Skip to content
kliva
Blood Rock 100
UltraUnited StatesAlabama

Blood Rock 100 2026

04.12 – 06.12.2026Birmingham (United States)
Build your race plan →

Pacing, fueling and crew sheet for the course you pick

Official siteWrong info?

Start line in

 

3 courses · 50–161 km31.1–100 mi · up to 6’000 m D+up to 19’685 ft D+

At a glance

Blood Rock 100 2026 takes place from Friday 4 to Sunday 6 December 2026 in Birmingham (Alabama, United States). Three distances to choose from: 50, 80 and 161 km.

Longest course: Blood Rock 100, 161 km with 6’000 m D+ (37 m per km: mountain terrain).

On Kliva, plan your pacing and nutrition for free, then send the plan to your watch.

Alabama's premier mountain trail adventure challenging enough to be meaningful, beautiful enough to be unforgettable.
From the organiser

3 courses

  1. 50km31.1mi

    1’900 m D+6’234 ft D+

    1’579 m D-5’180 ft D-

    avg 4%

    Blood Rock 50K

    06.12.

    UTMB Index 50K
    GPX

  2. 80km49.7mi

    3’000 m D+9’843 ft D+

    3’037 m D-9’964 ft D-

    avg 4%

    Blood Rock 50 Mile

    06.12.

    UTMB Index 100K
    GPX

  3. 161km100mi

    6’000 m D+19’685 ft D+

    avg 4%

    Blood Rock 100
    UTMB Index 100M

Course analysis

80 km49.7 mi3’000 m D+9’843 ft D+

110effort kmⓘ80 km on the map · feels like 110 km49.7 mi on the map · feels like 110 km
D+
3’000 m9’843 ft
D−
3’037 m9’964 ft
Max alt.
391 m1’283 ft
Steepest
17%

Segments

Skip the map

Elevation profile: Blood Rock 50 Mile

178 m – 391 m584 ft – 1’283 ft

Race plan

Plan your race from start to finish.

Pacing, aid stations and fueling timed to your effort on Blood Rock 100, in one roadbook.

Build your race plan →

Feels like these

Where to stay

Find a place to stay near Birmingham for the race.

We may earn a commission if you book through this map, at no extra cost to you.

Spotted wrong info on this page? Tell us and we'll review it. Report it

← Back to calendar