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Trail Running · Catalonia

🇪🇸Ultra Pirineu 100 km:
Course Analysis & Race Readiness

100 km with 8,596 m of climbing and 8,594 m of descent across 14 climbs and 12 descents. Nearly half the course points downhill, demanding relentless descending legs over an ultra-length day.

CourseRecon scores your own training against the descending and durability demands that define Ultra Pirineu 100 km — the sample analysis below shows exactly how.

100 km
Distance
+8,420 m
Vertical Gain
−8,420 m
Total Descent
Oct 3, 2026
Next Edition · 80 days out

Organizer lists +6,800 m of climbing. We measured +8,420 m from the GPS track — +1,620 m more than advertised.

Check YOUR readiness
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The Course · GPS-Measured

What 98.8 km / 61.4 mi and 8,420 m / 27,620 ft of vertical gain actually look like

Measured from the GPS track: 98.8 km / 61.4 mi and 8,420 m / 27,620 ft of vertical gain. This is the terrain you're signing up for: read it before it reads you.

Course Profile

Terrain summary
Claimed vs GPS-Measured
Claimed · Organizer
100km
Distance
+6,800m
Gain
−1.3 km+1,620 m
GPS-Measured
98.8km
Distance
+8,420m
Gain
The organizer's flyer undersells this course by +1,620 m of climbing and +1.3 km.
Climb & Gradient
+8,420 mTotal Gain
−8,420 mTotal Loss
Gradient Distribution
17%
Flat
≤3% grade
24%
Run-Climb
3–15% up
16%
Steep Climb
>15% up
43%
Descent
downhill
Steepest Sustained Sections
1
Climb
KM 47.2–49.3 · +433 m
+21.3%
2
Descent
KM 16.1–18.8 · −487 m
-18%
3
Climb
KM 82.5–87.0 · +664 m
+15%
4
Climb
KM 72.3–74.7 · +347 m
+14.7%
Finish & Cutoff Times

What it takes to finish

Reference finish times from past results — use them to set a realistic goal pace.

10h 40m
Winning time
11h 34m
Top 5
12h 10m
Top 10
18h 00m
Median finisher
26h 30m
Back of pack
What This Race Demands

Four things this course asks of your body

Every course weights the four pillars of mountain-ultra fitness differently. Descending carries 50% of the scoring weight on this course — the terrain makes that the deciding factor.

Weighting shows where readiness is won or lost at this distance — not whether you need each pillar. An aerobic base is a given for a race this long, so it carries little deciding weight even though it's essential — the gaps open on the climbs, descents and the back half.

AerobicSustained engine
Foundational
Sustained aerobic output over 100 km from 784 m up to a 2,516 m high point.
ClimbingVertical power
20%
14 climbs totaling 8,596 m, including a 2,271 m ascent and pitches near 21%.
DescendingEccentric / braking
50%
12 descents shedding 8,594 m, with a 2,309 m drop and 9.4 km descent.
DurabilityLate-race resilience
30%
8,596 m up and 8,594 m down across 100 km punishes legs late in the day.
The Profile in One Line

A 100 km ultra with balanced 8,600 m gain and loss, where steep descending dominates over huge climbing.

Aerobic FoundationalClimbing 20%Descending 50%Durability 30%

Here's how CourseRecon reads a course and an athlete

Sample Readiness Analysis

What a readiness result looks like for this course

This is a worked example for a representative strong mountain-ultra athlete — not your score. Connect your own training and the same analysis runs on you.

Sample
67
OUT OF 100
MOSTLY READY
For a representative strong mountain-ultra athlete

This is a sample — connect your Strava to see your own result.

Pillar Breakdown
Aerobic
72
The 100 km distance with a high point of 2,516 m demands steady aerobic pacing across sustained time on feet at altitude.
Climbing
85
Fourteen climbs and 8,596 m of gain, including a single 2,271 m ascent and grades over 21%, require strong sustained and steep climbing legs.
Descending
59
With 45% of the course pointing downhill and 8,594 m of loss, including a 2,309 m drop over 9.4 km at grades near 18%, descending is decisive.
Durability
69
Repeated 8,600 m of climbing and descending over 100 km grinds down muscular resilience, especially the late steep climbs and long downhills.
km 82–87
Late steep climb
After 82 km, a 664 m climb over 4.4 km at 15% tests climbing strength on tired legs deep in the race.
biggest descent
2,309 m of loss
The largest descent sheds 2,309 m, and with a 9.4 km longest descent, quads face sustained eccentric loading.
km 47–49
Steepest pitch
A 433 m climb over 2 km at 21.3% is the steepest section, demanding power near the middle of the course.
That was a sample

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