Wisconsin ANVIL Ultra Triathlon
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Wisconsin ANVIL Ultra Triathlon
The Wisconsin ANVIL Ultra Triathlon is an ultra-endurance event at Ottawa Lake State Park in Dousman, Wisconsin, organized by Mammoth Endurance. The event is staged across a race weekend with separate days for the Triple, Double/Single, and Half formats.
The course uses short, repeatable loops inside and just outside the state park to maximize athlete visibility and on-course support. An on-course Aid Station and Athlete Village provide access to personal crews every loop, real food prepared on site, volunteer support, and a 24-hour on-site medical team.
The organizer provides pre- and post-race resources including nutrition and hydration guidance, training plans, sponsor discounts and giveaways, and community calls. The format emphasizes continuous support, frequent refueling opportunities, and multiple race formats to accommodate different ultra triathlon distances.
Event formats include: Visit the organization's website for the most recent information.
- Triple ANVIL Triathlon (1.5x or more full distance)
- Double ANVIL Triathlon
- 1.5 ANVIL Triathlon
- Solo ANVIL Triathlon
- Solo Aquavelo
- Double Aquavelo
- Solo Duathlon
- Double Duathlon
- Relay options including 2 and 3 person teams
- ANVIL Half Triathlon
