Andy Murray won Wimbledon in 2013 after losing the '12 final. (Clive Brunskill/Getty Images; Glyn Kirk/AFP/Getty Images)
The BTB Awards are our look back at the best — and worst — of the tennis season. Today we assess the trends of 2013. Click here for our complete archive of year-end awards.
In: Rafael Nadal's dominance.
Out: Rafael Nadal's knee pain.
In: Serena Williams' commitment.
Out:"Serena Williams is too distracted by outside interests."
In: Andy Murray, British hero.
Out: Andy Murray, Scottish tennis player.
In: Trying to retire Roger Federer.
Out: Trying to retire Rafael Nadal.
Out: Caroline Wozniacki.
Out: Slightly smaller raft of stories about the U.S. men's struggles.
In: Agnieszka Radwanska, shot-maker.
Out: Agnieszka Radwanska, pusher.
Out: Roger Federer, Twitter holdout.
In: Players not knowing their responsibilities under tennis' anti-doping rules.
Out: Players not knowing how much time they're allotted between points.
Sloane Stephens went 15-4 at majors and 24-19 at all other events this year. (Carl Court/AFP/Getty Images)
In: Sloane Stephens, Grand Slam threat.
Out: Sloane Stephens, tour-event threat.
In: A WTA breakthrough at Wimbledon.
Out: A WTA breakthrough at the French Open.
In:British woman hasn't won Wimbledon in 36 years.
Out:British man hasn't won Wimbledon in 77 years.
In: Stanislas Wawrinka's “Ever tried. Ever failed. No matter. Try again. Fail again. Fail Better" tattoo.
Out: Janko Tipsarevic's "Beauty will save the world" tattoo.
In: Jerzy Janowicz, legitimate top-20 threat.
Out: Jerzy Janowicz, one-hit wonder.
In: Last American standing: Tim Smyczek.
Out: Last American standing: Andy Roddick.
In: Thomas Hogstedt as Caroline Wozniacki's coach.
Out: Thomas Hogstedt as Maria Sharapova's coach.
There will be no documentary made for Jimmy Connors' coaching tenure with Maria Sharapova. (Bob Thomas/Getty Images; Matthew Stockman/Getty Images)
Out: Jimmy Connors' coaching career.
Out:Psy's Gangnam Style.
In: "HOW MANY TIMES?!?!?"
Out: "YOU CANNOT BE SERIOUS!!!"
In: Complaints about the grass at Wimbledon.
Out: Complaints about the blue clay at the Madrid Open.
In: Novak Djokovic vs. Rafael Nadal.
Out: Rafael Nadal vs. Roger Federer.
In: WTA dominance at the top.
Out: WTA parity.
In: Novak Djokovic's streak of 18 Grand Slam quarterfinals.
Out: Roger Federer's streak of 36 Grand Slam quarterfinals.
In: Maria Sharapova and Grigor Dimitrov.