tennis
Are Jannik Sinner and Elena Rybakina No. 1 on Every Surface? A Top-of-the-Table Elo Deep Dive
Two names currently sit at No. 1 overall in our Elo model: Jannik Sinner on the ATP side, Elena Rybakina on the WTA side. An overall No. 1 ranking is a blend of a player’s full match log across every surface, which raises an obvious question our surface-specific Elo model is built to answer directly — do either of them actually hold the top spot surface by surface, or is their overall number propped up by one especially strong surface while another quietly lags?
We asked the same kind of question about players further down each top 10 in our Zverev and Kostyuk deep dive (coming soon). This article applies it to the very top of the table instead, using our leaderboard’s training run from September 27, 2026 (03:10 UTC), built from 34,943 processed matches. Player-level detail — surface splits, logged match counts, and recent-match records — comes from each player’s own page, last updated the same day.
Jannik Sinner: No. 1 overall, No. 1 on two of three surfaces
Jannik Sinner’s overall Elo rating is 2132, the highest of any player on either tour by our model, built from 102 logged matches in his tracking window.
| Surface | Elo Rating | Logged Matches | Surface Rank (ATP) |
|---|---|---|---|
| Overall | 2132 | 102 | No. 1 |
| Clay | 2000 | 26 | No. 1 |
| Hard | 1951 | 47 | No. 1 |
| Grass | 1891 | 14 | No. 2 |
Two of his three surface ratings put him at No. 1 on our ATP leaderboard for that surface, matching his overall standing. Clay is his single highest surface rating (2000), ahead of Carlos Alcaraz’s 1954, and hard — the surface both tours are playing on right now, in this stretch of the outdoor hard-court season — also puts him first (1951, just ahead of Alcaraz’s 1947, a 4-point gap that’s essentially a coin flip within this model’s precision).
Grass is the exception. There, Alcaraz rates higher: 1928 to Sinner’s 1891, a 37-point gap that drops Sinner to No. 2 on that surface leaderboard. It’s also Sinner’s smallest surface sample of the three (14 logged matches, against 47 on hard and 26 on clay), so the gap sits on the thinnest data of his three numbers — worth noting, not dismissing, since 14 matches still clears the leaderboard’s own 15-match publishing floor only barely and is a genuinely smaller base than his other two ratings.
Sinner’s recent record — and an honest gap in the log
Our data shows Sinner’s 10 most recent logged matches running from May 17 to July 12, 2026:
- Wins: Alexander Zverev (July 12), Novak Djokovic (July 10), Jan-Lennard Struff (July 7), Shintaro Mochizuki (July 5), Jenson Brooksby (July 3), Nuno Borges (July 1), Miomir Kecmanovic (June 29), Clement Tabur (May 26), Casper Ruud (May 17)
- Losses: Juan Manuel Cerundolo (May 28)
That’s 9 wins and 1 loss, seven of the nine wins on grass and the rest on clay. Worth flagging plainly: none of Sinner’s 10 most recently logged matches are on hard courts, even though hard carries his largest surface sample overall (47 matches). That tells you something about which matches our log happened to capture most recently for him, not that he hasn’t played hard-court tennis since July — treat “recent matches” here as the last 10 entries in our tracked data, not a live schedule.
Elena Rybakina: No. 1 overall, No. 1 on hard by a clear margin
Elena Rybakina’s overall Elo rating is 2040, the highest on the WTA side, built from 121 logged matches — the largest overall sample of any player discussed in this article.
| Surface | Elo Rating | Logged Matches | Surface Rank (WTA) |
|---|---|---|---|
| Overall | 2040 | 121 | No. 1 |
| Hard | 2033 | 79 | No. 1 |
| Clay | 1873 | 21 | No. 6 |
| Grass | 1688 | 14 | Not ranked |
Her hard-court number does the heaviest lifting toward that overall figure, and it’s not a close call at the top: 2033 leads Aryna Sabalenka’s 2018 by 15 points, on a hard-court sample of 79 matches — by far her largest surface split, and larger than any single surface number discussed for Sinner above. On the surface the tour is actually playing right now, our model rates Rybakina the strongest player in the WTA, full stop.
Clay is a different picture. Her 1873 rating there ranks sixth, well behind Mirra Andreeva’s leaderboard-topping 1955. And grass doesn’t appear on our surface leaderboard for her at all: her 1688 rating is built from just 14 logged matches, one short of the 15-match minimum our leaderboard requires before it will publish a surface ranking. The number exists on her player page — it’s simply not considered reliable enough by our own cutoff to rank against the field.
Rybakina’s recent record
Her 10 most recent logged matches, all on hard courts, run from August 17 to September 12, 2026:
- Wins: Aryna Sabalenka (Sept. 12), Cori Gauff (Sept. 10), Qinwen Zheng (Sept. 9), Naomi Osaka (Sept. 7), Yuliia Starodubtseva (Sept. 5), Jessica Bouzas Maneiro (Sept. 3), Thea Frodin (Sept. 1), Diana Shnaider (Aug. 19), Magdalena Frech (Aug. 17)
- Losses: Iga Swiatek (Aug. 20)
That’s 9 wins and 1 loss, including a win over Sabalenka — the player sitting directly behind her on the hard-court leaderboard — on September 12. Unlike Sinner’s log, Rybakina’s recent matches run right up through mid-September and sit entirely on the surface both tours are currently playing, which makes this stretch a more current read on her hard-court form than Sinner’s grass-and-clay-heavy recent log is for his.
