Făgăraș Rocks! - #TheWildTruth ultra skyrace

#TheWildTruth 127K Finish Time Predictor

#TheWildTruth 127K race stats pre-loaded (127 km, 10,900 m D+). Enter a known race result to get an elevation-adjusted finish time estimate.

127km10,900m D+Winner: ~33h42Cutoff: 48h

Full Făgăraș Rocks! - #TheWildTruth ultra skyrace course data: aid stations, cutoffs, course profile

1. Your race

#TheWildTruth 127K

127 km · 10900 m D+ · 10900 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

236.0 km-effort (ITRA, gain only)290.5 km-effort

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

#TheWildTruth 127K finish times by UTMB Index

Predicted finish on the #TheWildTruth 127K course (127.0 km, 10,900 m D+) for each UTMB Index, with the margin to the 48h00 cutoff.

#TheWildTruth 127K: predicted finish time by UTMB Index
UTMB Index	Predicted finish	Average pace	Margin to cutoff
850	19h24	9:10 /km	+28h36
800	21h13	10:01 /km	+26h47
750	23h11	10:57 /km	+24h49
700competitive	25h21	11:58 /km	+22h39
650	27h42	13:05 /km	+20h18
600	30h17	14:18 /km	+17h43
550	33h06	15:38 /km	+14h54
500mid-pack	36h11	17:06 /km	+11h49
450	39h33	18:41 /km	+8h27
400back of the pack	43h14	20:26 /km	+4h46
350	47h16	22:20 /km	+0h44
300	51h40	24:24 /km	3h40 past the cutoff

The 48h00 cutoff sits at about Index 341. The typical winning time, 33h42, sits at about Index 540. At the 2025 edition, the median of the 4 finishers took 36h57, about Index 488. A model estimate, not an official ITRA or UTMB figure.

From a result you already have

What the predictor gives on #TheWildTruth 127K for a few common reference results.

#TheWildTruth 127K: predicted finish from reference results
Road marathon	3h00 → 31h51	3h30 → 37h10	4h00 → 42h29	4h30 → 47h47
50 km trail, 2,000 m D+	5h30 → 26h41	6h30 → 31h33	7h30 → 36h23	8h30 → 41h12

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

For arrival times at each checkpoint, use the #TheWildTruth 127K aid station planner.

#TheWildTruth 127K course in numbers

Climbing per km: 86 m
ITRA km-effort: 236 (100M)
Highest point: 2,544 m
Biggest climb: +1,666 m over 13.6 km at 11.7% (through Trecere Lupșa)
Steepest climb: +847 m over 2.3 km at 35.1% (from La Fundu Văii)
Longest descent: -1,364 m over 9.3 km at 14.1% (down to Berivoi base camp (Finish))
Track climbing above 3%: 44%
Winning time / cutoff: 33h42 / 48h00 (1.4x the winner's time)

Section-by-section climbs, descents and grades are on the #TheWildTruth 127K course page.

Predict your #TheWildTruth 127K finish time from a reference race result, adjusted for the course's 127 km and roughly 10,900 m of elevation gain. The overall cutoff is 48h.

About Făgăraș Rocks! - #TheWildTruth ultra skyrace

Făgăraș Rocks! - #TheWildTruth ultra skyrace covers 127 km with around 10,900 m of elevation gain, starting in Berivoi, Romania. The overall cutoff is 48 hours.

Crew access is allowed at Sat de vacanță Breaza (82 km), Poiana Gropile (104.5 km) and Scoarța (116.5 km). Drop bags are available at La Fundu Văii 2, Sat de vacanță Breaza and Poiana Gropile.

Checkpoint data approximate - verify against the current official race guide at fagarasrocks.ro before your race.

How the prediction works

Your result becomes a UTMB Index, mapped onto #TheWildTruth 127K by the calibrated model behind the ITRA / UTMB Index Estimator. Full methodology.

Build a training plan targeted at your #TheWildTruth 127K goal time

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

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