Trail Running · Tuscany

🇮🇹Chianti by UTMB 123 km:
Course Analysis & Race Readiness

122 km with 4,891 m of climbing spread across 26 climbs and 20 descents, none longer than 5.7 km. This is a relentless, rolling course where accumulated fatigue and constant descending decide the day.

CourseRecon scores your own training against the durability and descending demands that define Chianti by UTMB 123 km — the sample analysis below shows exactly how.

122 km

Distance

+4,730 m

Vertical Gain

−4,730 m

Total Descent

Mar 19, 2027

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The Course · GPS-Measured

What 122 km / 75.8 mi and 4,730 m / 15,530 ft of vertical gain actually look like

Measured from the GPS track: 122 km / 75.8 mi and 4,730 m / 15,530 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

122km

Distance

+4,890m

Gain

−0.0 km−160 m

GPS-Measured

122km

Distance

+4,730m

Gain

Climb & Gradient

+4,730 mTotal Gain

−4,730 mTotal Loss

Gradient Distribution

28%

Flat

≤3% grade

28%

Run-Climb

3–15% up

Steep Climb

>15% up

37%

Descent

downhill

Steepest Sustained Sections

Climb

KM 66.7–68.9 · +226 m

+9.9%

Climb

KM 62.5–65.1 · +227 m

+8.7%

Climb

KM 100.0–104.0 · +295 m

+8.5%

Climb

KM 19.9–22.6 · +188 m

+7.1%

Finish & Cutoff Times

What it takes to finish

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

9h 59m

Winning time

10h 49m

Top 5

11h 35m

Top 10

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. Durability carries 44% 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 ultra-distance output across 122 km with no true recovery flat, only 12% at ≤3%.

ClimbingVertical power

19%

Twenty-six climbs, many steep: 25% of terrain exceeds 10% up, demanding repeated hard efforts.

DescendingEccentric / braking

36%

Forty percent downhill including a 7.9 km, 474 m descent; constant braking and quad load.

DurabilityLate-race resilience

44%

4,891 m gain and 4,892 m loss over 122 km with no long recoveries between efforts.

The Profile in One Line

A long, choppy 122 km course built from short repeated climbs and 40% downhill, rewarding durability over any single decisive ascent.

Aerobic FoundationalClimbing 19%Descending 36%Durability 44%

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

OUT OF 100

READY

For a representative strong mountain-ultra athlete

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

Pillar Breakdown

Aerobic

With just 12% flat and constant undulation, the course demands steady aerobic output over an ultra distance rather than any single sustained tempo effort.

Climbing

100

Twenty-six climbs stack short, sharp efforts, with 25% of the course above 10% grade and a biggest climb of 391 m over 5.7 km, taxing repeated power on the ups.

Descending

At 40% downhill with a 7.9 km, 474 m descent, the terrain punishes the legs through repeated braking, demanding efficient, controlled downhill running throughout.

Durability

Nearly identical 4,891 m gain and 4,892 m loss across 122 km, delivered in 26 climbs and 20 descents, means fatigue accumulates with no long stretch to reset.

km 100–104

Late 295 m climb

A 295 m ascent at 8.5% over 3.5 km arrives past 100 km, testing climbing power on legs already loaded by nearly 4,000 m of prior descent.

km 62–69

Back-to-back steep climbs

Two consecutive climbs near mid-race, 227 m at 8.7% then 226 m at 9.9%, stack the steepest sustained efforts when durability begins to fray.

Longest descent

7.9 km downhill, 474 m loss

The biggest descent drops 474 m over 7.9 km, demanding controlled braking that spares the quads for the repeated descending still to come.

That was a sample