We know the future.
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5 of 10 selected
Elevation × Effective Temperature = your real finish time
Your ideal marathon time
4:00:00
Mode
We'll estimate your marathon potential from your recent runs. ✓ Strava connected — your time is set from your runs.
: :
Your finish time on a pancake-flat marathon (Berlin, Chicago, Valencia). We'll scale the elevation penalty to your fitness.
:
Your sustainable pace on a flat road. 5:00/km ≈ a 3:31 marathon; 6:00/km ≈ 4:13.
Connect Strava and we'll analyze your recent runs to estimate a realistic marathon time — no guessing. Your runs are processed privately and not stored.

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OR DROP YOUR OWN GPX FILE — 🔒 premium feature
▸ HOVER THE CHART TO COMPARE ELEVATIONS AT THE SAME KM
▸ MARATHONS ON CHART · DRAG TO REORDER · CLICK TO TOGGLE ·
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Your real run time.

You · 3:45:00 flat
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Want more marathons in the catalogue, or a personal pace calculation for your next race? Send us a message — we'll get back.
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