Building in public · Los Angeles & Orange County

The work your
players do,
on a page you can send.

Slingshot is a wearable sensor pod for basketball. Session Load Score, sprint counts, jump metrics, and intensity zones: the analytics that pro systems lock behind team contracts and player minimums. We're building it for the trainers those platforms left out. We're on the second board design now, and we're in gyms while it gets built.

No software contract, no minimums. The pod is sold outright at $149. The academy signs a data processing agreement covering minors' data.

We drive to gyms across Los Angeles, Orange and San Diego counties. If you run sessions, we want to sit in on one and ask what belongs on the report. team@slingshot-sports.com

Why we're building this

Basketball
This season. One sport, done right
$149
Sold outright, no minimums
Any Gym
Works indoors, no WiFi needed
1
Session Load Score
The Problem

Assessed by hand every few months. Nothing in between.

Catapult Vector and STATSports serve pro and D1 programs. Catapult One reaches youth and high school, but basketball is not among its eleven supported sports. None of them were ever an option for a basketball trainer or an academy operator.

The trainers who do measure run assessments by hand every few months, and between assessments nothing reaches the parent. That gap is what we're building for.

Slingshot is built for the basketball programs Catapult was never going to serve.

The Product

One number.
Every player.
Every session.

The Session Load Score tells you how hard each athlete worked, built from sprint intensity, jump data, and movement zones. Here is what we're designing.

// What we're designing
01

Session Load Score

One composite number per player per session, built from sprint intensity, jump data, and movement zones. The single metric that tells you who worked and who didn't.

02

Weekly Parent Report

A clean weekly summary you can send home. Session Load trend, standout sessions, a coach's note.

03

Jump Count & Vertical Trend

Every jump counted, session by session. Vertical height is in validation, and no number goes on a report until it holds up on a real arm. It is the number recruits and parents both watch.

04

Sprint & Acceleration Count

Every explosive burst logged automatically. Tuned for basketball's 5-to-10 yard bursts, not soccer-style distance. Know which players are pushing and which ones are coasting.

05

Movement Intensity Zones

Green, yellow, red. A simple read on how each player spent the session, from the max-intensity grinders to the ones who barely broke a sweat.

06

Data Ownership

Export every metric, every session, every athlete to CSV in one click. Your data is yours. No lock-in, no paywall.

// WHAT COMES AFTER

What comes next.

The next version is in design. What goes in it gets decided by the sessions we sit in on. The trainers who host us get a direct line into that decision.

See the roadmap →
Next · First on-body sessions
Then · The public product
For Academy Operators & Program Directors

Built for the business
behind the training.

If you run a training facility, academy, or program, this makes your athletes' work visible to the people paying for it.

01

What goes home every week.

Every athlete's weekly report goes home. Parents see the work every week, not just at the end of the season.

02

A differentiator no one else ships.

Every academy in SoCal promises personalized training. None of them send week-over-week data home. The question we're asking trainers: what would actually be worth putting in front of a parent every week?

03

No enterprise procurement.

No software contract. No player minimums. No sports science consultant required. The academy signs a data processing agreement covering minors' data.

04

Built by people who came up through sports.

We're three founders putting our own savings into this, not a venture-backed team building from the outside. We know what a trainer running fifteen kids a day actually has time for, because we've been in those gyms. No enterprise bloat.

No software contract, no minimums. The pod is sold outright at $149. The academy signs a data processing agreement covering minors' data.

Session Load

One score,
tracked over time.

Slingshot fuses sprint intensity, jump events, and movement zones into one number from 0 to 100. The score tracks an athlete against their own history, not against the athlete next to them.

Marcus Bell · one athlete Sample data
Session 1Latest session
Intensity Zones

Show parents exactly what their kid did.

Approximate intensity zone tracking from the upper-arm sensor. Directional signal, not clinical measurement, paired with Session Load to translate raw effort into something a parent understands at a glance.

Player 07 · 90 min session Directional
Rest
11 min
Light
22 min
Moderate
34 min
Hard
16 min
Max
7 min
How this works

Built for the academies
the big systems skip.

Catapult and STATSports sell to pro and D1 programs, on contracts and player minimums. Slingshot is for the private academy neither of them will serve. The pod is sold outright at $149. When there is a board to put in a gym, the trainers we have sat with hear first.

Invite us to a session →
Build Log

Building in public.
From a dorm room.

We're three founders building in the open. The decisions, the dead ends, and what the data actually says.

THE LIST

GET THE FIRST REAL REPORT.

We're in gyms across Los Angeles, Orange and San Diego counties asking trainers what belongs on the report. Leave your email and you get the first one off a real session, the week it exists. Paid private basketball academies and skills trainers with budget authority.

No software contract, no minimums. The pod is sold outright at $149. The academy signs a data processing agreement covering minors' data.

We'll reply with two questions, program type and number of athletes. No spam.

Or just email us: team@slingshot-sports.com