HYROX + Running Coaching
HYROX Coaching. Community. Elite Performance.
Proven HYROX and running training from a HYROX Elite 15 Athlete. Trusted by 75+ athletes across all levels, from first-timers to podium contenders.

How You Can Work With Me
Choose your lane, then scale as your fitness and goals evolve.
Threshold Lab App Membership
Structured training plans and community resources for HYROX athletes and runners who want a clear system with built-in progression and community support
- 16-week run plans with low, medium, and high volume options
- 12-week HYROX plans for beginner and intermediate athletes
- Compromised running workouts, fueling guidance, and race resources
- HYROX affiliated with early US race access for members
- Monthly office hours + community forum
1:1 Coaching
Personalized programming and direct access to me for athletes chasing meaningful performance jumps.
- Individual run + HYROX periodization mapped to your calendar
- Weekly adjustments based on recovery, travel, and training response
- Direct communication and performance reviews to ensure long-term progression
- Ideal for HYROX athletes targeting a specific performance goal or runners chasing a big PR
Head Coach & Founder
Stephen Pelkofer
I'm a full-time HYROX coach, athlete, and community builder. The same principles and progressions that got me from a 1:07:06 HYROX debut to Elite 15 status are what I use for Threshold Lab athletes and programs.
- 2026 HYROX Doubles Elite 15 Athlete
- 2026 American Regional Elite 15 Solo Athlete
- 57:43 Men's Pro PR
- 49:34 Men's Pro Doubles PR
- 5x HYROX World Championships Qualifier (3x Pro + 2x Pro Doubles)

Athlete Results
Real client outcomes

Cailyn & Des
3:15 PR
1:1 Coaching
Des & Cailyn took 3:15 off of their HYROX doubles times after following 10 weeks of 1:1 coaching specifically for doubles prep.

Sara
3:13 faster than previous doubles PR
1:1 Coaching
Sara is an OG Threshold Lab client who has been with us since the very beginning. After a full off-season plan and HYROX specific block, she beat her previous doubles PR in a solo race by over 3 minutes.

Gabe
15:28 PR
16-Week Run Program
Gabe took 15+ minutes off of his HYROX open time after following the 16-week run program combined on top of his group fitness class routine.

Mike
8:00 PR
1:1 Coaching
Mike took 8:00 minutes off of his HYROX open time after 12 weeks of 1:1 coaching focused on run performance and HYROX-specific conditioning.

Cory
4:57 PR
16-Week Run Program
Cory set a 4:57 PR in his HYROX open time after following the 16-week run program.

Katie
4:34 PR
16-Week Run Program
Katie set a 4:34 PR in her HYROX open time after following the 16-week run program on top of her group fitness classes.

Moe
3:48 PR
1:1 Coaching
Moe took 3:48 off of his HYROX open time after following 10 weeks of 1:1 coaching focused on run performance and HYROX-specific conditioning.