Race Time Predictor
How fast will you run CDH 110K?
CDH 110K race stats pre-loaded (110 km, 6,400 m D+). Enter a known race result to get an elevation-adjusted finish time estimate.
110km6,400m D+Winner: ~12h09Cutoff: 28h
Full Val d'Aran by UTMB - CDH 110K course data: aid stations, cutoffs, course profile
- ✓Your race (done)
- 2About you
- 3Your finish
1Your race
- The course
110 km, but it costs 204 km-effort. The 6,400 m of climbing sets the pace.
2How should we estimate you?
Start with
Pick whichever you have. After your first estimate we ask for the other - two inputs give a firmer read.
Same as gain. Edit if different.
Hours, or h:mm
- TrailMath
Got a UTMB index? Hand it over, it's the straightest read I get. No index? A long, hilly past race works too.
3 · Your predicted finish
174 km-effort (ITRA, gain only)204 km-effort
Add a past race or your index to get a finish time.
CDH 110K finish times by UTMB Index
Predicted finish on the CDH 110K course (110.0 km, 6,400 m D+) for each UTMB Index, with the margin to the 28h00 cutoff.
| UTMB Index | Predicted finish | Average pace | Margin to cutoff |
|---|---|---|---|
| 850 | 12h44 | 6:57 /km11:11 /mi | +15h16 |
| 800 | 13h55 | 7:36 /km12:13 /mi | +14h05 |
| 750 | 15h13 | 8:18 /km13:22 /mi | +12h47 |
| 700competitive | 16h38 | 9:04 /km14:36 /mi | +11h22 |
| 650 | 18h11 | 9:55 /km15:58 /mi | +9h49 |
| 600 | 19h53 | 10:51 /km17:27 /mi | +8h07 |
| 550 | 21h44 | 11:51 /km19:05 /mi | +6h16 |
| 500mid-pack | 23h45 | 12:57 /km20:51 /mi | +4h15 |
| 450 | 25h58 | 14:10 /km22:48 /mi | +2h02 |
| 400back of the pack | 28h23 | 15:29 /km24:55 /mi | 0h23 past the cutoff |
| 350 | 31h01 | 16:55 /km27:14 /mi | 3h01 past the cutoff |
| 300 | 33h55 | 18:30 /km29:46 /mi | 5h55 past the cutoff |
The 28h00 cutoff sits at about Index 408. The typical winning time, 12h09, sits at about Index 877. At the 2026 edition, the median of the 854 finishers took 22h00, about Index 543. A model estimate, not an official ITRA or UTMB figure.
From a result you already have
What the predictor gives on CDH 110K for a few common reference results.
| Road marathon | 3h00 → 20h42 | 3h30 → 24h09 | 4h00 → 27h36 | 4h30 → 31h03 |
|---|---|---|---|---|
| 50 km trail, 2,000 m D+ | 5h30 → 17h31 | 6h30 → 20h43 | 7h30 → 23h53 | 8h30 → 27h03 |
Road marathons use the tool's rougher power-law fallback.
To prepare each checkpoint, use the CDH 110K aid station planner.
CDH 110K course in numbers
- Climbing per kmClimbing per mile
- 58 m307 ft
- ITRA km-effort
- 174 (100M)
- Highest point
- 2,520 m8,268 ft
- Biggest climb
- +1,529 m over 11.1 km at 12.6% (Refugi Honeria to Mines de Liat)+5,016 ft over 6.9 mi at 12.6% (Refugi Honeria to Mines de Liat)
- Steepest climb
- +1,108 m over 5.9 km at 18.7% (through Santet Escunhau)+3,635 ft over 3.7 mi at 18.7% (through Santet Escunhau)
- Longest descent
- -1,234 m over 14.3 km at 7.2% (through Mont-Romies)-4,049 ft over 8.9 mi at 7.2% (through Mont-Romies)
- Track climbing above 3%
- 38%
- Winning time / cutoff
- 12h09 / 28h00 (2.3x the winner's time)
Section-by-section climbs, descents and grades are on the CDH 110K course page.
Predict your CDH 110K finish time from a reference race result, adjusted for the course's 110 km and roughly 6,400 m of elevation gain. The overall cutoff is 28h.
About Val d'Aran by UTMB - CDH 110K
Val d'Aran by UTMB - CDH 110K covers 110 km with around 6,400 m of elevation gain, starting in Les, Spain. The overall cutoff is 28 hours.
Crew access is allowed at Salardú (60.84 km) and Arties (96.06 km). Drop bags are available at Salardú.
Checkpoint data approximate - verify against the current official race guide at valdaran.utmb.world before your race.
How the prediction works
Your result becomes a UTMB Index, mapped onto CDH 110K by the calibrated model behind the ITRA / UTMB Index Estimator. Full methodology.
Build a training plan targeted at your CDH 110K goal time
TrailMath uses these models to build periodized plans adjusted to your goals and terrain.
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