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Ultra-Trail Harricana - UTHC 125

UTHC 125 Aid Station Planner

All 13 UTHC 125 checkpoints pre-loaded. Enter your goal finish time to get estimated arrival times at every aid station.

124.1km4,028m D+13 checkpointsCutoff: 29h

Full Ultra-Trail Harricana - UTHC 125 course data: aid stations, cutoffs, course profile

Enter a goal UTHC 125 finish time and get estimated arrival times at every checkpoint - 124.1 km with around 4,028 m of climbing, with crew and drop-bag points flagged.

Turns every arrival into a clock time and every cutoff into a margin.

Terrain changes how the goal time is shared between segments, not the total. One surface everywhere cancels out.

Checkpoints (13)

Crew may meet you at
  • Marmotte 34.6 km, by Fri 20:33
  • Hautes-Gorges 60.8 km, by Sat 01:52
  • Split Naak 109.2 km, by Sat 10:38
Drop bags
  • Hautes-Gorges 60.8 km, by Sat 01:52

  1. Mont du lac a l'Empechelikely hiking (pace)

    Fri 16:07
    Dist (km)
    15.2
    D+ (m)
    +566
    Seg time
    3:07:35
    Seg pace/km
    12:20

  2. Morioslikely hiking (pace)

    Fri 18:36
    Dist (km)
    27.5
    D+ (m)
    +322
    Seg time
    2:29:18
    Seg pace/km
    12:08

  3. Marmottelikely hiking (pace)

    Fri 20:33
    Dist (km)
    34.6
    D+ (m)
    +479
    Seg time
    1:56:30
    Seg pace/km
    16:25

  4. Chouettelikely hiking (pace)

    Fri 23:57
    Dist (km)
    50.9
    D+ (m)
    +712
    Seg time
    3:24:13
    Seg pace/km
    12:32

  5. Hautes-Gorges

    Sat 01:52
    Dist (km)
    60.8
    D+ (m)
    +197
    Seg time
    1:55:02
    Seg pace/km
    11:37

  6. Geai bleu

    Sat 03:12
    Dist (km)
    68.5
    D+ (m)
    +155
    Seg time
    1:19:23
    Seg pace/km
    10:19

  7. Coyote

    Sat 05:57
    Dist (km)
    83.4
    D+ (m)
    +545
    Seg time
    2:45:30
    Seg pace/km
    11:06

  8. Zec Lac-au-Sable

    Sat 07:55
    Dist (km)
    93.6
    D+ (m)
    +365
    Seg time
    1:57:40
    Seg pace/km
    11:32

  9. Epervier

    Sat 09:19
    Dist (km)
    102.3
    D+ (m)
    +45
    Seg time
    1:24:23
    Seg pace/km
    9:42

  10. Split Naak

    Sat 10:38
    Dist (km)
    109.2
    D+ (m)
    +207
    Seg time
    1:18:40
    Seg pace/km
    11:24

  11. Montagne Noirelikely hiking (pace)

    Sat 11:59
    Dist (km)
    115.5
    D+ (m)
    +353
    Seg time
    1:21:33
    Seg pace/km
    12:57

  12. Mont Grand-Fonds (Finish)

    Sat 13:29
    Dist (km)
    124.1
    D+ (m)
    +82
    Seg time
    1:29:13
    Seg pace/km
    10:22

Highlighted rows use a pace heuristic (>12 min/km / >19 min/mi) - likely hiking by speed, not grade. The grade-based power-hike cue is ≥15% (see GAP and Incline tools). Times are distributed proportionally by km-effort.

Cutoff buffers are estimates from your goal time and published barriers. Courses and barriers change - verify against the official race guide.

Next step

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About Ultra-Trail Harricana - UTHC 125

Ultra-Trail Harricana - UTHC 125 covers 124.1 km with around 4,028 m of elevation gain, starting in Zec des Martres, Canada. The overall cutoff is 29 hours.

Crew access is allowed at Marmotte (34.6 km), Hautes-Gorges (60.8 km) and Split Naak (109.2 km). Drop bags are available at Hautes-Gorges.

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

The science behind km-effort pacing

Most runners build race pacing plans by dividing total distance evenly - which ignores the fact that an uphill kilometre takes far longer than a flat one. This planner uses TrailMath's enhanced km-effort model to distribute your goal time proportionally by effort, not by distance.

The km-effort formula for each segment is: distance_km + gain_m/100 + loss_m/150. This is TrailMath's extension of the standard ITRA gain-only formula, which adds descent cost based on Minetti's finding that steep technical descents carry real metabolic load. A 5km segment with 500m of gain and 200m of loss has an effort of 5 + 5 + 1.3 = 11.3 km-effort - equivalent to running 11.3km flat. Time is allocated proportionally to this effort score.

Why gain and loss have asymmetric costs. Minetti et al. (2002) mapped the metabolic cost of inclined locomotion across gradients from -45% to +45%. The key findings: metabolic cost rises steeply above 15-20% uphill grade, making power hiking more energy-efficient than running on steep climbs. On descents, eccentric muscle loading (quads acting as brakes) creates its own metabolic cost - steep technical descents are far more demanding than the same gradient on a smooth fire road. The gain/100 + loss/150 asymmetry in the formula reflects this - gain is more costly per metre than loss, but loss is not free.

Power hiking threshold is flagged at segments where your computed pace exceeds 12 min/km (19 min/mile). This threshold corresponds to the crossover point where walking biomechanics become more efficient than running on steep uphill terrain. Strategic power hiking on marked segments preserves leg muscle for descents and reduces overall race time compared to running everything.

This km-effort model is the same formula used in TrailMath's training engine for load calculation (following Dan Johnston's asymmetric elevation scoring methodology), ensuring consistency between how your training load is measured and how your race effort is planned.

Minetti AE et al. (2002). Energy cost of walking and running at extreme uphill and downhill slopes. J Appl Physiol. 93(3):1039-46. Minetti AE et al. (1995). Mechanical determinants of gradient walking energetics in man. J Physiol. 481(Pt 1):235-43. ITRA. km-effort formula. International Trail Running Association. itra.run

Related tools

UTHC 125 Finish Time Predictor Predict your UTHC 125 finish time Nutrition Calculator Calories, carbs & hydration targets Aid Station Planner Checkpoint times & pacing plan

Track your UTHC 125 plan, crew notes, and live progress in the app

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

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