Nadal and Halep top rankings Two Grand Slam wins apiece propelled tennis superstars Rafael Nadal and Roger Federer back to the top of the year-end rankings while Simona Halep’s consistency across the season secured her No. 1 spot GRAND SLAM CHAMPIONS Australian Open Roger Federer SUI Serena Williams USA Roland Garros Rafael Nadal ESP Jelena Ostapenko LAT Wimbledon Roger Federer SUI Garbine Muguruza ESP U.S. Open Rafael Nadal ESP Sloane Stephens USA Fed Cup Final (women) United States bt Belarus, 3-2 Davis Cup Final (men) France bt Belgium, 3-2 Rafael Nadal Simona Halep Men YEAR-END RANKINGS 2017 Women 1 Rafael Nadal Spain 1 Simona Halep Romania 2 Roger Federer Switzerland 2 Garbine Muguruza Spain 3 Grigor Dimitrov Bulgaria 3 Caroline Wozniacki Denmark 4 Alexander Zverev Germany 4 Karolina Pliskova Czech Rep. 5 Dominic Thiem Austria 5 Venus Williams United States 6 Marin Cilic Croatia 6 Elina Svitolina Ukraine 7 David Goffin Belgium 7 Jelena Ostapenko Latvia 8 Jack Sock United States 8 Caroline Garcia France 9 Stan Wawrinka Switzerland 9 Johanna Konta Great Britain 10 Pablo Carreno Busta Spain 10 Coco Vandeweghe United States Sources: ATP, WTA Pictures: Getty Images © GRAPHIC NEWS