Navigate to [https://geojson.io/](https://geojson.io/)

Navigate to where you want to create the map.  Click the "draw linestring" button

Select your starting point.  Note that you must have a property at the start of the planned racetrack that is large enough to construct a speedway structure. (see the table above for details)

Click other locations on the map as you begin to build the path.  Note that the racetrack must meet the requirements listed here.  It is important to take note of the length of the speedway.

Once you are done, Double-click the starting point to close the loop.  

Click "Save" and "GeoJSON" to download the file to your computer.

Geojson

geojson.io

How to create a racetrack in geojson for submission to Upland for a speedway metaventure

Create racetrack