EnduranceIQ
A smart second opinion on your marathon training.
EnduranceIQ reads your watch data and tells you what you're doing wrong, why it matters, and what to change.
Most self-coached marathon runners train too hard on their easy days and don't know it.
Wearables show the data. They don't interpret it.
Real example: 8 consecutive runs across 2 weeks averaging 154–176 bpm, with zero Zone 2 running. The runner didn't notice until the analysis surfaced it. Seiler (2010) shows 80% easy training produces the best aerobic adaptations. Most recreational runners invert this ratio.
What you'll get every week
Intensity check
Compare your week to the 80/20 research target. See exactly how much of your training was easy, moderate, and hard — and why that matters.
Training load
Plain-language status: Normal, Elevated, Spike, Low. With a 4-week baseline so you know if you're building too fast.
Strength menu
One focused session per week, tied to what your running data shows. Scheduling included — no guessing when to lift.
Every recommendation cites the research behind it.
Intensity distribution targets come from polarised training research. Training load thresholds follow acute/chronic workload methodology. Strength recommendations cite running economy and injury prevention literature. Nothing is made up.
All citations link to the published paper. When a DOI resolves to a 404, we replace it. When evidence is moderate rather than strong, we say so.
Connect your Strava, get your first report in 2 minutes.
Free to use. No credit card required.
Get started