There was little movement at the top in April, but Ana Ivanovic did make her way into the Top 10, and a couple of lower-ranked Americans surged.
This month's Advanced Baseline rankings. With the French Open on the horizon, we're going to have some fun with these numbers in May.
Inside Advanced Baseline's most unconventional ranking, and how scoring margin can identify top players.
This month's Advanced Baseline women's rankings. Serena Williams remains No. 1, and Sara Errani moves into the Top 10.
This month's Advanced Baseline men's rankings. Novak Djokovic is still in first, but David Ferrer has jumped to third.
Neither man could win a service game in the decisive third set, but Andy Murray eventually beat David Ferrer in the Sony Open final to move to No. 2 in the world.
Serena Williams rallied from one set down in the Sony Open final, defeating Maria Sharapova 4-6, 6-3, 6-0.