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Trail Running · Gran Canaria

🇪🇸Transgrancanaria 128 km:
Course Analysis & Race Readiness

125 km with 6,169 m of gain and 6,140 m of loss across 18 climbs and 16 descents. From near sea level to 1,721 m, it demands relentless descending legs and durability over an ultra-length day.

CourseRecon scores your own training against the descending and durability demands that define Transgrancanaria 128 km — the sample analysis below shows exactly how.

125 km
Distance
+6,090 m
Vertical Gain
−6,070 m
Total Descent
Feb 26, 2027
Next Edition · 223 days out
Check YOUR readiness
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The Course · GPS-Measured

What 125 km / 77.7 mi and 6,090 m / 19,990 ft of vertical gain actually look like

Measured from the GPS track: 125 km / 77.7 mi and 6,090 m / 19,990 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
125km
Distance
+6,170m
Gain
−0.0 km−80 m
GPS-Measured
125km
Distance
+6,090m
Gain
Climb & Gradient
+6,090 mTotal Gain
−6,070 mTotal Loss
Gradient Distribution
25%
Flat
≤3% grade
23%
Run-Climb
3–15% up
13%
Steep Climb
>15% up
39%
Descent
downhill
Steepest Sustained Sections
1
Descent
KM 45.8–51.8 · −780 m
-13.1%
2
ClimbCRUX
KM 51.8–58.6 · +887 m
+13.1%
3
Descent
KM 37.3–39.8 · −317 m
-13%
4
Climb
KM 43.1–45.8 · +328 m
+12.1%
Finish & Cutoff Times

What it takes to finish

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

12h 17m
Winning time
13h 53m
Top 5
14h 35m
Top 10
22h 15m
Median finisher
30h 00m
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 46% 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 effort across 125 km from near sea level to 1,721 m of high point.
ClimbingVertical power
20%
18 climbs totaling 6,169 m, with a 887 m signature ascent and abundant very-steep grades.
DescendingEccentric / braking
46%
6,140 m of loss over 16 descents, 44% of the course downhill including an 11.3 km drop.
DurabilityLate-race resilience
35%
Repeated climb-descent cycling across 125 km punishes legs long before the finish.
The Profile in One Line

An ultra-distance course where 44% is downhill and 41% of the up runs steeper than 10%.

Aerobic FoundationalClimbing 20%Descending 46%Durability 35%

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
64
The 125 km distance and sustained vertical demand steady aerobic output for many hours, though the terrain rarely allows a settled flat rhythm.
Climbing
98
Eighteen climbs stack 6,169 m of gain, with 15.9% of terrain very steep and a marquee 887 m ascent over 6.75 km at 13.1%. Efficient, repeatable uphill power is essential.
Descending
52
With 6,140 m of loss and 44% of the course pointed downhill, including an 11.3 km descent and grades to -13.1%, sustained braking and quad resilience are decisive.
Durability
69
Sixteen descents and eighteen climbs alternate across 125 km, so the ability to protect the legs early and keep descending late defines the day.
km 51.8–58.6
The 887 m signature climb
The course's biggest ascent gains 887 m over 6.75 km at 13.1%, immediately after a 780 m descent. Climbing legs meet fatigue with no recovery buffer.
km 45.8–51.8
780 m plunge before the big climb
A 780 m descent at -13.1% batters the quads right before the marquee ascent, forcing controlled braking to preserve the legs.
long descent
11.3 km sustained descent
The longest descent runs 11.3 km, testing whether braking capacity and quad durability survive to the later stages of a 6,140 m loss total.
That was a sample

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