Huron 100 - MI

The Huron 100 Endurance Run and Waterloo‑Pinckney 50 Miler will take place on Saturday, June 6, 2026, starting from Portage Lake (boat launch parking lot) at Waterloo State Recreation Area (11500 Seymour Rd, Grass Lake, MI). The 50 mile race starts at 7:00 AM; the 100 mile race starts at 9:00 AM. The 100 mile course is a point‑to‑point adventure through 6 state recreation areas, 2 metroparks, and 1 county park, with 80% trail, approximately 8,000 feet of elevation gain, 15 aid stations (8 crew‑accessible), and a 32 hour cut‑off. The 50 mile course is 83% trail, approximately 4,300 feet of elevation gain, 8 aid stations (3 crew‑accessible), and a 15 hour cut‑off.

All participants must follow event rules as provided by the organizer. Shuttle pick‑up is offered at both finish locations: Proud Lake at 7:15 AM, Country Elementary School at 5:45 AM. Packet pickup is on Friday, June 5 (location and time TBD). Course maps are available on Hellodrifter. Pacers are allowed; see website for pacer rules and drop bag locations.

• Every 100 mile finisher within 32 hours receives a belt buckle. Every 50 mile finisher within 15 hours receives a medal. Awards for top male and female finishers in each race.
• Proceeds support protection of the Huron River Watershed. The event strives to be cupless and zero waste.
• Volunteers receive a shirt and a discount for next year's event. The aid station voted best by runners wins a free entry into next year's race. Returning volunteers receive a 15% discount; aid station captains receive a 25% discount.
• Refund/transfer policy: refunds or transfers to 2027 available based on date (50% refund or 100% transfer to 2027 before March 1, 2026; 25% refund or 100% transfer to 2027 from March 1–May 15, 2026; no refund but 100% transfer to 2027 from May 16–June 1, 2026). No refunds after May 15, 2026. No transfers after June 1, 2026. No runner‑to‑runner transfers. Ultrasignup fees are non‑refundable.
• Registration closes Monday, June 1, 2026 at 11:59 PM ET.

The 100 mile race finishes at Proud Lake Recreation Area; the 50 mile race finishes at Country Lake Elementary School. The 9:00 AM start for the 100 mile allows for plenty of sleep and prep time before the morning shuttle. The 50 mile start time was adjusted to 7:00 AM to allow runners to finish before sunset.

• Contact: Race Director via UltraSignup.
• Results from 2024 and 2025 are available.
• Pacers are listed as a separate registration category.

The Huron 100 and Waterloo‑Pinckney 50 in Grass Lake, MI on June 6, 2026, offers a 100 mile (32 hours, 8,000 ft gain) and 50 mile (15 hours, 4,300 ft gain) point‑to‑point trail race through the Huron River Watershed, with belt buckles/medals, crew‑accessible aid stations, shuttles, and proceeds supporting watershed protection.