# Glossary

> Simple meanings for the words used across the app.

Source: https://getgoodatbadminton.com/docs/glossary
Updated: 2026-10-11
Answers: What is a forced error? / What is an unforced error? / What counts as a winner? / What's the difference between a forced and an unforced error? / Who gets credit for a forced error?

## What this is

These are the main words used in the app. Most show up in Match Tracker, tracking, and insights. If a word is new to you, look here.

## Match and video

**Match** — A badminton match (singles or doubles) you turn into data. One video can hold one match or more.

**Video** — A file you upload, or a source you connect. Your videos live in your **Videos** library. You can use one video for more than one project.

**Segment** — A part of a video you mark to track, like one game inside a long video. Clear segments make the cost more accurate and keep tracking on real play.

**Game type** — Whether the match is singles or doubles. You set this during setup.

## Tracking parts

**Project** — One match you are setting up, tracking, checking, and finishing in Match Tracker.

**Rally** — One round of play, from the serve until the point ends. Rallies are the base of every match.

**Shot** — One hit in a rally, like a clear, drop, smash, or net shot. Shots are tagged in order to show how the rally went.

**Outcome** — How a rally ended: a winner, a forced error, or an unforced error, and which player it belongs to. Most patterns come from outcomes.

**Winner** — A shot the opponent couldn't return, so the player who hit it gets the credit and their side wins the point. GGAB tells winners from errors by who serves next, since the side that won a rally serves the next one.

**Forced error** — A rally-ending mistake under pressure: GGAB calls an error forced when the shot just before it was a smash, kill, drive or brush. The player who made it loses the point, and pro match pages credit it to the player who drew it with that shot.

**Unforced error** — A rally-ending mistake when the shot before it wasn't a smash, kill, drive or brush: the player had time and options and missed anyway. It counts against the player who made it, and the other side wins the point.

**Note** — A comment you add to a rally or moment for yourself.

## Tracking steps

**Automatic tracking** — You send a match and we build the rally and shot data for you, instead of you tagging every shot.

**Shot tagging** — You mark the shots yourself in the editor. You can tag the shots and let us fill in the rest. This lowers the cost.

**Review** — Checking the rallies, shots, and points for mistakes before you trust the data.

**Finalize (mark done)** — Marking a checked match as complete and ready for insights. Only finished matches feed your insights.

**Returned match** — A match we sent back with an **Action needed** banner because something needs fixing. Fix it and send it again.

## Tokens and cost

**Token** — What you spend on automatic tracking and on AI answers. As a guide, 10,000 tokens cover about 30 minutes of real matchplay, and a question to Ask GGAB costs about 100. Tagging shots yourself lowers the tracking cost.

**Estimate** — The cost we show before you send a match. It comes from your segments or the video length.

**Hold** — Tokens we set aside when you send a match. We charge the real cost once tracking is done and release the rest.

**Settlement** — The real charge after a match is finished, based on what we actually tracked.

## Insights

**Performance Insights** — The area that turns your finished matches into patterns and trends.

**Match Breakdown** — A close look at one match, with the rallies, shots, points, and the AI read.

**Trends Over Time** — How a number changes across several matches.

**Pro Comparisons** — Views that compare you to pros. Pro data never mixes into yours.

**Ask GGAB** — The assistant that answers questions about your data. It works best with clear questions and more finished matches.

## Related guides

- [Getting Started](https://getgoodatbadminton.com/docs/getting-started)
- [Match Tracker](https://getgoodatbadminton.com/docs/match-tracker)
- [Tracking and Tokens](https://getgoodatbadminton.com/docs/auto-tracking-tokens)
- [Performance Insights](https://getgoodatbadminton.com/docs/insights)