Predict your race time

Your estimated time over 5 km, 10 km, the half marathon and the marathon from your MAS. Type a goal to see the pace to hold and how hard it is.

Estimated time · 10K

36:38

Indicative estimate: it varies with training and endurance.

All estimates

Ventilatory thresholds

VT1

auto

km/h

% MAS

VT2

auto

km/h

% MAS

Heart-rate zones computed with

Start of each zone (% of MAS)

Start of each zone (% of max HR)

Share of MAS you can hold (colours and estimates)

1500 m

5 km

10 km

Half

Marathon

10 km, half and marathon follow your thresholds: VT2 + 2, VT2 − 3 and VT1 + 2 points.

Passing time = distance × pace: an exact calculation, not an estimate.
Estimated race pace: the share of MAS you can hold over the distance — about 100 % over 1500 m, 95 % over 5 km, 90 % over 10 km, 85 % over a half marathon, 80 % over a marathon (more below 1500 m). These are indicative averages that vary with training, endurance and profile. Over 10 km, a half and a marathon, these shares follow your VT2 and VT1.
VT1 and VT2 are estimated at about 74 % and 84 % of MAS when you do not type them; their real values are measured in an exercise test.
Heart-rate zones: in % of max HR, or with the Karvonen method (resting HR + % × (max HR − resting HR)). A measured max HR is better than a formula.
The colours compare the pace of the row with the maximum pace estimated for the distance.
Indicative tool: it replaces neither an exercise test nor the advice of a coach or a doctor.

The other tools, which reuse your profile, and our guides to choose your shoes.