RT42 is working to record the dimensions of all courts in the world. So if you’re interested in how tambour angles compare, or how much bigger Fontainebleau is than Oxford, this will be the place to be.

It is still a work in progress, and many more courts are set to follow, but to see the current record click below.

NB this list is incomplete and the averages are liable to change as the remaining data is uploaded.