Phase 04 of 5 · Roughly 35–70 m

Maximum velocity sprinting mechanics

Maximum velocity is the phase of a sprint in which the athlete reaches and briefly holds their highest speed, running upright with short ground contacts, long flight times, and the foot landing close to beneath the hips.

The goal of this phase: Apply large force in a very short contact, and let the leg recover in front rather than behind.

What good looks like

Trunk close to upright, around 5–10° from vertical.
Ground contact around 0.08–0.10 s with flight time exceeding it.
Touchdown roughly 0.10–0.20 m ahead of the centre of mass. Close to beneath the hips.
A shin close to vertical at touchdown, and a heel recovering near the hip rather than swinging wide behind.
Hip extension reaching 165–180° at toe-off.

Common faults in the maximum velocity3 faults

Overstriding

What you see: Foot landing well ahead of the hips, shin angled backwards, contact times long for the speed.
Where to start: Front-side mechanics. Treat the reach as a symptom of a slow, low leg recovery rather than as a stride-length problem.

Back-side dominance

What you see: Heel kicking high behind while the front thigh stays low; a "cycling" look.
Where to start: A-series drills and wall switches, cueing the heel under the hip.

Collapsing at contact

What you see: Visible sink in hip height during stance; contact times rising through the run.
Where to start: Reactive strength. Pogos, hurdle hops, short-contact plyometrics with a rigid ankle.

Measurements that matter here

All eleven are listed on what we measure.

Questions2

At what point in a 100m do sprinters reach top speed?

Elite sprinters typically reach maximum velocity somewhere between 50 and 60 metres and hold it only briefly. Less-trained athletes reach their top speed earlier, often by 30 to 40 metres, because they have less capacity to keep accelerating. Reaching top speed sooner is a limitation, not an advantage.

What are the key mechanics at maximum velocity?

An upright trunk around 5 to 10 degrees from vertical, ground contact of roughly 0.08 to 0.10 seconds, flight time exceeding contact time, the foot landing close to beneath the hips, a near-vertical shin at touchdown, and hip extension reaching 165 to 180 degrees at toe-off. The defining feature is that the action is reactive rather than propulsive.