10 or drinks onsite.  

What’s included:
Race Aid Stations (80 and 140 mile racers)
Swag Bag Goodies (restaurant and hotel discounts)
Finisher Medal
Growler (if over 21) or cow bell (if under 21)*
Drink Ticket
Post-race Meal with live music
Access to YMCA (including showers)
Access to YMCA for your family
Entry Into Raffles
Free Camping (walking distance from start / finish line)

A portion of your entry fee will also be donated to the Marathon County Parks Foundation and CWOOC to build new trails and improve existing trails and facilities.


Awards for the following:

  • Top male and female finishers in 80 and 140 mile rides

  • King of the Hill - first male to top of Rib Mountain (140 mile riders only)

  • Queen of the Hill - first female to top of Rib Mountain

  • Age group winners in 80 and 140 mile races will receive one free entry into any 2020 IRONBULL™ event including IRONBULL™ Xtreme Summer Triathlon, IRONBULL™ Winter Triathlon, IRONBULL™ Ultra Trail, Rib Mountain Adventure Challenge, IRONBULL™ Red Granite Grinder, IRONBULL™ Paddle events.

    • 18-39

    • 40 and over

  • Recognition will be given to participants in the 12 mile race, with all participants under 18 receiving a cowbell.

  • All registered racers and volunteers are eligible for raffle prizes (must be present to win).

  • If you unable to attend the awards ceremony, unclaimed awards will not be mailed.

IRONBULL™, Inc. is a local, not-for-profit organization with goals to support local clubs / organizations and invest in infrastructure for extreme sports in Central Wisconsin.

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