Yardline Atelier

BETTER SOFTWARE DESIGN

About this app

Yardline Atelier is a local Android assistant for running a friendly, non-contact American flag football match. It helps a scorekeeper manually follow each possession, record progress, check the remaining down and distance, undo the latest mistake and keep a clear event history.

Set up a match with two team names and local house rules, including field length, yards needed for a new series, downs per series and points for reaching the end zone. Default values are editable before the first play: 50 yards, 10 yards for a new series, four downs and six points for a score.

During play, a large horizontal yardage scale shows the ball and series target from the current team’s own line. Enter gained or lost yards, mark an incomplete pass, or manually end a possession. Before confirming, the app shows the expected next position, down and any possible series change. Incomplete passes use a down without movement. Reaching the target starts a new series, running out of downs prompts a possession change, and reaching the end zone prompts confirmation of the configured points.

A play feed groups confirmed events by possession, showing the team, event type, yardage entered and state after the action. Tap an event to view the before and after state. Current mistakes are corrected by undoing the most recent confirmed event, including its effect on score, possession and series.

Finish a match with confirmation and save the score, play count, possessions for each team, rule snapshot and an optional note. The archive lets you search completed matches by team name, review the summary, rules and full feed, edit the note, or delete a match after confirmation. An optional match-place photo can be added from the camera if permission is granted; the match card remains usable without it.

Yardline Atelier works fully offline. It does not require accounts, internet access, remote data or network requests. It is not a video game, an official statistics source or a playbook builder, and it does not model kicks, penalties, extra points or other rules beyond the described manual workflow.