Trail Running · Christchurch

🇳🇿Crater Rim Ultra:
Course Analysis & Race Readiness

A 53 km course with 2061 m of climbing and 2092 m of descent, front-loaded by an 8.1 km, 864 m climb before handing back nearly every meter across seven descents.

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

53.0 km

Distance

+2,060 m

Vertical Gain

−2,090 m

Total Descent

Oct 18, 2026

Next Edition · 88 days out

Check YOUR readiness

Connect Strava · No card · 2 min

The Course · GPS-Measured

What 53.1 km / 33.0 mi and 2,060 m / 6,740 ft of vertical gain actually look like

Measured from the GPS track: 53.1 km / 33.0 mi and 2,060 m / 6,740 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

53.0km

Distance

+2,410m

Gain

+0.0 km−350 m

GPS-Measured

53.1km

Distance

+2,060m

Gain

Climb & Gradient

+2,060 mTotal Gain

−2,090 mTotal Loss

Gradient Distribution

28%

Flat

≤3% grade

28%

Run-Climb

3–15% up

Steep Climb

>15% up

38%

Descent

downhill

Steepest Sustained Sections

ClimbCRUX

KM 0.3–8.4 · +864 m

+10.7%

Descent

KM 11.4–18.3 · −623 m

-9%

Climb

KM 20.1–24.3 · +320 m

+7.5%

Descent

KM 8.4–10.9 · −174 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.

5h 17m

Winning time

5h 55m

Top 5

6h 24m

Top 10

7h 53m

Median finisher

9h 45m

Back of pack

Based on 2025 results.

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 45% 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 53 km and roughly 4100 m of combined vertical.

ClimbingVertical power

21%

Six climbs totaling 2061 m, headlined by one 864 m ascent over 8.1 km.

DescendingEccentric / braking

45%

2092 m of loss across seven descents, 47% of the course pointing downhill.

DurabilityLate-race resilience

33%

Repeated hard descents and climbs stress the legs over the full LONG-duration distance.

The Profile in One Line

Descent-dominated 53 km with a big early climb and relentless downhill grades demanding controlled, sustained braking.

Aerobic FoundationalClimbing 21%Descending 45%Durability 33%

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

At 53 km with over 4000 m of combined elevation change, the course demands steady aerobic output for hours without decisive flat recovery, with only 13% of terrain flat.

Climbing

Six climbs and 2061 m of gain, dominated by the opening 8.1 km, 864 m ascent at 10.7%, plus 12.2 km of very steep climbing that force strong uphill power.

Descending

With 2092 m of loss over seven descents and 47% of terrain downhill, including 13.8 km very steep and a 6.9 km, 623 m plunge, eccentric leg strength is decisive.

Durability

Front-loading the biggest climb then pounding through repeated steep descents late leaves legs to absorb heavy braking with fatigue accumulating over the LONG distance.

KM 0.3–8.4

The Opening 864 m Climb

The course launches straight into an 8.1 km climb gaining 864 m at 10.7%, its single major ascent, demanding disciplined pacing before any of the descending begins.

KM 11.4–18.3

The 623 m Drop

After cresting the high point, a 6.9 km descent sheds 623 m at -9%, the longest sustained downhill and the first major test of braking control on tired quads.

Full course

Descent Accumulation

With seven descents totaling 2092 m and nearly 14 km of very steep downhill, the cumulative eccentric load defines the back half of the race.

That was a sample