Observed arrival · 2026-09-11

Chalk, film breakdown in your own playbook

chalklabs.app Observed source

Editorial interest 84/100 Selection signal · not a rating of the site

A football analysis tool that maps offensive film to a team’s formations, personnel, calls, and receiver routes.

Landing page captured for the 2026-09-11 issue.

Field notes

The proposed workflow pairs a coach-defined playbook record with measurements extracted from offensive film, including snap frame, field position, alignment spread, and route geometry. The example uses a 92 X-Slant from Trips Right and shows five receivers traced, while the accompanying manual log contains 62 plays. The site distinguishes visible extraction output from its unfinished central task: automatically joining what a staff drew with what the footage shows.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

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