Upload Guide

How to film for the best analysis

Great analysis starts with great footage. Follow these guidelines to give your coach the clearest view of every swing phase.

Filming Best Practices

Camera Angle

✓

From the hitter's open side (the side they face), perpendicular to home plate at waist height — the only angle that shows the full swing path

✕

From behind, the closed side (this inverts the drift and barrel-depth scores), above, or at an angle

Distance

✓

Full body visible with some margin — head to feet plus a foot of space on each side

✕

Too close (body cropped) or too far (hard to see mechanics)

Frame Rate

✓

240 fps slow-mo (iPhone/Android) is ideal. 120 fps works. 60 fps is the minimum.

✕

Standard 30 fps — too few frames to capture the key moments between phases

Lighting

✓

Well-lit cage or field. Even lighting on the hitter's body.

✕

Backlit (sun behind hitter), dark indoor cage, or harsh shadows

Duration

✓

Capture the full swing — from setup through follow-through. 2-3 seconds is plenty.

✕

Starting the recording mid-swing or cutting off the extension

Background

✓

Clean background with contrast against the hitter's body. Cage netting is fine.

✕

Busy backgrounds with other players, equipment, or movement behind the hitter

Resolution & Focus

✓

1080p or higher, sharp focus locked on the hitter. Crisp frames are what pose and bat detection read.

✕

Low-res or soft, motion-blurred frames — worst at Bat Lag, the fastest phase, where blur breaks bat detection

Two things that change the score

  • Film the open side. The hitter's facing is derived from their handedness, so footage shot from the closed side inverts the Forward Drift Control and Barrel Entry Depth scores. Shoot the side they face.
  • Keep Bat Lag sharp. Bat Lag is the fastest phase. A motion-blurred barrel breaks bat detection — slow-motion (120+ fps) and locked focus keep it crisp.

Video Upload (Recommended)

The easiest way to submit is to upload a single slow-motion video of the swing. Your coach will scrub through the footage frame-by-frame and capture the exact right moment for each of the 7 phases — no guesswork on your part.

1

Film a single swing in slow-motion from the side

2

Upload the video in the report builder

3

Your coach selects the 7 key frames — done

The 7 Phases — What to Capture

If you're uploading individual photos instead of video, here's exactly which moment to capture for each phase.

01

Starting Position

When to capture

The moment the hitter is set in the box, bat up, eyes on the pitcher — before any movement begins.

What to look for

Weight balanced 50/50 or slight back-load. Hands relaxed near the back shoulder. Head still, eyes level.

02

Apex Gather

When to capture

Peak of the load — back hip has coiled inward, weight has shifted back, hands may have a small pre-swing drift.

What to look for

Back knee inside the back foot. Slight upper-body coil. No forward drift yet.

03

Launch Position

When to capture

The front heel has just planted. The stride is complete but the swing hasn't fired yet.

What to look for

Front foot down, torso still closed. Hands near the back shoulder. Maximum separation between lower and upper body.

04

Attack Angle

When to capture

Hands have started forward — the bat knob is leading toward the ball. Barrel is still behind the hands.

What to look for

Hands inside the ball. Barrel entering the zone on-plane. Chest still resisting rotation.

05

Bat Lag

When to capture

Hips have cleared, hands are driving forward, but the barrel still trails behind — maximum lag.

What to look for

Hips open, barrel behind hands. The kinetic chain is sequencing: hips first, then torso, then arms.

06

Contact

When to capture

The exact moment the barrel meets the ball (or where the ball would be for dry swings).

What to look for

Firm front side. Back knee bent. Barrel on-plane through the zone. Arms not yet fully extended.

07

Extension

When to capture

Just after contact — arms are extending through the ball toward the pitcher.

What to look for

Full extension toward the target. Weight transferred to front side. Arms connected, barrel driving through.

Pre-Upload Checklist