Hyrox Partner Workout: Doubles Sessions

Why Partner Training Is Different From Solo HYROX^® Prep

Most athletes preparing for HYROX^® Doubles spend the majority of their training time alone. They run their own tempo sessions, hit their own station intervals, and show up on race day expecting two individual fitness profiles to combine cleanly. They usually do not.

HYROX^® Doubles is not two solo performances running in parallel. Partners alternate every 1 km run — both athletes run every lap — and alternate individual reps at each station until the full volume is complete. That structure creates a specific physiological demand that solo training cannot replicate: a repeating work-rest-work rhythm where your recovery window is exactly one partner's effort, and the quality of your output depends directly on how well your recovery lines up with their tempo.

ROXBASE data from 800,000+ race entries shows that Doubles teams with structured joint training history finish 7–12 minutes faster than those who arrive without shared preparation.^[1] The gap is not primarily a fitness gap — it is a coordination gap. Partner workouts close it.

The Doubles division is currently the fastest-growing in the sport. More athletes are registering as teams than in any previous season, which means more competition at every finish-time band. For a complete breakdown of how the Doubles format works and what race day looks like, the HYROX^® Doubles Guide covers the full structure. For the training plan that wraps these sessions into a weekly schedule, see the HYROX^® Doubles Training Plan.

This article focuses specifically on the partner workout sessions — four distinct formats for building the alternating work-rest rhythm, practicing station handoffs, and calibrating joint pacing before race day.

---

The Core Principle: Alternating Rest-Work Rhythm

Before running through the sessions, the underlying mechanics are worth understanding clearly — because most partner training fails by ignoring them.

In Doubles, when your partner is working a station, you are resting. But that rest is time-bounded: it ends exactly when they finish their last rep. Your heart rate coming into a handoff is not fully recovered. You are picking up a set of Farmer's Carry handles at 140 bpm, not 100. The relevant training adaptation is not maximum output at a station — it is maximum output at a station after incomplete recovery.

This means partner workouts should be structured so the rest interval between your sets is your partner's working time, not a fixed clock. If your partner takes 25 seconds to complete their Wall Ball reps, you rest 25 seconds. If they slow down due to fatigue in week 10 of training, you rest longer. The drift in rest interval quality is exactly what race day will feel like.

Both athletes also run every kilometer in the Doubles format — this is a common misconception. One partner does not run while the other rests. Both run, then one athlete goes to the station while the other waits. This makes running fitness a shared cost across both athletes.^[2] Partner workouts need to reflect that — the run legs are not rest.

---

Session 1: Station Alternating Drill (Technique Focus)

Duration: 45–55 minutes Intensity: 65–70% effort Goal: Build clean handoff mechanics and establish work-rest rhythm at low intensity Best used in: Weeks 1–4 of a doubles prep block

This is the foundation session. Do not skip it in favor of higher-intensity work early in a training block. The purpose is not fitness — it is rehearsing the mechanics that will be executed under pressure later.

Structure

Warm-up (10 min): Both athletes run 1 km together at an easy conversational pace, then complete 5 minutes of joint mobility (hip circles, thoracic rotation, band pull-aparts).

Main set: Run through four stations in alternating format. Use the following sequence to mirror the Doubles race structure:

1. Run 1 (1 km, together): Both athletes run at an easy-to-moderate pace, staying within 5 meters of each other. After the run, Athlete A goes to the station. Athlete B rests.
2. SkiErg (alternating single reps, 60 total): Athlete A completes one rep, taps Athlete B, Athlete B completes one rep. Continue until 60 reps are done. Use a verbal "GO" or shoulder tap as the handoff cue — agree on this before starting and do not vary it.
3. Run 2 (1 km, together): Both athletes run. After the run, Athlete B goes to the station. Athlete A rests.
4. Sled Push (alternating 25 m lengths, 4 total): Athlete B pushes one 25 m length, tags Athlete A, continues alternating for 4 lengths total.
5. Run 3 (1 km, together): Athlete A goes to station after run.
6. Rowing (alternating 100 m segments, 600 m total): Switch every 100 m. The tagging cue here is the athlete returning the handle to the catch position and stepping off the seat.
7. Run 4 (1 km, together): Athlete B goes to station after run.
8. Wall Balls (alternating single reps, 50 total): Athlete B throws one rep, Athlete A catches the ball and immediately throws one rep. This mimics the single-rep alternating format used in competition.

