Kodiak by UTMB - 100 Mile - Elevation Profile, Aid Stations and Cutoffs
- Big Bear Lake, California, USA
- 162 km
- 4,850 m D+
- 14 aid stations
Map, checkpoints and cutoffs Map · checkpoints · forecast opens Sep 29 Race-day forecast is live
Race-day conditions
Weather, daylight and your arrival time at all 16 checkpoints, set to the 13:00 start.
- Start
- 13:00
- Daylight at the start
- 06:47-18:23
- Aid stations
- 14
Course profile
Big Bear Lake, California, USA
- Distance
- 162 km Finishes 515 m lower than it starts
- Elevation
- +4,850 m -5,365 m About 30 m of climb per km
- Highest point
- 3,047 m Sugarloaf Mountain
Next edition Est. Fri 8 Oct 2027
Estimated from the 2026 edition (Fri 9 Oct 2026). Not yet announced by the organiser.
- Start
- Sunset 5h23 after the start
- Winner ~16h42 16h42 after the start
- Sunrise 17h47 after the start
- Mid-pack finish UTMB Index 500 26h16 after the start
- Cutoff 36h after the start
A mid-pack runner spends about 12h24 in the dark.
Kodiak by UTMB - 100 Mile is a 162 km (about 101 miles) ultra-trail with around 4,850 m of elevation gain, starting in Big Bear Lake, California, USA. The overall cutoff is 36 hours. The highest point on the course is Sugarloaf Mountain at 3,047 m. That is 30 m of climbing per kilometre.
The biggest climb between checkpoints gains around 900 m from Sugarloaf 1 (km 105.1) to Balky Horse (km 119.5). The steepest sustained section on the elevation profile averages about 13% over roughly 2.9 km around km 110. Crew access is allowed at Doble Camp 1 (48.8 km), Cactus Flats (77.1 km), Doble Camp 2 (83.5 km), Sugarloaf 1 (105.1 km), Sugarloaf 2 (128.2 km), Bear Mountain (137.9 km) and Snow Summit (146.4 km). Drop bags are available at Camp Whittle, Doble Camp 1, Doble Camp 2, Sugarloaf 1 and Sugarloaf 2.
Data is approximate and courses change between editions - always verify against the official race guide.
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Course math
Four numbers worked out from this course's distance, elevation and checkpoints.
TrailMath effort-km
237 effort-km
About 26 h for a mid-pack finisher (index 500). Not a pacing guarantee.
Distance + gain ÷ 100 + loss ÷ 200, beside ITRA's gain-only km-effort. Model TM1.0.
How TrailMath works →UTMB Index category
100M
210 km-effort (distance + gain ÷ 100). Calculated from the course figures, not an official classification.
Estimate your UTMB Index →Biggest climb section
+900 m
Sugarloaf 1 → Balky Horse · km 105.1–119.5
The largest gain between two checkpoints, not one continuous climb.
Sugarloaf 1 cutoff: Sat 12:30
Plan against barriers →Biggest descent section
−685 m
Snow Summit → Big Bear Lake Village (Finish) · km 146.4–162
The largest loss between two checkpoints. ITRA's km-effort ignores descent; TrailMath counts it: 237 km-effort.
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~16 weeks · peak ~8 h/week · 5 run + 2 strength days
For a 162 km race, aim for about 12 h/week at peak. Set your availability to 14 h/week in the app for the headroom to build there gradually.
Next edition not dated yet - plan based on a typical 16-week build. Typical structure for your volume - your live plan adjusts sessions inside each week.
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Aid stations and checkpoints
| Checkpoint | Km | Cumulative gain (m) | Cumulative loss (m) | Cutoff |
|---|---|---|---|---|
| Start - Rim Nordic Services not published | 0 | 0 | 0 | - |
| Crab Flats | 13.5 | 390 | 650 | - |
| Camp Whittle Drop bag | 30.6 | 1,100 | 1,090 | Fri 19:00 |
| Holcomb Valley | 39.9 | 1,330 | 1,290 | - |
| Doble Camp 1 Crew Drop bag | 48.8 | 1,430 | 1,500 | Fri 22:30 |
| Burns Canyon 1 | 58.4 | 1,670 | 1,800 | - |
| Smarts Ranch | 70.8 | 1,830 | 2,270 | - |
| Cactus Flats Crew | 77.1 | 1,920 | 2,330 | Sat 04:30 |
| Doble Camp 2 Crew Drop bag | 83.5 | 2,270 | 2,410 | Sat 06:30 |
| Burns Canyon 2 | 93.2 | 2,530 | 2,740 | - |
| Sugarloaf 1 Crew Drop bag | 105.1 | 2,900 | 3,110 | Sat 12:30 |
| Balky Horse | 119.5 | 3,800 | 3,470 | - |
| Sugarloaf 2 Crew Drop bag | 128.2 | 3,840 | 4,020 | Sat 18:00 |
| Bear Mountain Crew | 137.9 | 4,030 | 4,340 | Sat 20:00 |
| Snow Summit Crew | 146.4 | 4,280 | 4,680 | Sat 22:00 |
| Big Bear Lake Village (Finish) Crew Drop bag | 162 | 4,850 | 5,365 | Sun 01:00 |
Data is approximate and courses change between editions - always verify against the official race guide. Source: official race guide, verified July 17, 2026 - Official race website
FAQ
How much elevation gain does Kodiak by UTMB - 100 Mile have?
Kodiak by UTMB - 100 Mile has around 4,850 m of cumulative elevation gain and 5,365 m of loss over 162 km.
What is the cutoff time for Kodiak by UTMB - 100 Mile?
The overall Kodiak by UTMB - 100 Mile cutoff is 36 hours, with intermediate time barriers at major checkpoints. Winning times are typically around 17 hours.
How long is Kodiak by UTMB - 100 Mile?
Kodiak by UTMB - 100 Mile covers approximately 162 km (about 101 miles), starting in Big Bear Lake, California, USA.
What is the highest point of Kodiak by UTMB - 100 Mile?
The highest point of Kodiak by UTMB - 100 Mile is Sugarloaf Mountain at 3,047 m.
How many aid stations does Kodiak by UTMB - 100 Mile have and which allow crew?
The checkpoint table lists 14 major aid points between the start and the finish. Crew access is allowed at Doble Camp 1 (48.8 km), Cactus Flats (77.1 km), Doble Camp 2 (83.5 km), Sugarloaf 1 (105.1 km), Sugarloaf 2 (128.2 km), Bear Mountain (137.9 km) and Snow Summit (146.4 km). Drop bags are available at Camp Whittle, Doble Camp 1, Doble Camp 2, Sugarloaf 1 and Sugarloaf 2.
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