Now this is where it gets exciting! What I love about the data is how enthralling it really can be.
Let’s start with the good news. Not only was there a 100% rate of accuracy despite the absolute shock from the 1st Round through to the semifinals, both Andreeva and Zverev prevailed as maiden Grand Slam Champions. As for the semifinals, that was a 25% and 50% churn respectively which ironically follows similar patterns of how the data really didn’t fare well this Roland Garros. It’s essential to put into view the role of the data and why this French Open the results were so skewed. First and foremost, players are human which means there’s always a margin of error due to the human condition. This is a really interesting dynamic that can never be accounted for should a player stumble from their current form. There were many breakthrough performances throughout the Championships with both Chwalinska and Cobolli reaching their maiden Grand Slam Final. Sure, Chwalinska’s odds were stacked highly against her but when you take the time to look at her game, it really wasn’t that surprising. When it comes to Cobolli, I think this is where the data didn’t lean heavily enough considering his recent climb (almost) into the Top 10 plus his trajectory. Cobolli was perhaps in peak perform coming into Roland Garros whilst Andreeva was finding her groove and climbing.
Recall in the later episodes of Beyond Top 10 Tennis when Andreeva was flagged to win her maiden Grand Slam this season. Yep, you read that right. Or heard it if you were listening to the episode. Similarly, I’d spoken (and written) about how Andreeva had to hold – to wait until it was her time to claim a Grand Slam similar to how Gauff had to wait. The best news here is that due to Andreeva’s ‘hold’ she’s now increasingly more likely to win another Grand Slam and remain inside the Top 10 (incase there were any doubts).
And this is the power of the data.
When it comes to Zverev, he was always predicted to reach the Finals with Alcaraz out and Sinner in the other half of the draw. Of course, with Sinner’s early exit Zverev did become the favourite. I don’t think anyone would have thought Zverev would be pushed to five by Cobolli, but then again, I’m sure many thought perhaps Zverev would choke and Cobolli would go all the way. We’ve all seen it happen! (Perhaps Zverev would hold the line, done in three?). He did however allow Cobolli back into the match which made it all the more harder for Zverev to inch closer to that Championship win. The fifth set, of course was what was expected.
Chwalinksa had the tournament of her life. With a ranking that will allow her direct entry into Grand Slams and higher tier tournaments, I’m going to be watching closely to see if she holds her newfound baseline.
When Raducanu made her US Open run as well as Fernandez, both were able to hold a Top 30 ranking for some time, but not the results expected of a Grand Slam Champion or Finalist. That said, Fernandez has faired quite well but has been unable to push further towards the Top 15, for example more robustly. Andreescu was a few seasons earlier and unfortunately injuries have plagued the Grand Slam Champion but importantly, soon after her peak performance she wasn’t able to hold onto her Top 10 ranking for more than two seasons which is a critical benchmark.
On a different take, Chwalinka had to face Mertens in the 2nd Round and did not face a seed until the semifinals (Shnaider) then the Final – Andreeva. Interestingly, Andreeva did not face a Top 10 opponent all tournament! Cobolli did face a Top 10 opponent for the first time in the semifinals (Auger-Aliassime) and then Zverev. Noteworthy, Zverev did not face a Top 10 opponent until the Finals (going off seeding)! This does not normally happen. Nope. But this does also highlight how abnormal the 2026 French Open Championships really were.
Now let’s take a closer look at the Round of 16 benchmark and what players were able to hold their level from the 2025 season through to the 2026 Championships. Keep in mind, irrespective of later results, the Round of 16 is a key performance indicator that should be met to align with a player’s fundamental baseline.
On the WTA Tour in 2025 the Round of 16 included: Rybakina, Swiatek, Paolini, Svitolina, Samsonova, Zheng, Keys, Baptiste, Alexandrova, Gauff, Sabalenka, Anisimova, Boisson, Pegula, Andreeva and Kasatkina.
