EcoTrail Oslo - Trail 50 km

EcoTrail Oslo 50 Finish Time Predictor

EcoTrail Oslo 50 race stats pre-loaded (50.5 km, 1,026 m D+). Enter a known race result to get an elevation-adjusted finish time estimate.

50.5km1,026m D+Winner: ~3h24Cutoff: 9h

Full EcoTrail Oslo - Trail 50 km course data: aid stations, cutoffs, course profile

1. Your race

EcoTrail Oslo 50

50.5 km · 1026 m D+ · 1429 m D-

Different race?

Have the GPX? Measure the exact course in the GPX Explorer

2. How should we estimate you?

From my Strava historyYour last 90 days of real training. Opens the TrailMath app.Read-only access to your activities. Nothing is posted to Strava, and no training plan is created until you ask for one.

Distance (km)

Elevation gain (m)

Elevation loss (m)

Same as gain. Edit if different.

Finish time

Hours, or h:mm

3. Your predicted finish

60.8 km-effort (ITRA, gain only)67.9 km-effort

Add a past race or your index to get a finish time.

EcoTrail Oslo 50 finish times by UTMB Index

Predicted finish on the EcoTrail Oslo 50 course (50.5 km, 1,026 m D+) for each UTMB Index, with the margin to the 9h00 cutoff.

EcoTrail Oslo 50: predicted finish time by UTMB Index
UTMB Index	Predicted finish	Average pace	Margin to cutoff
850	3h09	3:45 /km	+5h51
800	3h27	4:06 /km	+5h33
750	3h46	4:29 /km	+5h14
700competitive	4h07	4:54 /km	+4h53
650	4h30	5:21 /km	+4h30
600	4h55	5:51 /km	+4h05
550	5h23	6:24 /km	+3h37
500mid-pack	5h53	6:59 /km	+3h07
450	6h26	7:38 /km	+2h34
400back of the pack	7h02	8:21 /km	+1h58
350	7h41	9:08 /km	+1h19
300	8h24	9:59 /km	+0h36

The 9h00 cutoff sits at about Index 261. The typical winning time, 3h24, sits at about Index 807. At the 2026 edition, the median of the 498 finishers took 6h14, about Index 468. A model estimate, not an official ITRA or UTMB figure.

From a result you already have

What the predictor gives on EcoTrail Oslo 50 for a few common reference results.

EcoTrail Oslo 50: predicted finish from reference results
Road marathon	3h00 → 5h22	3h30 → 6h16	4h00 → 7h10	4h30 → 8h04
50 km trail, 2,000 m D+	5h30 → 4h20	6h30 → 5h08	7h30 → 5h55	8h30 → 6h42

Road marathons use the tool's rougher power-law fallback.

To prepare each checkpoint, use the EcoTrail Oslo 50 aid station planner.

EcoTrail Oslo 50 course in numbers

Climbing per km: 20 m
ITRA km-effort: 61 (50K)
Highest point: 499 m
Biggest climb: +194 m over 2.8 km at 6.9% (from Sørkedalen)
Steepest climb: +182 m over 2.1 km at 8.5%
Longest descent: -262 m over 4.4 km at 5.9%
Track climbing above 3%: 23%
Winning time / cutoff: 3h24 / 9h00 (2.6x the winner's time)

Section-by-section climbs, descents and grades are on the EcoTrail Oslo 50 course page.

Predict your EcoTrail Oslo 50 finish time from a reference race result, adjusted for the course's 50.5 km and roughly 1,026 m of elevation gain. The overall cutoff is 9h.

About EcoTrail Oslo - Trail 50 km

EcoTrail Oslo - Trail 50 km covers 50.5 km with around 1,026 m of elevation gain, starting in Holmenkollen, Oslo, Norway. The overall cutoff is 9 hours.

Crew access is allowed at Sørkedalen (19.3 km), Fossum (29.6 km) and Thaugland (41.8 km).

Checkpoint data approximate - verify against the current official race guide at ecotrailoslo.com before your race.

How the prediction works

Your result becomes a UTMB Index, mapped onto EcoTrail Oslo 50 by the calibrated model behind the ITRA / UTMB Index Estimator. Full methodology.

Build a training plan targeted at your EcoTrail Oslo 50 goal time

TrailMath uses these models to build periodized plans adjusted to your goals and terrain.

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