Hi and welcome to OpenStreetMap. I've removed this test path (it worked - I could see it), and also tweaked the tagging on the tennis courts. Play structure doesn't really work for the lines, and some sites already automatically show them if the individual pitches are mapped (as they are now). See for example this from Openstreetmap France https://layers.openstreetmap.fr/?zoom=19&lat=52.45933&lon=13.62264&layers=B000000000FFFFFFFFFFFFFFFFFFFFFFFFF
If I can help with anything let me know.