Ghost BSBL for Shortstops
The best middle infielders share one thing: elite hip-shoulder separation and a tight kinematic sequence. Ghost measures both in 3D from your phone and grades them against pro-level targets.
Shortstops who drive the ball gap-to-gap consistently build 40–50° of hip-shoulder separation and fire hips before shoulders every time. Most don't know their number. Ghost does.
What Ghost watches
on your film.
Gap power at shortstop comes from rotation, not arm strength. Hip-shoulder separation and firing order determine how much force reaches the barrel.
Coil angle at stride
Measured in the horizontal 3D plane using world coordinates. Rotational power stored before hip release.
Hip → Shoulder → Hands
Firing order from 3D angular velocity. A $3,000 motion-capture test — run from one phone video.
Foot plant to contact
Time from lead foot landing to contact. Too early or too late kills barrel position.
Complete mechanics
every swing.
Ghost grades all 8 pillars on every submission — not just the spotlight ones. Every angle, every phase, ranked worst fix first.
Phone to full breakdown
in 24 hours.
Film it
Side angle. Full body in frame — head to feet. 10–30 seconds. Phone works fine. We give you exact framing instructions when you sign up.
Ghost analyzes
33 joints tracked in 3D. All 8 pillars graded against pro-level targets. Annotated slow-motion video shows your skeleton vs. the ideal baseline.
Coach breaks it down
Kaden or Kevin reviews the Ghost AI report on camera and coaches you through every adjustment. Back in 24 hours.
Ghost finds it.
They tell you how to fix it.
Buy a breakdown and Kevin or Kaden watches your specific film, records a personal voiceover, and sends it back within 24 hours.
Pittsburgh Pirates · 1996–1998
Reviews the Ghost AI report and coaches you through the full breakdown. Played in the Show — he knows what the data needs to look like to get there.
Seattle Mariners · 3rd Round Pick
Uses the Ghost AI breakdown as the roadmap and coaches you through every adjustment. No generic cues — your film, your mechanics, your fix.
One film.
Real feedback.
Kevin or Kaden watches your specific film and records a personal voiceover — what they see, what's wrong, one fix. One-time purchase. No subscription required.
- Full Ghost AI biomechanics report included
- Kevin watches your specific film
- Personal voiceover — not generic cues
- One specific fix from 14 years of pro ball
- Pittsburgh Pirates · ex-MLB infielder
- 24-hour turnaround guaranteed
- Full Ghost AI biomechanics report included
- Kaden watches your specific film
- Personal voiceover on your swing
- One fix — from someone who got drafted
- 3rd round pick · #78 overall · Mariners 2B of Year 2022
- 24-hour turnaround guaranteed
Answered.
What swing mechanics matter most for a shortstop?
Hip-shoulder separation and kinematic sequence are the biggest differentiators. Middle infielders who drive the ball consistently build 40–50° of hip-shoulder separation and fire hips before shoulders every time. Ghost measures both from a single phone video.
What do I need to film my swing?
Any smartphone. Side angle, full body in frame — head to feet. 10–30 seconds. Slow-motion helps but isn't required. Ghost gives you exact framing instructions when you sign up.
What benchmark does Ghost use?
Every pillar is graded against pro-level mechanics — the same standard scouts and coaches use to evaluate hitters. You see exactly where your gap is and which fix closes it the most. The goal isn't to shame your numbers, it's to show you the shortest path to the next level.
Who reviews my film on a breakdown?
Kaden Polcovich — 3rd round pick, #78 overall, Seattle Mariners 2B of the Year 2022 — or Kevin Polcovich — Pittsburgh Pirates infielder, 14 years in pro ball. Your film, on camera, fully broken down within 24 hours.
Is there a subscription or contract?
Breakdowns are one-time purchases — no subscription, no recurring charge. Ghost AI analysis is a month-to-month subscription you can cancel anytime. Breakdowns are standalone: buy one, get it back in 24 hours, done.