The tennis graphic is coming along; here's version 2 static. Thanks for the earlier comments on version 1 (more emailed than posted, you technophobes). Same Federer-Monfils example below. We now simply show points-from-set, set-by-set. (Sorry I had to shrink it to fit the blog format; you can blow it up using Ctrl+ in your browser.) I am exceptionally grateful to our talented "tennis team," especially Bas Bergmans, Modibo Camara, Joonyup Park, and Ken Teoh.
(Compare Version 1, here, which instead tracked points-from-match, set-by-set, with shading to convey intra-set developments.)