If variety is the spice of life, then the WTA Tour is five-alarm chilli. While the “Big Three” of Novak Djokovic, Roger Federer, and Rafael Nadal have won 10 straight Grand Slams on the men’s side, the last 10 Slams on the women’s tour has seen nine different winners, including six first-timers.

Here’s the full list of the last 10 Grand Slam champions, with first-timers in bold.

• 2017: Serena Williams (Australian Open), Jelena Ostapenko (French Open), Garbine Muguruza (Wimbledon), Sloane Stephens (US Open)
• 2018: Carolina Wozniacki (Australian Open), Simona Halep (French Open), Angelique Kerber (Wimbledon), Naomi Osaka (US Open)
• 2019: Naomi Osaka (Australian Open), Ashleigh Barty (French Open)

Heading into Wimbledon 2019, the odds to win the tournament reflected just how wide-open women’s tennis is right now compared to the men’s game.

According to Sascha Paruk from SBD, Djokovic was +150 to win the men’s singles title before round one commenced, while Federer was +330, and Nadal was +530.

Those numbers might not mean much to the uninitiated, but Paruk explained that the pretournament odds gave the so-called Big Three an 80% chance to win. Whereas, on the women’s side, the top three favourites – Ashleigh Barty, Serena Williams, and Karolina Pliskova – were only given a 40% chance to win the singles title.

The first four rounds produced a few truly surprising results in the women’s draw, none bigger than Osaka, the #2 seed, losing decisively in round one to Yulia Putintseva (7-6, 6-2).

Osaka is the only woman to capture multiple Slams over the last 2,5 years and she had reached the third round in her last two tries at the All England Club. But she was her own worst enemy this year, committing 37 unforced errors to Putintseva’s seven.

The Japanese star was solemn and visibly depressed in her post-match press conference, at one point stating, “Can I leave? I feel like I’m about to cry.”

Perhaps equally surprising was Angelique Kerber’s second-round loss to American Lauren Davies, currently ranked 111th. The German looked to be cruising after winning the first set 6-2, but she won just three more games, combined, over the next two sets (2-6, 6-2, 6-1).

Unlike Osaka, Kerber was done in by supreme play from her opponent. Davies finished with a huge edge in winners (45-13) and surged to victory despite committing 19 more UEs (50-31).

The round of 32 saw the hottest player on the WTA tour, #1-ranked Ashleigh Barty, lose to American Alison Riske (3-6, 6-2, 6-3). Now, in total, seven of the last 10 Grand Slam winners are out.

In addition to the Osaka, Kerber, and Barty upsets…

• Hsieh Su-Wei def. Ostapenko (6-2, 6-2) in round one
• Beatriz Haddad Maia def. Muguruza (6-4, 6-4) in round one
• Shuai Zhang def. Wozniacki (6-4, 6-2) in round three
• Johanna Konta def. Stephens (3-6, 6-4, 6-1) in round three

That only leaves two of the last 10 Grand Slam-winners drawing breath on the women’s side: Halep (#7 seed) and Williams (#11 seed).

Here’s the full slate for the quarterfinals on Tuesday:

• #11 Serena Williams vs Alison Riske
• #19 Johanna Konta vs Barbora Strycova
• #8 Elena Svitolina vs Karolina Muchova
• #7 Simona Halep vs Shuai Zhang

With Williams and Halep on opposite sides of the draw, it’s still possible that the final will be between two former Grand Slam champions, and they are, indeed, the favourites to emerge as of the quarterfinal, according to Paruk.

But the six non-winners include some incredibly talented women playing the best tennis of their careers, first and foremost, Britain’s Johanna Konta.

Seeking to become the first British woman to win Wimbledon since Virginia Wade in 1977, Konta has battled back from a set down in each of her last two matches. Making those comebacks all the more impressive is the quality of competition she was facing: #9 Sloane Stephens, followed by #6 Petra Kvitova, who is a two-time champion at the All England Club.

At this point in time, it looks like a neck-and-neck race between the six women vying for their first major title and the two women looking to add another trophy to their mantlepiece. But whether the turnover trend continues on the women’s side, it’s clear that the WTA remains the much more enigmatic side of tennis.

Case in point: Djokovic, Federer, and Nadal have dropped a grand total of three sets through the first four rounds. Not three sets each, three sets combined.