Cool-down (10 min): Easy jog, stretching.

What to Track

Time each handoff. The goal for this session is consistency, not speed. If handoffs are averaging over 8 seconds, identify the cause — late cue, wrong positioning, hesitation about whose turn it is — and repeat the drill before moving to the next station.

Also note whether the rest interval feels proportionate. If one partner is significantly slower on a station, the other partner's rest extends — and when they begin their set, they may feel under-cooked. This asymmetry is worth flagging early.^[3]

---

Session 2: Doubles Race Simulation (Pacing Focus)

Duration: 70–90 minutes Intensity: 80–85% of race effort Goal: Calibrate joint pacing across a full-race-length alternating structure Best used in: Weeks 5–8 of a doubles prep block

This session mimics the full Doubles race structure: 8 runs of 1 km (both athletes run each), 8 stations (alternating reps), full handoffs throughout. The load is not race weight at every station — that comes in Week 10. This session is about pacing.

Structure

Run all eight stations in race order:

1. SkiErg — 1,000 m total, alternating single reps
2. Sled Push — 50 m total, alternating 25 m lengths
3. Sled Pull — 50 m total, alternating 25 m lengths
4. Burpee Broad Jumps — 80 m total, alternating single reps
5. Rowing — 1,000 m total, alternating 100 m segments
6. Farmer's Carry — 200 m total, alternating 50 m lengths
7. Sandbag Lunges — 100 m total, alternating 25 m lengths
8. Wall Balls — 100 reps total, alternating single reps

Before you start, both athletes agree on a target run pace. Use the following reference from the HYROX^® Workout Guide:

Target Finish Band	Joint Run Pace Per Km
Sub-75 min	4:20–4:40 /km
Sub-90 min	5:15–5:35 /km
Sub-120 min	6:45–7:15 /km

At the 400 m mark of Run 1, one partner calls out the split. If you are ahead of pace, back off — first-half blowup in Doubles usually happens on the runs, not the stations.

What to Track

Record each athlete's individual station time (total time spent working, not watching). By the end of the session, both athletes should have four station times each. Compare these against your pre-race individual station benchmarks. If one partner is taking 30+ seconds longer on a specific station than expected, that is your highest-priority fix for the following week.

Also record joint run pace per kilometer. If one athlete is consistently pushing the pace above target on early laps, address it directly. The faster runner accommodating the slower runner's pace costs the team nothing — the slower runner blowing up in the second half costs minutes.^[4]

For a detailed breakdown of how to apply this pacing data to your race-day plan, see HYROX^® Doubles Pacing.

---

Session 3: Station Handoff Overload (Fatigue Drilling)

Duration: 35–45 minutes Intensity: 85–90% on stations, moderate on runs Goal: Ingrain handoff mechanics under genuine fatigue Best used in: Weeks 6–10 of a doubles prep block

Transitions that work at 65% effort often fall apart at 88%. This session isolates that problem by compressing volume and raising station intensity while keeping runs at moderate effort.

Structure

Set 1 — Sled Complex (15 min):

• Both athletes run 1 km at moderate pace
• Athlete A: Sled Push 25 m at race load
• Handoff: Athlete A taps Athlete B's shoulder and steps clear immediately
• Athlete B: Sled Push 25 m at race load
• Handoff back to Athlete A
• Athlete A: Sled Pull 25 m
• Handoff
• Athlete B: Sled Pull 25 m
• Rest 3 minutes (both athletes)

Time every handoff. The target is under 5 seconds from the moment the working athlete completes their rep to the moment the incoming athlete begins. After two rounds, handoffs should be automatic — both athletes know exactly when to approach and where to stand.

Set 2 — Upper Body Alternating Complex (15 min):

• Both athletes run 1 km at moderate pace
• SkiErg: 80 reps, alternating every 5 reps. Agreement on set size is pre-determined — "5 and switch" is the protocol, agreed before the set begins. No renegotiating mid-set.
• Rowing: 600 m, alternating every 100 m
• Rest 3 minutes

The critical skill here is not the exercise — it is the handoff cue under physical stress. At 85% effort on the SkiErg, the outgoing athlete is breathing hard and cognitively loaded. The entry cue must be precise enough that the incoming athlete starts without hesitation.

