# Trends Over Time

> Follow one number across many matches to see if your game is getting better.

Source: https://getgoodatbadminton.com/docs/trends
Updated: 2026-09-03
Answers: How do I see how my game changes over time? / What do I need before Trends works?

## What Trends is for

Trends Over Time follows one number across many matches so you can see whether something is getting better or worse. Where [Match Breakdown](https://getgoodatbadminton.com/docs/match-breakdown) zooms into a single match, Trends shows you the line across many of them.

Open it from **Performance Insights → Trends Over Time**.

## What you need first

Trends needs matches on at least three different days, so until then the page asks you to track matches on three separate days. Finish a few more matches across different days and the chart will open up.

## Choose what to follow

- **Player** — the player you want to follow, which is you by default.
- **Metric** — one number, like your error rate or your winner rate.

## Narrow the matches

Pick exactly which matches feed the line:

- **Date range** — the last 90, 180, or 365 days, or all of them.
- **Match type** — all, official match, practice match, or other.
- **Event** — all, singles, doubles, or one event (MS, WS, MD, WD, XD).
- **Labels** — only if you've tagged rallies with labels.

## Read the chart

The chart plots your number up the side and the match date across the bottom. Turn on **smoothing** to switch from the raw numbers to an average, which makes the overall direction easier to read when your matches jump around.

The date on the bottom axis is the **match date** on each project — the day you played. Leave it blank and we date the match from the video instead: the day the camera recorded it when the file says so, otherwise the day you uploaded it. That covers most matches, but footage you uploaded weeks after playing can still land on the wrong day. See [setting the match date](https://getgoodatbadminton.com/docs/match-tracker#set-the-match-date) to put those back where they belong.

## Tips

- Keep your player setup the same so you're following the same player cleanly.
- Check the match date when you're catching up on old footage. We pre-fill it from your video, but a backlog is exactly where that guess misses — and the date is what makes the timeline honest.
- A few matches show you a direction, and more matches make it trustworthy.
- If a number is heading the wrong way, open a recent match in [Match Breakdown](https://getgoodatbadminton.com/docs/match-breakdown) to see what's driving it.

## Related guides

- [Performance Insights](https://getgoodatbadminton.com/docs/insights)
- [Match Breakdown](https://getgoodatbadminton.com/docs/match-breakdown)
- [Pro Comparisons](https://getgoodatbadminton.com/docs/pro-comparisons)