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Coach Gareth
Two endurance athletes on a training run
Coaching

World-class coaching for endurance athletes of all abilities

Coach and sports scientist — the “Lactate Guru”. Coach to world & national champions · 30+ years.

  • Triathlon
    including Ironman
  • Running
    marathon and ultra
  • Cycling
    road, gravel and track
  • Longevity
    training to stay strong for decades

Sport-specific monthly coaching & consulting

Gold

$300
per month
  • 360° custom program
  • Strength, mobility & core
  • Bi-weekly data review
  • Text & email support
  • Monthly call review
Enquire

Platinum

$600
per month
  • 360° custom program
  • Strength, mobility & core
  • Weekly data review
  • Text, email & phone support
  • Bi-weekly call review
Enquire

VIP

$900
per month
  • 360° custom program
  • Strength, mobility & core
  • Twice-weekly data review
  • Text, email & phone support
  • Weekly call review
  • A one-to-one workout session
  • Custom food & fuel planning
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Day to day

How coaching works

Every workout is uploaded to TrainingPeaks and can be pushed straight to your watch for in-workout guidance. After each session the data comes back automatically, along with sleep and health data from your wearable, and Gareth reviews it at the frequency your tier sets.

You can leave notes on energy, stress or travel as you go. Contact happens by call, video, text and email, again depending on tier. Every athlete trains with a heart-rate monitor and keeps a daily training journal.

Gareth Thomas coaching two swimmers on the pool deckAn endurance athlete at the finish of a triathlon
The lab

Plans built from lab data

Coaching starts from numbers measured in the lab, not a formula. Most people begin with a test at ECLYPSE Fitness Lab, then retest every9–12 weeks so the work stays on the physiology you actually have.

Questions

Before you
enquire

Still not sure? Call (858) 361-4733. There's no sales pitch — if a test isn't worth it for you, he'll say so.

Coaching
How does coaching work day to day?

Every workout is uploaded to TrainingPeaks and can be pushed straight to your watch for in-workout guidance. Your data uploads back automatically after each session, along with sleep and health data from your wearable, and Gareth reviews it at the frequency your tier sets. You can leave notes on energy, stress or travel as you go. Contact happens by call, video, text and email, again depending on tier. Every athlete trains with a heart-rate monitor and keeps a daily training journal.

Do I need to live in Los Angeles, or even the USA, to be coached?

No. Gareth coaches athletes all over the world, many of whom travel constantly. Most come to the lab in Santa Monica for their initial testing, and where that is not possible he arranges testing with a provider local to you so the programme still starts from real data.

What equipment do I need?

The essentials are the basic kit for your sport plus a heart-rate monitor with a chest strap. Ideally you would also have a sleep tracker such as an OURA ring or WHOOP, a power meter if you ride, an indoor trainer, and access to a gym, a track or treadmill, and regular massage or chiropractic care. A budget for fuel and supplements matters too.

I am never going to win anything, but I want to be my best. Can I still apply?

Yes. Gareth works with driven people who want to reach their true potential, whatever level that starts from. Wanting to be excellent matters more than what you can currently do.

I hate racing but I want to train properly. Is that OK?

Yes. Training seriously without racing is a superb way to stay fit and in prime condition, and it is how Gareth lives himself. Plenty of the athletes he coaches never pin on a number.

My time is limited. Can I still get somewhere on an hour a day?

Yes. You will struggle with the longest races on that budget, and Gareth will tell you so honestly. But an hour a day, programmed properly around your actual life, goes a very long way — and building the plan around the time you genuinely have is the whole point.

Enquire

Start a plan

Call or email. There is no online checkout — you talk to Gareth first, and he will tell you which tier actually fits.

1736 Ashland Avenue, Santa Monica, CA 90405