Set 3 — Carry and Lunge Complex (15 min):

• Both athletes run 1 km at moderate pace
• Farmer's Carry: 150 m, alternating every 50 m
• Sandbag Lunges: 80 m, alternating every 20 m

The Carry and Lunge stations are where grip fatigue and leg fatigue accumulate simultaneously. This set tests whether handoffs hold up when both athletes are compromised, not just one.

Cool-down: 5 minutes easy movement, partner stretch.

Why This Works

The handoff overload session closes the gap between practiced mechanics and race mechanics. Most teams rehearse transitions early in the session when both athletes are fresh. This session forces the handoff to work when one athlete is still breathing hard from their Sled Push and the other is about to enter at high effort. That is the condition that matters on race day.

---

Session 4: Full Race Dress Rehearsal

Duration: Race duration + 15 minutes Intensity: 90–95% — target race effort Goal: Execute the complete Doubles race plan under near-race conditions Best used in: Weeks 10–11 of a doubles prep block, once per week maximum

This is not a fitness session. By week 10, both athletes are trained. This is a plan execution session — a full run-through of your station assignment, your handoff protocol, your run targets, and your communication system, in order, at race effort.

Pre-Session Checklist

Before you begin, confirm:

• Who starts (Athlete A or Athlete B runs km 1 and then rests while partner takes Station 1)
• Station assignment for all eight: write it on an index card or tape it to your forearm
• Handoff cue: verbal or physical, pre-agreed, not improvised
• Run pace target per km band
• Communication signals: green (on pace), yellow (at limit), red (I need you to push harder on the next segment)

For a full framework on managing these communication signals in-race, see HYROX^® Doubles Communication.

Structure

Run all eight stations at race weight and race pace, in order, with 1 km runs between each. Both athletes run every kilometer. Record:

• Every individual station time
• Every handoff time
• Every kilometer split

Post-Session Review

After the dress rehearsal, sit down together and go through the data:

1. Which station handoffs exceeded 6 seconds?
2. Which run kilometer was the fastest — did you go out too hard?
3. Did the station assignment hold up, or did one partner look like they were struggling on their assigned station?
4. Did the communication signals get used? If not, was it because everything was fine, or because neither partner wanted to signal weakness?

The dress rehearsal is only valuable if you do the debrief. Without the debrief, you are just doing a hard workout. With the debrief, you have a race plan that is validated under near-race conditions.^[5]

For the complete training structure that positions these sessions within a 12-week preparation block, the HYROX^® Training Plan covers weekly structure, loading progressions, and taper protocols.

---

Practicing Station Splits and Handoffs

Station splits — the division of reps between partners — determine both the pace and the effort balance at each station. Getting them right in training is the single most impactful coordination skill a doubles team can develop.

The Split Decision Process

Step 1 — Solo benchmark each station. Both athletes independently time themselves on each of the eight stations at race-load intensity. Record the results. The time gap between partners at each station is the data your split decision rests on.

Step 2 — Assign split type. For stations where the time gap is under 15 seconds, use a strict equal split — alternating every rep or every set, with no deviation. For stations where the gap exceeds 20 seconds, the stronger athlete leads (goes first) and sets the working rhythm. Going first is a meaningful structural advantage because it allows the stronger athlete to dictate tempo rather than matching a slower cadence.

Step 3 — Write the assignment card. The card lists each station, which athlete leads, and the set size if alternating in blocks. Use this card in every training session from week 5 onward. If the card changes, update it before the next joint session — do not improvise from memory.

Step 4 — Rehearse under progressive fatigue. Run the assignment card at 70% effort in week 5, at 80% in week 7, at 90% in week 9, and at race effort in week 10. The card should feel automatic by race day.

Common Handoff Errors

Starting before the cue. The incoming athlete begins their set before the outgoing athlete signals. This causes a timing mismatch that disrupts the station rhythm. Fix: the incoming athlete never moves until the agreed cue is given, regardless of whether they are ready.

Drifting away from the equipment. The resting athlete stands 3–4 meters from the station while waiting. After the handoff, they have to close distance before beginning — this adds 2–3 seconds per transition. Fix: the resting athlete remains within arm's reach of the equipment at all times.

