100M

• Basecamp (Expo) Location: The Village of Big Bear Lake
• Start Location: Rim Nordic Ski Area
  • Drive time from Shuttle Pickup to Start: 30 minutes
• Finish Location: The Village of Big Bear Lake
• Date: Friday, October 10, 2025
• Start Time: 1pm PT
• Elevation: 15,900ft / 4859m
• Shuttles: Provided, but not required. Runners will be prioritized. Shuttle pick-up at Sandalwood Lot.
• Parking: Runners may be dropped off at and spectators may park at Snow Valley Ski Resort (across the street from the Rim Nordic Ski Area). Runners may not leave their car at this parking lot (lot closes at 4pm).
  • Use extreme caution when crossing the Highway from Snow Valley to the Start at Rim Nordic.
• Some crew accessible aid station locations will not have parking. We will provide a mandatory shuttle to the Doble Camp and Sugarloaf Aid Stations. The Doble Camp shuttle pick up is at Snow Summit Ski Resort. The Sugarloaf shuttle pick up is at Bear Mountain Ski Resort.
• All spectators are welcome at the base of Snow Summit, where parking will be available. All race distances pass through this location.

*All course details are subject to change. Always follow course markings.

The 2025 Kodiak Ultra Marathons by UTMB® 100M race circumnavigates the entire Big Bear Valley including a few miles on the Pacific Crest Trail and a visit to the summit of Sugarloaf Mountain (9,995′). This is a true mountain 100 miler with a lot of running above 7,000 feet. From the alpine forest with towering pines to the high desert with Joshua trees, you’ll experience several climates and varying vistas from the mountains to Big Bear Lake.

The GPX file is the most accurate regarding distance and elevation data. There may be minor data differences between this GPX file and the Profile, Map & Time Charts graphics above.

Last updated: 10/06/2025

Revision History

• Added 2025 100 mile GPX File
• Removed the Green Valley Aid Station
• Relocated the Crab Flats Aid Station
• Relocated Smarts Ranch Aid Station
• Updated distance
• Fixed GPX issue

Light Aid Station

Our light aid stations are designed to keep you moving fast with quick, easy-to-grab fuel and hydration options. You’ll find a mix of salty, sweet, and comforting items to keep your energy up and your stomach happy.

Typical Offerings:

• Bananas
• Chicken or vegetable broth
• Ramen noodles
• M&M’s
• OREO cookies
• Pretzels
• Potato chips
• Coca-Cola
• Mountain Dew
• Ginger Ale

These stations do not include cooked meals, but they’re fully stocked with classic ultra favorites to help you refuel, rehydrate, and get back on the trail.

Full Aid Station

Our full aid stations are designed to help you refuel, reset, and recharge for the miles ahead. These stations include a wider selection of hot food, sweet and salty snacks, fruit, and beverages — everything you need to keep moving strong through the day and night.

Typical Offerings:

• Fresh fruit: bananas, oranges, watermelon
• Sweet snacks: M&M’s, Skittles, brownies, OREO cookies
• Salty snacks: potato chips, peanut butter pretzels, pretzels, saltine crackers, dill pickles
• PB&J sandwiches: white bread, peanut butter, strawberry preserves
• Hot foods: pancakes, refried bean and cheese burritos, bacon, quesadillas, ramen, potatoes
• Warm drinks: chicken and vegetable broth, coffee with creamer
• Cold drinks: Coke, Mountain Dew, Ginger Ale

Each full aid station offers hot food options and refrigerated items (when needed), along with the classic snacks and drinks found at light aid stations. These are your go-to spots for a full reset before heading back into the mountains.

The Aid Station Chart is the most accurate regarding distance and elevation data. There may be minor data differences between these Aid Station Charts and the Profile, Map & Time Charts graphics above.

Last updated: 10/06/2025

Revision History

• Added 2025 100 mile Aid Station Chart
• Removed the Green Valley Aid Station
• Relocated the Crab Flats Aid Station
• Relocated Smarts Ranch Aid Station
• Updated distance
• Added cut-offs
• Added elevation gain & loss
• Added Metric Chart
• Added Snow Summit crew access info
• Added AS Type

• Running pack for carrying supplies for the duration of the race
  • Pack can be a backpack, vest or waist/belt pack
• Mobile / Cell phone (smartphone strongly recommended)
  • Mobile / Cell phone with international roaming that works in the United States of America
  • Each runner should save the organization's safety phone numbers
• Personal collapsible cup (15 cl / 5 oz minimum)
• Minimum water supply of 1 liter
• 2 working headlamps (torches) with spare cells/batteries for each headlamp. (Recommendation of 200 lumens or more for main headlamp)
• Food reserve. (Recommendation of 800 kcal: 2 gels + 2 power bars each of 65 g)
• Jacket with hood for bad weather in the mountains. We are expecting rain and strongly recommend a waterproof jacket. The jacket must have an integrated hood or one which attached to the jacket by the original system designed for that purpose by the manufacturer
• Hat (beanie, cap, bandana, or Buff®)
• Emergency Blanket

Should the race management team add onto the mandatory gear due to weather conditions, please reference the cold and hot weather kits outlined below. You will be notified via email if either kit is required during race week. Runners are expected to pack both kits for race weekend in the event one of these kits needs to be implemented.

Hot weather kit (may be required by the organization, depending on weather conditions)

• Sunglasses ***
• Sunscreen, recommendation: minimum sun protection factor (SPF) 50 
• Minimum water supply: 2 liters

Cold weather kit (may be required by the organization, depending on weather conditions)

• Protective eyewear ***
• Additional warm second layer: a warm second layer top with long sleeves OR the combination of long-sleeved warm undergarment and a windproof jacket with durable water-repellent protection (Note: the wind-proof jacket does not replace the mandatory jacket with hood, and vice versa).
• Sturdy, closed-toe trail-running shoes (minimalist or ultralight shoes Not recommended)
• Beanie (or multifunctional neck gaiter, which may be the same as the one mentioned above)
• Warm gloves (waterproof strongly recommended)
• Waterproof overpants

*** it is possible to use the same glasses if they are suitable both for the sun and bad weather (such as glasses with photo-chromatic lenses)