What the two No. 1s have in common — and where they split
Both players hold the top overall Elo spot on their tour, and both also lead the hard-court leaderboard specifically — the surface actually in season right now. That’s not automatic: an overall No. 1 ranking blends three surfaces together, so there was no guarantee either player would also top the one surface that matters most at this point in the calendar. Both do.
Where they diverge is the third surface. Sinner’s weakest relative surface, grass, still clears the leaderboard’s publishing bar and puts him at a clear No. 2 behind Alcaraz. Rybakina’s weakest surface, also grass, doesn’t clear that bar at all — her sample there (14 matches) is thinner than any other number in this article, one match short of the cutoff this model uses to decide a rating is worth ranking. Two different tours, two players at the very top of each, and one clean similarity (both No. 1 on hard right now) alongside one real difference in how much we can say about their weakest surface.
It’s also worth contrasting this with what we found in Zverev and Kostyuk’s numbers (deep dive coming soon): both of those players saw every one of their surface ratings sit below their overall figure. Sinner and Rybakina don’t follow that pattern at all — Sinner’s clay rating (2000) sits below his overall (2132) but is still the tour’s best clay number, and Rybakina’s hard rating (2033) is barely below her overall (2040) while leading the entire WTA hard-court field. Being the overall Elo leader doesn’t automatically mean a player’s own surface numbers trail their overall figure the way it does further down a top 10 — at the very top, the overall rating and the best individual surface rating can be nearly the same number, because that surface is doing most of the work.
Turning any of this into a probability
None of the rankings above say anything about a specific opponent. A 100-point Elo gap corresponds to roughly a 60-65% win probability for the higher-rated player in a given matchup — useful shorthand, but it only applies once you’ve picked two actual players to compare on the same surface. Sinner’s 4-point hard-court edge over Alcaraz, for instance, is close to a coin flip by this model, nothing more. For an actual comparison between two named players, the Elo probability calculator converts a specific rating gap into a number instead of asking you to eyeball rank position.
What this data doesn’t show
Being No. 1 overall and No. 1 on a given surface says nothing about form heading into any specific tournament, injury status, or scheduling — this model only sees match results within its tracking window and converts them into a rating. It also can’t explain why Sinner’s grass rating lags his other two, or why Rybakina’s clay number sits so far below her hard-court figure; movement, surface speed adaptation, and simple variance in a smaller sample could each contribute, and this dataset doesn’t distinguish between them.
Sample size differences matter here too. Rybakina’s 79 hard-court matches and Sinner’s 47 are both solid samples; her 14-match grass number and his 14-match grass number are both thin by comparison, and neither should carry the same weight as their hard-court or clay figures. And as with every number on this site, these are current snapshots from a rolling window, not season-long averages or a prediction for either player’s next match.
Where to check the live numbers
The figures above are a snapshot from our September 27, 2026 training run. Both overall and surface Elo update on a rolling window, so check the full Elo leaderboard, the Elo movers page for how these ratings have shifted recently, or Sinner’s and Rybakina’s own player pages for current numbers. Neither this article nor any page it links to is a prediction for a specific upcoming match — it’s a form reference, current as of the training date stated above.
Frequently asked questions
- Is Jannik Sinner rated No. 1 on every surface, not just overall?
- Almost. He's No. 1 on our hard-court leaderboard (1951) and No. 1 on our clay leaderboard (2000), both by our September 27, 2026 training run. On grass he's No. 2, behind Carlos Alcaraz (1928 to Sinner's 1891). So two of his three surfaces match his overall No. 1 ranking, one doesn't.
- Is Elena Rybakina really the best hard-court player in the WTA right now?
- By this model's rating, yes — her hard-court Elo (2033) is the highest of any WTA player we track, ahead of Aryna Sabalenka (2018). But her clay rating (1873) only ranks sixth, and her grass rating (1688) doesn't appear on our surface leaderboard at all, because it's built from just 14 logged matches, below the 15-match minimum our leaderboard requires before publishing a surface ranking.
- Why doesn't Elena Rybakina have a published grass-court Elo ranking?
- Her grass rating exists on her player page (1688) but falls a single match short of the 15-match floor our surface leaderboard uses to filter out thin samples. That's not a judgment that she's bad on grass — it's a statement that 14 matches isn't enough logged data for us to publish a leaderboard-quality number.
- Why does Jannik Sinner's recent-match log show grass and clay matches, but no hard-court ones, if hard is his best-sampled surface?
- His 10 most recorded recent matches in our log run from May 17 to July 12, 2026 — seven on grass, three on clay — even though hard carries his largest surface sample overall (47 logged matches, versus 26 on clay and 14 on grass). That's a property of which matches our log has most recently captured for him, not a claim that he hasn't played hard-court matches since July. Treat 'recent matches' here as the last 10 entries in our data, not a live match ticker.
- Does being No. 1 overall and No. 1 on a surface mean a player is favored in their next match on that surface?
- No. Elo only produces a probability once you compare two specific players' ratings on the same surface — being No. 1 says nothing about a specific unnamed opponent. Our probability calculator converts an actual rating gap between two named players into a percentage, rather than asking you to guess from rank alone.