I created a Wimbledon "Tennis Edit Tracker":

I haven't had time to add more fun (e.g. show a leaderboard of who's doing most editing) But it is quite fun, just to see your edits showing up on there, and maybe I'll add features at the end of the week. It's project of the week to map tennis courts timed to coincide with Wimbledon. In fact an rather pleasantly relaxing way to spend an afternoon could be watching Wimbledon while sketching tennis courts into OpenStreetMap. That's what I'm doing right now!

Where to map tennis courts? Well I've added lots of information about this on the project page. Map your local ones first of course, but then try some in the U.S. Here's the game:

• Pick a random city or town in the U.S. and zoom in to see the street grid


• Look for parks or schools


• Zoom right in and then swap to the edit tab to launch Potlatch (or use your preferred Editor)


• You should see the bing imagery, but can you see any tennis courts?


• You can pan around a little bit, but avoid zooming out and loading too much data. To zoom out and pick a different spot, go back to the 'view' tab.

Why the U.S.? Well there you can see these schools and parks because they've been imported as single GNIS nodes (or you may spot a gap in the streets where a park is completely missing) You'll easily find a lot of work to do improving more important details of parks and schools, e.g. converting them from nodes to areas. Many parks and schools in the U.S. are still just mapped as single nodes (imported from GNIS)

Here's Sandia High School in Albuquerque which I randomly came across. Osmarender (subtle as ever) shows big fun icons for the tennis courts there, and as you can see I've added baseball pitches, and also buildings and service roads. Make these improvements at the same time, but be sure to add the tennis courts! Perfect relaxation while watching wimbledon!