Her Trails Coaching

GPT 100 Miler Solo
Program for Women

Built for the full scale of the GPT100 Miler. 162 kilometres, 7,700 vertical metres, technical mountain terrain, and the mental demand of moving through day and night across one of Australia's most rugged trail systems. This program coaches you as a whole runner: body, mind, fuelling, logistics and the quiet resilience that 100 miles actually requires.

Program

20 Weeks

Race Date

6 Nov 2026

Format

Continuous / 50hr cutoff

Location

Gariwerd / Grampians, VIC

Distance

162km

Elevation

7,700m+

Access

Platform + App

The Course

Running the GPT100 Miler

The GPT100 Miler is a point-to-point journey across the entire Grampians Peaks Trail, beginning at Mt Zero and finishing in Dunkeld. It is one of Australia's defining mountain ultras, with sustained climbs, rugged descents, exposed ridgelines, remote terrain, and long stretches that ask you to keep moving well after comfort has left the room.

You will hike significant portions of this course. You will run through at least one full night. You will make hundreds of small decisions about pacing, eating, gear and effort across 30 to 50 hours of forward motion. These are skills, and they are trained.

This program is built specifically for those demands. Not just to get you to the start line, but to help you arrive with the durability, mountain skill, fuelling practice and internal steadiness required for 100 miles.

The Four Stages

What you will actually run

The 162km course traverses the full spine of the Grampians range across four stages, each with its own terrain character and physical demand. Understanding what each stage asks shapes how we train for it.

 

Stage 1

Mt Zero to Halls Gap

49.5km  |  2,000m gain

Begins with the iconic Flat Rock climb at Mt Zero and moves immediately into exposed ridgelines, sandstone scrambles and the dramatic cliffs of the northern Grampians. Rocky singletrack through Mt Staplyton and remote bushland camps before a long descent through forest and ferns into Halls Gap. The most technical scrambling on the entire course lives here.

Demands: rock scrambling confidence, ankle stability on uneven sandstone, pacing discipline in the opening 50km

 

Stage 2

Halls Gap to Mt William

37.5km  |  2,350m gain

The highest concentration of climbing on the course. Moves through the Wonderland Range and Grand Canyon, past the Pinnacle, and up to Mt William at 1,167m, the highest point in the Grampians. Continual long climbs with clifftop ridge walking, exposed trail and 360-degree views. This stage is relentless in its vertical demand.

Demands: sustained climbing efficiency, conservative effort management, mental composure across repeated ascents

 

Stage 3

Mt William to Griffin Fireline

42km  |  1,795m gain

Descends from Mt William and crosses the remote Major Mitchell Plateau, the most isolated section of the course. Passes over Durd Durd at 1,167m, the race's highest point, then drops through boulder fields, rock-hopping sections and newly built trail. Undulating terrain with rocky outcrops and steel mesh walkways. Night running is likely here for most solo runners.

Demands: self-sufficiency in remote terrain, controlled descent through boulder fields, night navigation, water management

 

Stage 4

Griffin Fireline to Dunkeld

33km  |  1,555m gain

The Serra Range. Pound for pound the most scenic section of the race, and one of the most punishing. Three separate steep climbs over Signal Peak, Mt Abrupt and Mt Sturgeon, all on stepped trails that are relentless on exhausted legs. Sharp ridgelines, high escarpments and dramatic descents before the trail opens into river valleys and the finish at Dunkeld.

Demands: climbing power on depleted legs, technical descent control, fuelling execution deep into the race, finishing composure

How We Train For It

How we build you toward 100 miles

The 20 weeks move through five phases: Foundation (aerobic consistency and recovery habits), Building (progressive volume and elevation), Endurance (extended time on feet and fatigue resistance), Peak Specificity (race simulation, crew planning, night running), and Taper (a deliberate 3 to 4 week reduction that protects both freshness and belief).

Training is released weekly. This is intentional. Rather than locking into a rigid 20-week plan, you meet each week where you are: physically, mentally and hormonally. Cycle-aware adaptation is built in. The aerobic base is the engine, with approximately 80% of sessions at conversational effort and higher intensity layered in during Build and Peak phases only.

