Wisconsin ANVIL Ultra Triathlon

SEP-OCT

19-2

2027

Multi day ultra triathlon at Ottawa Lake with solo and relay options from single to deca using measured looped swim, bike and run courses.

19-2 Sep-Oct 2027

Dousman, Wisconsin

Website

Full distance 2.4 112 26.2 mi Solo 1.5x ANVIL 3.6 168 39.3 mi Solo Double ANVIL 4.8 224 52.4 mi Solo Triple ANVIL 7.2 336 78.6 mi Solo Quadripule ANVIL 9.6 448 104.8 mi

Always double-check with the organizer's website! This page may contain affiliate links.

About the race

The Wisconsin ANVIL is a multi-day ultra triathlon event held Sept 19 to Oct 2 at Ottawa Lake in the Kettle Moraine. It offers solo and relay categories spanning from single to deca distances and uses looped swim, bike, and run courses.

The triathlon solo distances include:

Solo Single ANVIL - 2.4 mile swim · 112 mile bike · 26.2 mile run
Solo 1.5x ANVIL - 3.6 mile swim · 168 mile bike · 39.3 mile run
Solo Double ANVIL - 4.8 mile swim · 224 mile bike · 52.4 mile run
Solo Triple ANVIL - 7.2 mile swim · 336 mile bike · 78.6 mile run
Solo Quadripule ANVIL - 9.6 mile swim · 448 mile bike · 104.8 mile run
Solo 1 x 5 ANVIL / Solo Quint ANVIL - 12 mile swim · 560 mile bike · 131 mile run
Solo Deca ANVIL - 24 mile swim · 1120 mile bike · 262 mile run

The swim takes place in an open water, non-motorized lake on a 0.20 mile loop. Athletes must wear the provided swim cap, call out their race number to timers between laps, and can use floating stations for hydration and food. Lifeguards and volunteer kayakers monitor the water. The lake bottom is mostly sandy and the course avoids weedy areas.

The bike uses an open road out and back loop of 5.58 miles per lap on newly paved roads with minimal hills. Roads are open to light vehicle traffic and marked with signage. Riders must use a white headlight and red rear light during overnight hours, wear an ANSI or Snell approved helmet, and follow no drafting and no headphone rules. The course was measured with a Jones Counter; GPS watch data may differ.

The run is a paved 1.00769 mile loop inside the park and campground with three easy crew access points per loop and multiple bathrooms. The course is exposed to weather and requires a headlamp and a flashing red rear light when dark. Crew support is limited to the village area; athletes may stop but the race clock continues. On the final lap friends and family may run with the athlete.

All races are USAT sanctioned; athletes must present a single day USAT pass before racing. Event entries and timing use UltraSignUp, MyLaps hardware, and Race Day Scoring. The organizer is working with IUTA on optional programs that could include additional costs and standards. Visit the organization's website for the most recent information.