HYROX doubles training is not a different sport from solo training. It is your normal program plus a handful of adjustments that only make sense once another athlete is standing next to you on race day: running speeds that have to match, thresholds that have to line up, and sessions that are genuinely better done together than apart.
This guide is not a full weekly plan. It is the doubles-specific layer: what to change, what to test with your partner, and what to leave alone.
This is a layer, not a new program
James Kelly, who coaches doubles athletes on the Hybrid Coaching Podcast, put it plainly when a listener asked how different doubles training actually is from solo: “It’s not necessarily about the difference of the actual workout.” His co-host Anthony Peressini agreed, pointing out that he already programs threshold work as full rest between reps, not a jog-through float, so an athlete he’s already coaching for singles is rehearsing the stop-start rhythm doubles racing demands. The training barely changes. What changes is who you do some of it with, and how closely your effort has to match theirs.
That matching problem is not optional once you are actually racing. The HYROX doubles rulebook requires both partners to run the full 1,000 meters between every station together. Drift ahead of your partner and the team picks up a penalty. Rack up more than three of those penalties and you are marked Out Of Competition with no ranking at all. That is the real reason matched running speed matters in doubles: not as coaching advice, but as a rule with a clock attached to it.
So the doubles-specific work below sorts into three buckets: sessions worth doing together because they train the handoff itself (simulations, the pacing check), sessions worth calibrating individually even when you train side by side (thresholds, checked against each other), and sessions that barely change from your existing solo program at all (your aerobic base).
Compromised running: running on tired legs, on purpose
The single most consistent theme across the elite doubles athletes interviewed for this guide is compromised running: running immediately into or out of a loaded station, rather than always running fresh. It shows up in different forms for different pairs, but the pattern holds.
Gabriella Moriarty, who races Elite 15 doubles with Zara Piergianni, describes the idea directly: some athletes are simply better suited to doubles because they can push close to their ceiling in short bursts and recover fast during their partner’s turn on a station. As an example of training that quality, she describes a session of 500 meters at roughly 3:25 to 3:30 per kilometer straight into two lengths of sled push, 30 seconds of rest, then repeated.
Tom Franssens and Pieter Maes, who race elite doubles together, build compromised running into a near-weekly full simulation session. They describe deliberately extending the running portions some weeks, to as much as a kilometer and a half between stations, rather than a short recovery jog.
Mixed doubles age-group world champions Meg and Will Martin, a married pair, show two different angles on it. Meg says they underused loaded compromised running before their age-group title and plan to add “heavy sled pushes straight into a run” and the same with sled pulls in their next block. Will separately describes his own current track sessions, which already combine lunges into working sets that finish with burpees and air squats, a different shape again, on the same underlying idea.
One caveat is worth keeping. Moriarty, who also coaches, is explicit that she withholds compromised running from clients whose straight running speed is not there yet: “there is no point in you doing compromised running when your actual running isn’t good enough yet,” she says, comparing it to “missing a brick out of a house.” Build your base pace first. Layer compromised running on top of it once that pace is real, not before.
Treat all of this as something to test with your partner, not a prescription. The distance, the load, and the rest all vary by pair. What is consistent is the shape: running does not stop being hard just because a station ended.
Double-threshold days: a hard morning run, a station session in the afternoon
A second pattern shows up specifically among athletes preparing for a doubles major: pairing a hard threshold or VO2 max run in the morning with a full station session later the same day.
Vicky MacIntosh, who qualified for Elite 15 doubles with her partner Danél Louw, structures her week around what she calls “double days.” Monday and Wednesday mornings are tempo, threshold, or VO2 max running; Monday and Wednesday afternoons are a full station session. Friday adds a third quality day, a long Zone 2 run in the morning. Her training shifts to be “more anaerobic with a bit of rest in between” specifically in the block leading into a doubles major, not as her year-round default.
That structure is not unique to her. On the Hybrid Coaching Podcast, Anthony Peressini describes running a double-threshold base block year-round as his own coaching style, built in after an initial aerobic-base phase and carried through most of a season before a final taper. Two coaches, working independently, landed on the same basic shape.
Present this as what these athletes do, not as something every doubles pair needs. If you are already running a threshold session and a station session in the same week, the doubles-specific move is experimenting with stacking them on the same day rather than spreading them apart, and seeing whether that changes how the afternoon session actually feels.
Two kinds of simulation, and they are not the same session
“Simulation” gets used loosely in doubles training, and it is worth separating what it actually means before you build one into your week. Two distinct types show up in how elite pairs train, and neither of them is the community HYROX Sim (the practice-format race a local gym runs on its own calendar; see what a HYROX Sim actually is if that is the one you are thinking of). Both of the types below are sessions a pair runs itself, in training.
The first is a lower-intensity conditioning simulation. Franssens and Maes run something close to this almost every week: the eight stations at full effort, but the running legs deliberately held to Zone 2, occasionally Zone 3. The point is not race pace, it is rehearsing the compromised-running pattern and the handoffs under real fatigue, without the cost of an all-out effort every time.
The second is the race-effort split rehearsal already covered in our guide to HYROX doubles station splits: the same eight stations and runs, at something close to actual race intensity, used to test and lock in who takes what.