Climbing and Hiking Power

With 7,700m of vertical gain, you will hike 40 to 50 percent of this course. That is strategy, not failure. Power hikes, tempo climbs, run-to-hike transitions and sustained ascent sessions are programmed throughout, building the capacity to move efficiently uphill for hours. Pole integration is included for runners who plan to use them.

Technical Descent Control

Sandstone slabs, boulder fields and stepped trails on exhausted legs. Dedicated descent sessions train foot placement, quad loading and movement efficiency on rocky surfaces so the technical sections of Stages 3 and 4 do not unravel your race when fatigue is highest.

Back-to-Back Endurance

The final stages arrive when you already have 90km in your legs. Back-to-back long run weekends build toward 9 to 11 hours across two days with elevation: a longer day when fresh, a shorter day on tired legs. The fatigue accumulation is the training. These weekends simulate the reality of Stages 3 and 4 and are followed by extended recovery windows.

Night Running and Race Logistics

Most runners will move through at least one full night on course. Night sessions are introduced in the Build phase and repeated through Peak: headlamp familiarity, depth perception on technical terrain, eating in the dark. Crew planning, checkpoint strategy, drop bag preparation and pacer logistics are covered in dedicated sessions during Weeks 14 to 17.

Fuelling Across 30+ Hours

Eating for 30 to 50 hours on trail is qualitatively different from 100km fuelling. Gut training, solid food tolerance, hydration in remote terrain, eating while climbing, and managing nutrition across temperature shifts from day heat to overnight cold. Fuelling practice is structured into long runs and back-to-back weekends so race-day nutrition is a trained skill.

Deep-Race Composure

The Major Mitchell Plateau at night. The stepped climbs of the Serra Range on spent legs. At 100 miles, you may have 6 to 8 hours where forward motion is a deliberate choice. This program includes specific mindset work: breath patterns for sustained climbing, internal dialogue frameworks, and decision-making practice under fatigue. Recovery is training. Adaptation happens in rest, not in the session itself.

Before You Begin

This is a high-demand program

To step in well, you should already have a strong endurance base: at least one 100km finish in the past 12 months, consistent weekly mileage of around 60km or more, and long runs extending beyond 30km. From there, we guide you step by step into the specific demands of mountainous 100 mile racing.

If you are unsure whether this program is the right fit, reach out to us at [email protected] and we can help you find the most supportive starting point.

What's Included

Everything you need, in one place

Designed in close collaboration with Ray Zahab, a pioneering ultra runner and adventurer who has run over 17,000 kilometres across the world's deserts and completed multiple unsupported expeditions in some of the coldest places on the planet. His practical mountain wisdom on mindset, posture, breath and fuelling strategy sits alongside the Her Trails coaching team. This is not a plan you follow alone. You are coached in real time, as a whole runner, by a team built by and for women.

Training Program

  • 4 to 6 run sessions per week with progressive B2B long runs building to 9 to 11 hours
  • 1 to 2 strength sessions weekly: posterior chain, single-leg stability, joint resilience
  • Scheduled mobility and yoga sessions for durability and range
  • Crew planning, drop bag strategy and race-week preparation
  • 3 to 4 week taper with deliberate volume reduction for race-day freshness

Coaching + Community

  • Weekly live coaching calls, join live or watch replays
  • Cycle-aware adaptation with flex days for energy and load management
  • Nutrition guidance and structured fuelling practice built into long runs
  • Private community of runners preparing for the same race
  • Access to the Her Trails community for ongoing connection

Also Worth Considering

Training for more than one goal this season?

Instead of purchasing individual programs, many runners choose the Her Trails All-In Membership for broader training support across the year. If you plan to complete more than one program this season, the All-In Membership is usually the most cost-effective option and gives our coaching team the ability to support you as you transition between races, training blocks and recovery periods.

Best Value

Her Trails All-In Membership

$220 / quarter

  • Access to every Her Trails program including trail, road and strength
  • Community and coaching platform with weekly coaching calls
  • Strength and mobility training for runners
  • Coaching support between races and training blocks
  • Ongoing community support and accountability
  • Discounts on merchandise and selected partner opportunities
Explore the All-In Membership