HYROX For Women Phase 1: Building Your Foundation

Phase 1 is where you build the engine and learn the language of HYROX. Every easy run, every practice station rep, and every strength set is laying the foundation for race day.

This phase covers Weeks 1-3 of your 12-week HYROX preparation. The focus is on building your aerobic base, establishing station familiarity, and developing baseline strength patterns. You are not chasing times yet. You are building repeatable patterns that your body can execute under fatigue.

What happens in Phase 1

The primary goals of this phase are:

• Build your aerobic base with steady-state running at zone 2 (conversational pace). Your aerobic engine is the foundation of HYROX performance.
• Establish station familiarity. You will practise all 8 HYROX stations at 60-70% of race weight. The focus is on technique and rhythm, not speed or load.
• Develop baseline strength through compound movements: squats, deadlifts, split squats, rows, and presses. Three sets, moderate load, building movement quality.
• Build upper body strength foundation, which is critical for SkiErg, sled pull, rowing, and farmer's carry performance.

Station loads in this phase are deliberately light. You are learning how each station feels, finding your rhythm, and building the movement patterns that will serve you when the loads increase in Phase 2.

Your weekly structure

Each week follows the same 5-day structure:

• Day 1: Lower body strength (cable squats, Romanian deadlifts, split squats) + running intervals (400m repeats building to 800m)
• Day 2: Odd stations (SkiErg, Sled Push, Burpee Broad Jump, Rowing) at 60-70% race loads, 3 rounds
• Day 3: Upper body strength (bent-over rows, dumbbell bench press, cable pull-downs, dumbbell shoulder press) + aerobic base run (25-30 min zone 2)
• Day 4: Even stations (Sled Pull, Sandbag Lunges, Wall Balls, Farmer's Carry) + running intervals
• Day 5: Full body power (kettlebell swings, dumbbell thrusters, box jumps) + station combinations or extended aerobic work

Week by week

Week 1: Clean slate. Your first exposure to all 8 stations at light loads. Running starts at 400m intervals and 25-minute easy runs. Focus on showing up consistently and learning the movements. Do not worry about pacing or performance yet.

Week 2: Building execution. Same structure, slightly better form. You start to find your rhythm on each station. Running intervals increase to 600m. The movements should feel more familiar now.

Week 3: Owning the basics. Final foundation week. Stations feel comfortable, movement patterns are grooved, and your aerobic base is establishing. Running intervals reach 800m. You are ready for the intensity increase in Phase 2.

Intensity and RPE

Phase 1 intensity is RPE 6-7 across all sessions. RPE 6-7 means you are working but still in control. You can speak in short phrases, your breathing is deeper but not strained. You should finish each session feeling like you had more in the tank.

Station RPE should be at the lower end of this range (RPE 6). Strength work sits at RPE 7. Running intervals are at RPE 6-7, depending on the distance and recovery available.

If you find yourself regularly above RPE 7 in this phase, reduce the load. The goal is quality movement, not intensity. Intensity comes in Phase 2.

Cycle-aware adjustments

Follicular Phase (Days 1-14): Energy is on your side. Push the extra sets where indicated. Take advantage of better recovery to build volume. This is a good time to focus on progressive overload in your strength work.

Luteal Phase (Days 15-28): Maintain your loads but listen to your body. If a session feels harder than expected, reduce by one set on compound lifts. Keep your running pacing the same but allow yourself longer recovery between intervals. Technique and pacing over peak output.

Use this phase to learn how your cycle affects your training. That self-awareness is a performance skill that will serve you throughout the program and on race day.

Tips for Phase 1

• Do not skip the warm-ups. Every session starts with a structured warm-up that prepares you for the work ahead. These are not optional.
• Focus on technique over speed. Clean reps at light loads build the movement quality that supports heavier loads later. Sloppy reps at any weight build bad habits.
• Learn your station rhythms. Find a sustainable pace on the SkiErg, a consistent hand-over-hand cadence on the sled pull, and a steady wall ball tempo. These rhythms carry through to race day.
• Run easy on easy days. Zone 2 means conversational pace. If you cannot speak in full sentences, slow down. Your aerobic base is built at this intensity, not faster.
• Keep a training log. Note your station loads, running paces, and how you felt. This data helps you track progress and adjust for your cycle.

What comes next

After three weeks of foundation work, you move into Phase 2: Development (Weeks 4-7). Station loads increase to 80-90% of race weight, running pushes into threshold territory, and strength work gets heavier. Phase 1 gave you the patterns. Phase 2 puts load on them.

For a full overview of the program structure, read the HYROX for Women Program Guide.