These are not interchangeable, and running only one of them leaves a gap. The conditioning version builds the movement pattern without burning out your week. The race-effort version tells you whether your planned split actually holds up under real fatigue. Neither one has to happen weekly. Jess Pettrow, an Elite 15 athlete, says in her general training she only runs a race-readiness simulation “as we get closer” to a target race, not on a fixed weekly cadence (she doesn’t frame this as a doubles-specific routine), and Will Martin says explicitly that he and Meg do not rely on a simulation every few weeks, using one only at a baseline check or partway through a season. Treat frequency as a choice to make with your partner, not a rule to copy.
A partner pacing check, adapted from a solo method
Vivian Tafuto, who has set doubles world records with Lauren Weeks, describes a training staple from her own program: a threshold run followed immediately by one station, usually burpee broad jumps, using her performance on that closing station as a direct read on whether she paced the threshold effort correctly. Push the run too hard and the burpees fall apart. Pace it right and the station stays steady.
Tafuto describes this as a staple of her own training group, not something she’s described running jointly with Lauren. It is a useful idea to adapt into a doubles version, not to copy directly: run a threshold effort together, then move straight into a short, shared set of burpee broad jumps, and compare how each of you comes out the other side. A partner who blows up on the station probably ran the threshold too hard. It is a cheap, repeatable way to check whether your two paces are actually matched under fatigue, not just on paper.
What elite volume actually looks like (read this as an outlier, not a target)
One number is worth including here, clearly flagged as an outlier rather than something to aim for. Gabriella Moriarty, racing Elite 15 doubles, puts her own training at roughly 16 to 18 hours a week across two to three sessions a day plus one rest day, with running volume around 50 to 55 kilometers a week. Her threshold pace sits around 3:40 to 3:50 per kilometer, her track sessions run closer to 3:20 per kilometer (sometimes 2:55 to 3:05 for 400-meter reps), with 90 seconds to 2 minutes of rest between reps.
That is an Elite 15 athlete’s week, not a benchmark for a first doubles race or even a competitive amateur one. The reason it is worth knowing is scale: it shows how far training volume and pace can stretch at the top of the sport, and how little of that gap is about doing something exotic. It is mostly running, done often, at paces that get progressively faster as the season builds.
See what your partner is actually doing
Doubles partners usually train apart most of the week. The double-threshold structure above, the compromised running, even the pacing check, all of it is easier to coordinate when you can actually see what your partner has been doing, not just ask and hope the answer is accurate.
MatchRox’s Partner Training Log is built for exactly that. It is opt-in on both sides: each athlete turns sharing on for themselves, and once your partner has, you see a summary of their workouts by category, running, stations, rowing, strength, cycling, and recovery, over a range you can adjust, without either of you texting a screenshot of your training app. It syncs workout type, date, duration, distance, pace, and calories. GPS routes and sleep data stay on the athlete’s own device and never cross to a partner. It is visibility, not a shared plan and not an alert system: no nagging, no missed-session flags, just a clearer picture of whether your double-threshold days actually line up. For more on how that sharing works and what it deliberately doesn’t do, see our guide to training visibility between HYROX doubles partners.
If you are still deciding whether doubles training is worth the coordination it takes, our guide to HYROX doubles vs singles walks through what actually changes when you add a partner. Once your splits are set, HYROX doubles station splits covers who takes what, and our HYROX doubles pacing guide covers running the actual race. When race week arrives, how to taper for HYROX doubles covers the two-athlete version of cutting volume without losing sync.
Frequently asked questions
Is HYROX doubles training different from solo training?
Not as much as most athletes expect. Coaches who work with both describe the week-to-week structure as largely the same: an aerobic base, threshold work, and station-specific movement. What changes is doing more of it alongside your actual partner, so your paces and thresholds are tested against each other rather than assumed.
How often should HYROX doubles partners run a simulation together?
There is no fixed cadence that fits every pair. Some elite teams run a lower-intensity conditioning simulation close to weekly; others only simulate as a target race approaches or to check progress partway through a season. Decide the frequency with your partner based on how your training block is going, not a rule copied from someone else’s program.
What is compromised running, and do I need to train it?
It means running immediately into or out of a loaded station instead of always running on fresh legs, since that is what a doubles station-to-run transition actually feels like on race day. It is worth adding once your straight running speed is solid. Layering it in before that point tends to reinforce a slow running pace rather than fix it.
Can HYROX doubles partners train completely separately and still race well together?
Some elements travel fine done apart, your individual aerobic base and most solo running sessions barely change for doubles. Others do not: a shared simulation, a joint pacing check, and rehearsed handoffs are hard to fake on race day if you have never actually run them together. Aim for at least one shared session most weeks, even if the rest of your training happens apart.
Does double-threshold training mean two hard sessions every day?
No. It refers to pairing one hard running session with one station session on the same day, a few days a week, not doubling every day’s volume. Some athletes run it three days a week leading into a major; others use a year-round version at lower intensity. Match it to where you are in your own training block, and to what your partner can actually hold that same day.
Ready to train toward a real race with a real partner. MatchRox gives you a Partner Training Log once you’re partners, with each athlete turning sharing on for themselves, so you can see how your sessions actually line up before race day. The beta is open now. Join the beta.
