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The Heat 100-Mile Endurance Run of Northern California

The Heat 100-Mile Endurance Run of Northern California, Cool
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Trail in United States, Cool

Distances

  • Running

    100K

    100 km

    Start: Jun 15, 02:00 AM

  • Running

    50-Mile

    80.5 km

    Start: Jun 15, 02:00 AM

  • Running

    25-Mile

    40.2 km

    Start: Jun 15, 02:00 AM

  • Running

    13.5-Mile Loop

    21.7 km

    Start: Jun 15, 02:00 AM

  • Running

    11.5-Mile Loop

    18.5 km

    Start: Jun 15, 02:00 AM

  • Running

    5K

    5 km

    Start: Jun 15, 02:00 AM

About

The Heat 100-Mile Endurance Run of Northern California features a 13.5-mile North loop and an 11.5-mile South loop, with options for 100K, 50-mile, 25-mile, and 5K distances. The course traverses fire roads and single-track through the rugged scenery of Northern California.

Catering & aid stations

Aid stations with food and drink will be provided on course.

Pacers

Pacers will be provided for the 100K, 50-mile, 25-mile, 13.5-mile, and 11.5-mile races. On race day, pacers will run alongside their groups to target times per Startwave listed on the event website. Pacerflaggen will be visible along the course to help runners maintain their target pace.

Results

View official results

Typical weather in Cool

Monthly averages based on historical data (2000–present).

Jan55°37°
↑ 07:22
↓ 17:06
Feb56°38°
↑ 06:57
↓ 17:42
Mar60°41°
↑ 07:16
↓ 19:12
Apr66°45°
↑ 06:28
↓ 19:42
May76°51°
↑ 05:52
↓ 20:11
Jun86°58°
↑ 05:39
↓ 20:32
Jul92°63°
↑ 05:52
↓ 20:30
Aug91°62°
↑ 06:19
↓ 20:00
Sep85°58°
↑ 06:47
↓ 19:13
Oct74°51°
↑ 07:15
↓ 18:26
Nov61°42°
↑ 06:49
↓ 16:51
Dec53°38°
↑ 07:17
↓ 16:44

Weather data by Open-Meteo

Route maps

What's included in entry

  • Race number
  • Chip timing
  • Finisher medal
  • Event T-shirt

FAQ

What is the registration deadline?

Check the online registration form on this page for current deadlines and availability.

Is there a packet pickup?

Packet pickup information will be available on the race website closer to event date.

Are there age restrictions?

Review the registration information page for age and eligibility requirements per distance.

Last updated: Jun 6, 2026, 12:25:03 AM

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The Heat 100-Mile Endurance Run of Northern California

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The race information has been found on the official website of the event or through publicly available sources. Always refer to the official website for the latest race information. Please let us know if any data is wrong or missing by emailing hello@run-atlas.app.

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