Ride simulation
Predict your time over any Zwift route or segment — a constant-power effort from a standing start, using Zwift's recovered ride physics. Your speed is traced over the elevation profile; hover for distance, gradient and speed.
Config
Elevation & speed
constant
optimal
<3%
3–6
6–9
9–12
>12
Pick a route to simulate…
Segment splits
your time across each timed segment on this ride — click one to simulate it on its own
Optimal pacing — power by gradient
The power strategy that's fastest for the same effort (Normalized Power),
versus holding constant watts. Surge the climbs, ease the descents.
Pick a route to see the optimal strategy…