On the ATP Tour in 2025 the Round of 16 included: Popyrin, Paul, Zverev, Griekspoor, Tiafoe, Altmaier, Musetti, Rune, Shelton, Alcaraz, Bublik, Draper, Sinner, Rublev, Norrie and Djokovic.
In bold are all players who advanced to the quarterfinals and in italics are your semifinalists of the 2025 French Open. The respective Finals comprised of Gauff v Sabalenka & Alcaraz v Sinner with Gauff and Alcaraz the eventual Champions. With that out of the way, let’s focus on the 2026 Round of 16 because there’s a significant difference.
2026 WTA Tour: Sabalenka, Osaka, Keys, Shnaider, Potapova, Kalinskaya, Chwalinska, Parry, Svitolina, Bencic, Kostyuk, Swiatek, Andreeva, Teichmann, Cirstea and Wang.
2026 ATP Tour: Cerundolo (CM), Berrettini, Tiafoe, Arnaldi, Auger-Aliassime, Tabilo, Cobolli, Svajda, Mensik, Rublev, Ruud, Fonseca, Jodar, Carreno Busta, De Jong and Zverev.
Five WTA Tour players maintained their baseline in contrast to two ATP Tour players. Of those five, three maintained their quarterfinal baseline and of the two, one maintained their quarterfinal baseline. Both Andreeva and Zverev maintained their 2025 to 2026 quarterfinal and semifinal baseline respectively whilst keeping in mind a Round of 16 benchmark remains firm.
Whilst some players do consistently breach this baseline and achieve a quarterfinal or further result, a Round of 16 correlates with a Top 10 ranking should it be a consistent metric. As such, of the 5 x WTA Tour players and 2 x ATP Tour players, 4 x WTA players were inside the Top 10 prior to the Championship and 1 x ATP player – Sabalenka, Svitolina, Swiatek, Andreeva and Zverev. As such, these five players align with the ruler of the 8% (recall from “How to Develop a Top 10 Tennis Ranking“). Fascinating! And of these 5 players, four are now Grand Slam Champions!
Thirteen of the 2025 WTA Round of 16 players have been previously and/or currently ranked inside the Top 10 in contrast to 7 of those who advanced to the 2026 Round of 16. Twelve of the 2025 ATP Round of 16 players have been previously and/or currently ranked inside the Top 10 in contrast to 8 of those who advanced to the 2026 Round of 16. Collectively, that’s an even twenty per tour across season.
An even split!
Why is this important? Whilst I’ve written about it in my Books (thirteen non-fiction to date), there is no discrepancy between tours. Yes, the Men may regress one season while the Women may follow in the next, there’s always a level of equilibrium which is rather exciting and often overlooked.
Now for the rankings post 2026 Roland Garros!
To begin, let’s narrow in on the Top 10. On the WTA Tour Muchova (10) leads Bencic (11) by less than 60 points, whilst Bencic leads Kostyuk (12) by more than 200. Shnaider (16) is back inside the Top 20 but not at her peak whilst Kalinskaya is back at 20 which also is not her peak. Chwalinksa is unsurprisingly the biggest winner (21) on the verge of the Top 20 and if her ranking did allow her direct entry to Wimbledon (which I believe the 2026 Wimbledon Championships rankings have already been cut off which is grossly unfair if you ask me), we’ll need to wait until the hardcourt season to see if Chwalinska will finish the season inside the Top 20. I’m saying yes. But before I get to the Top 10, let’s look at some interesting numbers. Wang is at 100 (up 48 places) a stark contrast to Chwalinska but deserves an applause. Kenin (103), V Kudermetova (104), Pliskova (106), Haddad Maia (108), Sun (110), Pavlyuchenkova (115), P Kudermetova (121), Zheng (122), Badosa (141), Boisson (155), Andreescu (158), Danilovic (197), E Andreeva (234) and Azarenka (304) is a non-exhaustive list of players that were inside the Top 100, Top 50, Top 20 to Top 10 within the last two seasons and have substantially regressed!
