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Members only
Members only
Inside the Lab · with Stephen Pelkofer
See the work.
Understand the why.
A race result tells you what happened. Inside the Lab shows you how I got there: the training, the data, the decisions, and what I change next.
Stephen PelkoferHYROX coach & Elite 15 athlete
Follow the ongoing process
Inside the Lab membership
$70 / month
Billed monthly. Cancel future renewals anytime.
- Training from 30 days before you join, plus new workouts as they land
- Full training overview and performance charts
- Every Lab Note, past and future
- Race schedule, strategy, and recaps
Create an account, then complete secure checkout.
The training app and older training blocks are sold separately.
Prefer a one-time purchase?
Buy the training history. Keep it for good.
Study the blocks behind the results at your own pace. Get every currently available training block in one purchase, with no monthly subscription required.
- All current blocks, completed and in progress
- Workout library and performance charts for those dates
- Every Lab Note, past and future
The complete current collection
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One payment. Yours to keep.
View bundle & purchase optionsFuture blocks are sold separately or included with an active membership. Individual blocks are also available for $100 per block.
More context than a social post
The training is only half the story.
01
The sessions
Look beyond a workout screenshot. Open the plan, fueling, training load, and notes to see the full session in context.
02
The decisions
Read the Lab Notes behind my training. Understand the reasoning, race strategy, and adjustments alongside the data.
03
What happens next
Follow the build into a race and the changes after it. New workouts and notes keep the story moving as the season unfolds.
Inside the Lab
See a week from the inside.
Open the highlighted sessions to see the exact plan, fueling, training load, and notes behind the work. This sample shows Stephen’s training, rather than a program prescribed for you.
Training schedule
Jul 13 - Jul 19, 2026 · Base Build + Pre-Season – 13wk
2 workouts unlocked. Select a highlighted card.
Swipe or scroll to explore the full week.
Before you join
A few things to know.
Is this a training plan for me?
Inside the Lab is access to Stephen’s training and analysis. If you want a structured program to follow for your own goals, choose the $40/month Threshold Lab App membership. The two products are purchased separately.
What can I see when I join?
Your membership starts with training data from the 30 days before you sign up. New workouts are included as they land while you remain subscribed, alongside performance charts and every Lab Note, past and future.
Do I need to buy older blocks?
No. The membership stands on its own. Historical blocks are optional purchases if you want to study training outside your membership access window.
Can I cancel?
Yes. Cancel future renewals from your billing settings. Your membership access continues through the end of the current billing period.
Does this include personal coaching or the app?
No. Inside the Lab, the Threshold Lab App, and 1:1 coaching are separate offerings. Choose Inside the Lab to study Stephen’s process; choose the app for structured programs and community.
Follow the next chapter.
The sessions. The thinking. The changes along the way.