Three women in the field have topped the world rankings this season, incumbent Simona Halep and her predecessors Garbine Muguruza and Karolina Pliskova, but none of them have been able to kick on and cement their place as the tour's dominant player.
When it comes to tennis parties, there is none bigger than the WTA Pre-Wimbledon Party. Check out some images from the party.
Serena Williams was once again on the stage but this time it was her own fashion show during New York Fashion Week.
Images from Day 4 at the French Open in Paris, on Wednesday.
Simona Halep was able to shake off the disappointment of a third consecutive early exit from the WTA Finals by focusing on a positive year that led to the 26-year-old old Romanian climbing to the top of the world rankings.
Olympic bronze medallist Saina Nehwal is placed fourth in the list headed by American tennis legend Serena Williams followed by Maria Sharapova and elder sister Venus.
Williams had little trouble against the 31-year-old German although the gusty breezes at Auckland Tennis Centre played havoc with her ball toss, especially when she was serving for the match at 5-3 in the second set.
Factbox on Romanian Simona Halep, who beat Serena Williams 6-2, 6-2 to win the Wimbledon title on Saturday:
Lion-hearted Li Na broke new ground for China at the Australian Open on Thursday, fighting back to topple World No1 Caroline Wozniacki and become her country's first singles Grand Slam finalist.
American 15-year-old Cori Gauff stole the show on the opening day of Wimbledon with a debut victory over five-time champion and her inspiration Venus Williams.
Rory McIlroy, the World's No 1 golfer, experienced an awkward moment when he went to watch Ulster take on Connacht in a rugby match on Friday.
The lanky wild card kissed the Montreal court after completing a rousing 3-6, 6-4, 7-6(4) triumph as the 18-year-old became the youngest player to ever reach the quarter-finals of an ATP Masters 1000 event.
Two-time Grand Slam winner Victoria Azarenka crashed out of the French Open in the first round losing 5-7, 5-7 to Katerina Siniakova on Monday, playing only her fifth tournament of the year after a legal battle over the custody of her son.
IMAGES from the PNB Paribas Open played at Indian Wells in California on Monday
Ons Jabeur hopes her success at the Australian Open will inspire other players from her region after the Tunisian became the first Arab woman to reach a Grand Slam quarter-final on Sunday. The 25-year-old dazzled the crowd at Margaret Court Arena with her variety and power, striking 29 winners to defeat China's Wang Qiang 7-6(4), 6-1 in the 77-minute contest.
The 27-year-old Romanian beat Sloane Stephens at Roland Garros to win her maiden Grand Slam title in June and will have spent 40 weeks at the top of the rankings by the end of the season.
Out of contention in singles, Sania Mirza was off to a winning start in women's doubles event as the Indian and her Dane partner Caroline Wozniacki notched up a straight-set victory to enter the second round of the Wimbledon.
Halep reached the Melbourne title match in 2018 but lost a three-set thriller to Caroline Wozniacki. It was the Romanian's third defeat in three Grand Slam finals.
Improving with age is a euphemism not taken to kindly by some women but it would seem in tennis that quality, these days certainly, comes with experience.
Serbia's Jelena Jankovic crushed leg-weary Caroline Wozniacki to reach the semi-finals of the WTA Championships while American holder Venus Williams reached the last four on Friday without hitting a ball.
Federer, Djokovic headline Day 2 at Flushing Meadows
Defending champion Venus Williams eased into the third round of the Dubai Championships on Tuesday with a 6-2, 6-3 victory over Germany's Sabine Lisicki. Top seed Caroline Wozniacki had to recover from 1-5 and save a set point to defeat Slovak Dominika Cibulkova 6-2, 7-6 while second seed Svetlana Kuznetsova received a walkover when Spain's Anabel Medina Garrigues withdrew with a back injury.
In the crucial ninth game Suarez Navarro seemingly held but Sabalenka challenged an ace at 40-15 and won the discussion.
Denis Shapovalov may not be old enough to drink in New York but is quickly becoming the toast of the Big Apple and the 18-year-old Canadian will again have a chance to light up the U.S. Open when he takes on Briton Kyle Edmund.
Other nominees for the prize are Angelique Kerber (Germany), Petra Kvitova (Czech Republic and Caroline Wozniacki (Denmark).
Images from matches played on Day 5 at the Australian Open in Melbourne Park on Friday
Wimbledon champion Garbine Muguruza notched up her first ever victory on Arthur Ashe Stadium with a 6-0, 6-3 win over American Varvara Lepchenko at the US Open on Monday.
Halep, who held the WTA year-end top ranking in 2017 and 2018, has not lost a set in her first week at Melbourne Park and was aggressive against Putintseva from the outset.
Japanese 38-year-old Kimiko Date Krumm gave 18-year-old Danish opponent Caroline Wozniacki a run for her money on her return to Wimbledon before going down 7-5, 3-6, 1-6.
Serena Williams saved three match points and Novak Djokovic revived his stuttering Australian Open preparations in fierce heat at the Sydney International on Wednesday.
Can World No. 1 Simona Halep thrive at the All England Club? Or will Serena Williams add to her seven Wimbledon titles?
The 36-year-old has been practising hard on the grass and few would bet against her becoming the first mother to win the title since Evonne Cawley 38 years ago.
List of Australian Open women's singles champions since the event began in 1922 (Australian unless stated):
France's Alize Cornet beat a despondent Serena Williams 6-4, 6-4 in the semi-finals of the Dubai Championships on Friday in what the world number 26 described as the biggest win of her career.
Open Championship legends Sir Nick Faldo and Johnny Miller have told Rory McIlroy to concentrate on golf to climb out of his current slump.
'Maria will look at it and see no one dominant. Serena Williams is the only player in the past who has been like a thorn in her side, but she feels mentally superior to most of the other and she feels she can win against them all'
World No 1 Serena Williams smashed a racquet and recovered from a set down as she overcame stubborn resistance from Caroline Wozniacki in a semi-final at the WTA Finals last week. It was not the first time the world No 1 abused her playing equipment. Take a look at previous moments when she soaked up her frustration on court by smashing her racket.
Sisters Serena and Venus Williams marched into the quarter-finals of the Miami Open after straight-set wins at Key Biscayne on Monday.
IMAGES from the Australian Open matches played on Monday
The former World No 1 golfer, Rory McIlroy, is facing heavy criticism from all quarters of life. So there has been a string of changes in his golfing and private life!