Renegotiating set size mid-station. One partner decides mid-station that the agreed sets of 5 feel too hard and calls for sets of 3 instead. This creates confusion and slows the transition cadence. Fix: set size is agreed before the station begins. If the load is wrong in training, adjust it for the next session — do not improvise during the set.

---

How These Sessions Fit Into Your Overall Plan

These four sessions are not meant to replace individual training — they complement it. The strongest doubles teams train individually three to four times per week and together two times per week during the peak preparation block. Individual sessions build the fitness each athlete needs to execute their assigned stations. Partner sessions build the coordination that converts individual fitness into team performance.

Minimum joint sessions before a doubles race: four weeks of twice-weekly partner training. Under that threshold, coordination deficits at transitions and mismatched pacing calibration will cost more time on race day than any amount of additional individual fitness would save.

The Doubles division is growing because the format is genuinely different from solo HYROX^® — more dynamic, more tactical, and more forgiving of individual fitness gaps when partners work well together. The athletes who understand that the partner workout is a specific skill, not just a training format, are the ones who show up on race day with a plan that holds.

---

Frequently Asked Questions

Do both athletes run every kilometer in HYROX^® Doubles, or do they alternate? Both athletes run every 1 km lap together. This is one of the most commonly misunderstood rules of the Doubles format. After each run, one athlete goes to the station while the other waits — but the running itself is shared, not alternating. This means running fitness is a joint requirement, not something one partner can cover for the other.

How many times per week should doubles partners train together? Twice per week during the peak four-to-six week preparation block is the standard recommendation. One session should focus on transitions and station handoffs; the other should be a full race simulation or partial doubles run at near-race pace. Training together more than three times per week often leads to over-adaptation to each other's pace rather than individual fitness development.

What is the best way to practice handoffs if we do not have access to HYROX^® equipment regularly? Prioritize the movements you can replicate with minimal equipment: running transitions, Farmer's Carry handoffs (use any carry-weight substitute), and Burpee Broad Jump transitions (no equipment required). SkiErg, Sled, and Wall Ball transitions need to be drilled on actual equipment at least once before race week — even a single gym session with proper equipment is significantly better than none.

How do we know if our station split is wrong? If one partner consistently finishes their station segment more than 20–25 seconds ahead of the other, the split is likely generating uneven fatigue. Track each partner's individual station time across multiple training sessions. If the gap is widening in the second half of sessions, the stronger partner is taking on too much early. If one partner is consistently flat on the stations assigned to them, they may be under-prepared on that movement pattern.

Should we keep the same station assignment from training into the race, or adjust on race day? Keep the same assignment. The value of the station assignment card is that both athletes enter the race with automatic recall of who does what. Adjusting on race day — even if logic suggests a change — introduces hesitation and coordination cost at handoffs. The only valid reason to change the assignment on race day is a pre-agreed contingency trigger (for example, if one partner is ill or injured before the start). Changes made for performance optimization on race morning are almost always a net loss.

---

Sources

1. ROXBASE analysis of 800,000+ race entries comparing Doubles finish times by documented joint training history. Teams with four or more weeks of shared preparation finish 7–12 minutes faster on average than teams without shared pre-race training, consistent across all finish-time bands. ↩

2. In HYROX^® Doubles, both partners complete the full 1 km run between each station together. Neither athlete skips a run segment. The station work alone alternates — one partner works the station while the other waits. This makes cumulative running load identical for both athletes over the course of the race. ↩

3. Asymmetric rest intervals — where one partner's station time is significantly shorter than the other's — create mismatched recovery windows at every handoff. The partner with longer rest periods arrives at their set over-recovered and tends to either go out too hard or waste the recovery advantage. Both outcomes reduce the performance efficiency of the team as a unit. ↩

4. ROXBASE pacing data from Doubles race entries shows that teams who go out more than 8% faster than target pace in km 1–2 have a 67% higher incidence of finish times exceeding target by more than 5 minutes, compared to teams who hold pace in the opening two runs. ↩

5. Post-session review protocols in structured doubles training programs correlate with faster improvement in transition times across a preparation block. Teams who log and review splits after each simulation session show an average transition improvement of 4.2 seconds per handoff over an 8-week block, compared to 1.8 seconds for teams who train without structured review. ↩