Trail RunningUTMB Index RacesUTMB World Series

Kodiak Ultra Marathons by UTMB

Trail Running covering 10.5 km to 162 km with up to 4,850 m D+ in Big Bear Lake (California, United States)

LocationBig Bear Lake, California, United StatesShow on map(34.2439° N, 116.9114° W)
Date & StatusOctober 8, 2027 to October 9, 2027Date confirmed
Elevation gainUp to +4,850 m

Kodiak Ultra Marathons by UTMB is an endurance sporting event in Big Bear Lake, California, US focused on Trail Running. It is part of UTMB Index Races, UTMB World Series. Key features include Nature & Off-Road, Forest, Mountain, Lakes & Ponds.

The race program comprises 5 competitions, including Kodiak 100 Mile (162 km, +4,850 m D+), Kodiak 100K (99 km, +3,120 m D+), 50K (48.4 km, +1,339 m D+), Kodiak Half Marathon (19.5 km, +575 m D+), and 10K (10.5 km, +280 m D+). The next edition is officially confirmed from October 8, 2027 to October 9, 2027. Official race regulations, course details, and registration information are provided on the organizer's website (kodiak.utmb.world).

Official website
Kodiak Ultra Marathons by UTMB in Big Bear Lake (Work: "Alpine Ridge Trail Top Rocky Mountain NP 2024", Photo: Larry D. Moore, License: CC BY 4.0, Source: Wikimedia Commons)
"Alpine Ridge Trail Top Rocky Mountain NP 2024" · Photo: Larry D. Moore · Wikimedia CommonsCC BY 4.0
Cropped to 16:9 (960 × 540 px), WebP

Event characteristics

Nature & Off-RoadForestMountainLakes & PondsHigh AltitudeMulti-Day

Races & distances (5)

CompetitionDisciplineDistanceElevation gainAltitude rangeCourse typeCourse & profile
Kodiak 100 MileTrail Running162 km+4,850 m1,150 m - 3,187 mLoop courseRoute & profile
Kodiak 100KTrail Running99 km+3,120 m1,153 m - 2,463 mLoop courseRoute & profile
50KTrail Running48.4 km+1,339 m1,156 m - 1,718 mLoop courseRoute & profile
Kodiak Half MarathonTrail Running19.5 km+575 m1,159 m - 1,401 mLoop courseRoute & profile
10KTrail Running10.5 km+280 m1,162 m - 1,280 mLoop courseRoute & profile
Course & Elevation Telemetry

Course route & map

Distance
162 km
Elevation gain
+4,850 m D+
Elevation loss
-4,850 m D-
Altitude range
1,150 m - 3,187 m
Gradient (Avg / Max)
6 % / 10.8 %
Course format
Loop course
162 km+4,850 m D+
Start (S)Finish (F)
N255075100125150FS34.2439° N, 116.9114° W

Elevation profile & course telemetry

Altitude from 1,150 m to 3,187 m above sea level (+4,850 m D+, -4,850 m D-)

Peak: 3,187 m·at 79.6 km·Ø 6 %
1,150 m1,829 m2,508 m3,187 m0 km32.4 km64.8 km97.2 km129.6 km162 km3,187 m
Event Information & Answers

Frequently asked questions (FAQ)

When and where does Kodiak Ultra Marathons by UTMB take place?

Kodiak Ultra Marathons by UTMB takes place in Big Bear Lake, California, US (start area at coordinates 34.2439° N, 116.9114° W). The next edition is officially confirmed from October 8, 2027 to October 9, 2027.

What races and distances are offered at Kodiak Ultra Marathons by UTMB?

The race program comprises 5 competitions, including Kodiak 100 Mile (162 km, +4,850 m D+), Kodiak 100K (99 km, +3,120 m D+), 50K (48.4 km, +1,339 m D+), Kodiak Half Marathon (19.5 km, +575 m D+), and 10K (10.5 km, +280 m D+). The competitions belong to Trail Running.

What is the course layout and elevation profile for Kodiak Ultra Marathons by UTMB?

The main competition (Kodiak 100 Mile over 162 km) is designed as a loop course featuring +4,850 m of elevation gain and -4,850 m of elevation loss, ranging between 1,150 m and 3,187 m above sea level. An interactive course map with route visualization, elevation profile, and GPX export is available in the course section on this page.

Where can I find registration and official race rules for Kodiak Ultra Marathons by UTMB?

Official race regulations, course details, and registration information are provided on the organizer's website (kodiak.utmb.world).