EcoTrail Oslo - Trail 80 km

EcoTrail Oslo 80 Finish Time Predictor

EcoTrail Oslo 80 race stats pre-loaded (80.2 km, 1,991 m D+). Enter a known race result to get an elevation-adjusted finish time estimate.

80.2km1,991m D+Winner: ~6h39Cutoff: 13h30

Full EcoTrail Oslo - Trail 80 km course data: aid stations, cutoffs, course profile

1. Your race

EcoTrail Oslo 80

80.2 km · 1991 m D+ · 1994 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

100.1 km-effort (ITRA, gain only)110.1 km-effort

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

EcoTrail Oslo 80 finish times by UTMB Index

Predicted finish on the EcoTrail Oslo 80 course (80.2 km, 1,991 m D+) for each UTMB Index, with the margin to the 13h30 cutoff.

EcoTrail Oslo 80: predicted finish time by UTMB Index
UTMB Index	Predicted finish	Average pace	Margin to cutoff
850	5h55	4:25 /km	+7h35
800	6h28	4:50 /km	+7h02
750	7h04	5:17 /km	+6h26
700competitive	7h43	5:47 /km	+5h47
650	8h26	6:19 /km	+5h04
600	9h14	6:54 /km	+4h16
550	10h05	7:33 /km	+3h25
500mid-pack	11h01	8:15 /km	+2h29
450	12h03	9:01 /km	+1h27
400back of the pack	13h10	9:51 /km	+0h20
350	14h24	10:46 /km	0h54 past the cutoff
300	15h44	11:47 /km	2h14 past the cutoff

The 13h30 cutoff sits at about Index 386. The typical winning time, 6h39, sits at about Index 784. At the 2026 edition, the median of the 297 finishers took 10h23, about Index 534. A model estimate, not an official ITRA or UTMB figure.

From a result you already have

What the predictor gives on EcoTrail Oslo 80 for a few common reference results.

EcoTrail Oslo 80: predicted finish from reference results
Road marathon	3h00 → 9h42	3h30 → 11h20	4h00 → 12h57	4h30 → 14h34
50 km trail, 2,000 m D+	5h30 → 8h08	6h30 → 9h37	7h30 → 11h05	8h30 → 12h33

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

To prepare each checkpoint, use the EcoTrail Oslo 80 aid station planner.

EcoTrail Oslo 80 course in numbers

Climbing per km: 25 m
ITRA km-effort: 100 (100K)
Highest point: 499 m
Biggest climb: +290 m over 2.9 km at 9.9% (from Maridalen kirke)
Longest descent: -194 m over 6.7 km at 2.2% (through Fossum)
Track climbing above 3%: 27%
Winning time / cutoff: 6h39 / 13h30 (2x the winner's time)

Section-by-section climbs, descents and grades are on the EcoTrail Oslo 80 course page.

Predict your EcoTrail Oslo 80 finish time from a reference race result, adjusted for the course's 80.2 km and roughly 1,991 m of elevation gain. The overall cutoff is 13h30.

About EcoTrail Oslo - Trail 80 km

EcoTrail Oslo - Trail 80 km covers 80.2 km with around 1,991 m of elevation gain, starting in Nedre Foss Park, Oslo, Norway. The overall cutoff is 13 hours 30 minutes.

Crew access is allowed at Maridalen kirke (13.1 km), Holmenkollen (31.9 km), Sørkedalen (49.3 km), Fossum (59.5 km) and Thaugland (71.5 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 80 by the calibrated model behind the ITRA / UTMB Index Estimator. Full methodology.

Build a training plan targeted at your EcoTrail Oslo 80 goal time

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

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