4DTrack captures athlete movement from synchronized multiple angles and builds a motion history that helps coaches measure, compare, and improve performance over time.
Built on the multi-camera technology 4DReplay has run in live broadcast for over a decade.
The 4DReplay heritage — the foundation 4DTrack stands on
"Exit velocity was 94 mph."
The number. Precise, and already well served.
"Here is the hip rotation, weight transfer and bat path that produced it — and how each one changed across the season."
The movement, from every angle, across every session.
We don't replace TrackMan or Rapsodo — we add deeper analysis for the facilities that already run them. 4DTrack explains the numbers those systems produce.
Cameras are the capture layer, not the product. Everything downstream is what a coach actually uses.
Multiple cameras, frame-synchronized, recording every rep automatically.
Athlete identification and body tracking across every session.
Joint movement, timing, position — plus data from sensors you already run.
Technique analysis and side-by-side comparison, assisted but coach-led.
Session to session, month to month, the change is on record — and the next session starts the loop again.
As the record builds, the direction becomes clear — and tracking keeps it on course.
Each session closes with a single score, the change against the previous session, and one sentence a coach would actually say. Raw numbers stay one click below — the list view never makes you do the math.
"Hip rotation is firing earlier. Next session starts with lower-half drills."
"Chasing velocity rushed the delivery. Next two sessions: radar gun covered, command only."
Goals live next to the data — progress bars in state colors, judgment at a glance.
Redesigned around the athlete. Taking its cue from the American baseball card, every player gets a card of their own that shows what they can do — their best shot of the day and their best number. From the card to the session, the video, the one frame that proves it, the views that explain it, and the AI report that reads it all: every level links to the next.
The athlete is the main character, not the video list. Each card carries the player's best shot of the day and the one number that sums them up — max speed for a pitcher, max distance for a hitter — with group, throwing or batting hand, latest session date and session count alongside.









Open a card and the athlete's banner leads: name, best number, group and hand, sessions and videos. Below, every session is one row — the photo from that day, date and time, pitch count, max, average and minimum speed, strike rate and a nine-zone map.
One session, every video. The header carries that day's photo and the AI Session Report; below, the videos keep their pitch order. The best ones are marked where they stand — never pulled to the top — so the session reads the way it was coached.

#9
#8
#7
#6
#5
#4MAX
#3
#2
#1Six synchronized cameras split the work. Four watch the body, so the coach can analyze the motion; two look down the line of the pitch, so the result is measured, not guessed. It is the multi-angle player our broadcast clients have used for a decade — rotate, slow down, snap a frame, draw — now keeping both in the athlete's record.
Every session also comes back as two films and a trace. The result cameras play every pitch back to back at real speed — from behind the pitcher and from behind the catcher — and leave each arrival on the nine-zone. The motion trail keeps only what moved during the delivery, so the shape of the motion can be read at a glance.
Measurements alone don't coach. Every session comes with an AI report that connects the motion to the result — and from the second session on, an overall report shows where the athlete is heading. Web view, PDF with a QR code back to the live report, or a link to share.
Six chapters for every session: the record in 3D with the pitcher's and catcher's view and the motion trail; a 0–100 score on five axes with the change from last time; velocity, command and release angle; the motion at leg lift, foot plant and release; a multi-angle review; and AI coaching with correction points and next-session drills.
↓ Sample AI Session Report (PDF, 10 pages)From the second session on, every session of the athlete in one report: the score trend and a skill radar of all sessions, personal bests and growth from the first session to the latest, velocity and strike-rate trends, the first and latest best clip side by side, and the next priorities.
↓ Sample AI Overall Report (PDF, 6 pages)Player cards and names are AI-generated. The session videos (L3–L5) and the AI report samples are real 4DTrack output from adult members, shown with permission and with names removed.
The structure — athlete, discipline, session, rep — is sport-agnostic. Moving to a new sport swaps the metric dictionary, not the product.
| Sport | A rep is… | Disciplines per athlete | Headline metrics |
|---|---|---|---|
| Baseball | one swing / one pitch | hitting · pitching | distance, bat speed / velocity, strike% |
| Gymnastics | one routine attempt | vault · bars · beam · floor | execution & difficulty |
| Golf | one shot | swing | carry distance, club speed |
| Snowboard / Ski | one run, one trick | halfpipe · slopestyle | air, rotation, landing |
| Team drills | one stop, one drill | crew positions | drill time by position |
Technique drives the result.
The same movement is repeated in training.
One camera angle is not enough to judge it.
Comparing past to present is how coaching happens.
Every tile opens a live multi-angle sample site — the same players and clips our live deployments use. The first click asks you to sign in (free) and brings you straight back.
Interactive replays and AI session reports for academy players. The batting cage and the pitching field run as separate programs under one academy.
Both open on the player cards shown above, and recorded sessions can be watched without signing in.

Each sport tile opens its own live site at <sport>.4dtrack.com.
A professional system, used by coaches, athletes, performance directors and sports scientists — and built for the level of professional teams and Olympic athletes.
Baseball hitting and pitching are where we run today, and the structure — athlete, discipline, session, rep — carries to any sport. Wherever technique decides the outcome and one camera angle can't settle the question, 4DTrack fits: gymnastics, golf, snowboard, figure skating, diving, and more.
No — and it isn't meant to. Result trackers tell you the number; 4DTrack shows you the movement that produced it, from every angle, across every session. Facilities already running result trackers are our best fit.
No. The cameras record every rep automatically, and every session is filed under the same athlete from the first day. The coach's job stays coaching — the record keeps itself.
Exactly what the coach shares: a read-only link with the growth curve, highlight clips, and the coach's note. No login, no access to other athletes, built for a phone.
A 30-minute walkthrough with our team in San Mateo or online. Tell us the sport and the facility — we'll map camera placement to your actual training space and show the product on movement like yours, not a canned reel.
Tell us the sport and the facility. We'll show you how 4DTrack captures, tracks, and compares — using movement like yours, not a canned reel.