T&F AI logo Track & Field AI Track & Field AI
[01]Phases we analyze

Every phase of relays, broken out

Incoming drive

Incoming runner maintaining top speed into the zone.

Go mark

Outgoing runner takeoff timing off the go mark.

Acceleration

Outgoing runner's first 10 meters before the exchange.

Exchange

Hand alignment, baton security, call-and-respond timing.

Drive out

Outgoing runner maintaining speed post-exchange.

Why it's different

AI that actually understands relays

Generic video tools look at "a person moving." We built a model specifically around relays. the phases, the mechanics, and the coaching language real relays coaches use.

Upload the rep. We extract the critical frames. You get a breakdown in plain English with priority tags. critical, worth working on, fine.

  • Event-specific phase detection
  • Priority-tagged coaching notes (critical / important / minor)
  • Cause-and-effect frame markers
  • Follow-up AI coach chat on every analysis
4x100 relay baton exchange captured mid-handoff, Track & Field AI analysis
Relays · Sample analysis “Outgoing runner left the go mark 0.12s early, caused 0.5m of deceleration waiting for the baton.”
[03]Common relay mistakes

The three errors the AI flags most often

These are the technique patterns we see over and over again across relays athletes. Each one has a specific look on video and a specific fix.

01
Fault Pattern · 01

Go-mark timing off

Observed on video

Outgoing runner leaves too early or too late, forcing deceleration or a rushed pass inside the zone.

Prescribed fix

Controlled-speed exchange reps with a measured and re-measured go-mark at practice pace vs race pace.

02
Fault Pattern · 02

Hand position drop on reception

Observed on video

Outgoing runner's receiving hand drops or moves during the call, creating a drop risk on hand-off.

Prescribed fix

Fixed-target hand drills, focus on arm staying locked until baton hits the palm.

03
Fault Pattern · 03

Drifting wide through the exchange

Observed on video

Runners drift toward the outside of the lane during the handoff, risking a lane violation in a meet.

Prescribed fix

Lane-line awareness drills, use a short blue line as a cue during practice exchanges.

High school girls relay team running the 4x100 at a track meet
Real athletes

Used by relays athletes at every level

From freshman relays to D1 rosters, athletes upload phone video and get the same frame-by-frame coaching read. The AI doesn't grade you. it explains what it sees, in the vocabulary a real relays coach would use.

  • Every level, freshman to D1
  • Same AI model, same vocabulary
  • Practice reps, meet reps, warm-ups. all fair game
  • Works with any phone, any angle
[10]Common questions

Relays FAQ

Can I analyze both 4x100 and 4x400 exchanges?
Yes. The relay model handles both blind (4x100 acceleration zone) and visual (4x400 slower exchange) handoffs.
Does it check my go-mark timing?
Yes. The AI flags late or early go-mark departures frame by frame.
What's the ideal go-mark distance for a 4x100?
Depends on both runners' speeds, but most HS/college teams use 20-25 feet. The analysis helps you tune it based on what happened on actual exchange reps, not generic advice.
Can I film just one exchange at a time?
Yes. Single-exchange clips are the most useful, focused feedback on one handoff at a time.
Does it catch passing violations?
The AI flags when the baton leaves the acceleration/exchange zone based on visible lane markings, though meet-official calls are always authoritative.
[INDEX]More ways to dial in your relays

The full relays index

A directory of every relays page on the site, from broad analysis tools to specific phase deep-dives. Each entry points to a focused write-up.

Ready when you are

Ready to analyze your relays?

Download the app. Film a rep. See what the AI sees. No card, no account, one free analysis.

60s
Time per analysis
Phases analyzed5 for relays
Coaching languagePlain English
Free first analysisNo card needed