On the same account, two seasons ago Mboko (9) was around (or greater than) those ranking ranges and now remains inside the Top 10 courtesy of limited points to defend in the early part of the season. Due to Svitolina’s strong run last season, she’s ironically back a place (8) whilst Gauff (7) has slipped outside the Top 5 but this was anticipated prior to the Championships. Andreeva (6) has also remained outside the Top 5 irrespective of her maiden Grand Slam win due largely in part to the high level and depth of results she’s achieved so it only reflects slightly in the rankings. Interestingly, the Top 5 largely remains in tack with Anisimova (5) ahead by slightly less than 100 before Pegula (4) is ahead by 200. The gap between Swiatek (3) and the rest is only by a little less than 700 – perhaps the smallest gap we’ve seen in some time. But what’s really interesting is Rybakina’s (2) hold of approximately 1400 points ahead whilst Sabalenka (1) has less than a 1000 point lead. Well within reach.
With Wimbledon now mere weeks away, Swiatek and Anisimova have the most to lose. Should Anisimova fall before the Finals she’ll still comfortably remain inside the Top 10 – but not Top 5. The same applies for Swiatek should she not defend her crown and will regress alike Gauff outside the Top 5, leaving Sabalenka as the only ‘standing’ Top 3 we’ve become accustomed to over the last few seasons. Whilst Pegula’s relentless consistency should see her remain inside the five, noteworthy is Rybakina who doesn’t have as many points to defend until the second half of the season and why she’s actually in prime position to claim the No. 1 ranking should her baseline slightly improve. There are of course other factors to consider but I’ll leave it at that for now!
On the ATP Tour, Cobolli is firmly inside the Top 10. Yes, he was seeded 10 for the French Open but now his ranking reflects this stance. Bublik (11) is out by 600 points, Musetti (16) still within reach of rejoining the Top 10 when he recovers, whilst Mensik (17) is back inside the Top 20 but this is not his career high. Jodar (23) is at a career high and Fonseca (25) is now comfortably inside the Top 30 whilst Paul’s (28) regression continues despite his progression prior to Roland Garros. Arnaldi (34) is perhaps the biggest increase with a 70 point climb but I don’t believe this is his career high alike Berrettini (48) who has rejoined the Top 50 whilst Rune (64) continues to regress whilst he remains out of action. Tsitsipas (84), Popyrin (90), Mpetshi Perricard (93), Hurkacz (96), Wawrinka (110), Draper (112), Thompson (152), Dimitrov (170), Goffin (242), Monfils (259) and Nagal (278) is a non-exhaustive list of players who were ranked inside the Top 100, Top 50, Top 20 to Top 10 this season or within the last two! There are some quite significant regressions from former Top 10 players, for example, which is again noteworthy.
Now let’s narrow in on the Top 10 as asides from Cobolli all players remain in place with perhaps the biggest difference being the switch between Djokovic (7) and Auger-Aliassime (4) who remains a little less than 3000 points behind Zverev. When it comes to Sinner and Alcaraz, both who have dropped significant points, Alcaraz leads Zverev by more than 2500 points and Sinner leads Alcaraz by 3500 points. A big difference. That said, with Alcaraz out of Wimbledon he’ll regress even further and should remain at No. 2 unless Zverev has a solid run on the grass. Yes, there are additional factors to consider but alike the WTA Tour, I’ll best leave it there!
With the significant discrepancies between results over the last fortnight it’s important to consider those who maintained the Round of 16 threshold do in fact remain and align with the 8% – the most powerful predicator of success.
As for the 2026 French Open Champions, both Andreeva and Zverev were on course – their data was on track. No, Chwalinska and Cobolli were not anticipated to make the Finals and in Chwalinska’s case, most likely fall before the 3rd Round. But that wasn’t the case. Similar to Mboko winning Montreal (I believe) and now firmly holding her place inside the Top 10, these breakouts do happen and its now time to look towards the grass and see what anomaly waits us next and which players with the established baseline and peak will take home the 2026 Wimbledon Championships!














