Kovid
First of all, thank you for Calibre! I subscribe to the print editions of 3 newspapers and many magazines, but I travel internationally a lot and it is GREAT to be able to get those on my kindle when I'm overseas. I have donated to show my appreciation.
I'm not sure if the link below is the one you are asking for. It will provide NFL sports, which will be better than the high school sports currently in the recipe.
http://www.washingtonpost.com/wp-dyn.../nfl/index.xml
I could not find one that covered all sports, which would be better.
Many people read the washington post sports for Redskins coverage and its RSS is
http://www.washingtonpost.com/wp-dyn...kins/index.xml
Hope this info is what you need. Thanks again!