All the countries in the World have their own Track & Field stadiums and tipically each track is represented in different ways in OSM. It can be hard when you download the data (if you have different domains, you cannot get all the tracks in one shot) or when you want to get an harmonized representation.
That’s why I invest my time to update all the Track & Field stadiums in Portugal, using the map provided by the Portuguese Athletics Federation.
In the first approach I just consider the right category and geometry.
Now I done something more detailed for the 7 tracks are being used now for the Portuguese Teams Championships. First I defined an inner line to get the name of the track in the map (using the label) and after I created an overall area with all the track and their tipical center (grass). Around I had defined the stands and the lights. Outside of the stadium I defined the streets, parks, trees, walking paths, etc.
It is my first structured approach in OSM. If anyone knows another experiences about Track & Field stadiums in OSM, please share with me.