Swiatek's physio told her three times to stop. Now a Ningbo title alone is not enough
Our take Tokyo, not Ningbo, decides Swiatek's season
Tennis · WTA · China Open, Beijing · WTA 1000 · Quarter-final · Hard
Iga SwiatekvsElise Mertens prediction · China Open 2026
Date
9 OCT
Court
Capital Group Diamond
Order of play
Third match on court, not before 7:00 PM, not before 19:00 local (12:00 UK)
Status
6:7 3:6
Analysis onlySWI12:00 UKMERAnalysis only
No. 01 · The short versionAnalysis
Who will win Swiatek vs Mertens?
Iga Swiatek plays Elise Mertens in the China Open quarter-final in Beijing. We expect Swiatek to win in two sets, most likely 6:4, 6:3, but we are not betting on it.
- Predicted score
- 2:0
- Our pick
- 78–82%
- Our pick
- Iga Swiatek win
- Odds at publish
- 1.20
- Set by set
- 6:4, 6:3
- Not before (UK)
- 12:00
Swiatek vs Mertens at a glance
| Match | Iga Swiatek vs Elise Mertens |
|---|---|
| Tournament | WTA · China Open, Beijing · Quarter-final |
| Surface | Hard |
| Start | 9 OCT · 12:00 UK · 19:00 local |
| Court | Capital Group Diamond · Third match on court, not before 7:00 PM |
| Our pick | Iga Swiatek win · 1.20 · analysis only |
| Our estimate | 78–82% |
| Predicted score | 2:0 (6:4, 6:3) |
| Main reason | Swiatek leads 2-0 without losing a set: 6:3, 6:4 in Stuttgart on clay in 2024 and 7:6, 6:1 in Miami on a hard court in 2025. |
No. 02 · Form
Swiatek vs Mertens: recent form
Mertens beat Gauff 6:3, 6:3; Swiatek has won three matches in Beijing
Iga SwiatekLast 10: 8-2
- Won v Parry D. 6-3, 6-3
- Won v Rybakina E. 4-1 ret.
- Lost to Pegula J. 7-5, 4-6, 6-4
- Won v Wang X. 6-2, 6-3
- Won v Podoroska N. 6-3, 6-2
- Won v Bouzkova M. 7-6(3), 7-6(3)
- Lost to Zheng Q. 7-5, 6-3
- Won v Gao X. 6-2, 6-3
- Won v Vekic D. 4-6, 7-6(0), 6-2
- Won v Jovic I. 6-1, 6-3
Elise MertensLast 10: 6-3
- Won v Bartunkova N. 1-6, 6-4, 6-2
- Lost to Parry D. 6-4, 0-6, 6-3
- Won v Quevedo K. 6-4, 6-4
- Won v Timofeeva M. 6-2, 7-6(5)
- Lost to Osaka N. 6-3, 3-6, 7-5
- Lost to Chwalinska M. 6-2, 6-2
- Won v Volynets K. 6-0, 4-6, 7-5
- Won v Ostapenko J. 6-2, 3-6, 6-3
- Won v Gauff C. 6-3, 6-3
Last ten results, oldest to newest; the ringed one is the latest. Tap a result for the opponent and score.
Show the matches
| Won v | Jovic I.Beijing · 07.10.26 | 6-1, 6-3 |
| Won v | Vekic D.Beijing · 05.10.26 | 4-6, 7-6(0), 6-2 |
| Won v | Gao X.Beijing · 03.10.26 | 6-2, 6-3 |
| Lost to | Zheng Q.US Open · 07.09.26 | 7-5, 6-3 |
| Won v | Bouzkova M.US Open · 05.09.26 | 7-6(3), 7-6(3) |
| Won v | Podoroska N.US Open · 03.09.26 | 6-3, 6-2 |
| Won v | Wang X.US Open · 01.09.26 | 6-2, 6-3 |
| Lost to | Pegula J.Cincinnati WTA · 22.08.26 | 7-5, 4-6, 6-4 |
| Won v | Rybakina E.Cincinnati WTA · 21.08.26 | 4-1 ret. |
| Won v | Parry D.Cincinnati WTA · 19.08.26 | 6-3, 6-3 |
| Won v | Gauff C.Beijing · 07.10.26 | 6-3, 6-3 |
| Won v | Ostapenko J.Beijing · 05.10.26 | 6-2, 3-6, 6-3 |
| Won v | Volynets K.Beijing · 03.10.26 | 6-0, 4-6, 7-5 |
| Lost to | Chwalinska M.Singapore WTA · 25.09.26 | 6-2, 6-2 |
| Lost to | Osaka N.US Open · 06.09.26 | 6-3, 3-6, 7-5 |
| Won v | Timofeeva M.US Open · 03.09.26 | 6-2, 7-6(5) |
| Won v | Quevedo K.US Open · 01.09.26 | 6-4, 6-4 |
| Lost to | Parry D.Monterrey · 30.08.26 | 6-4, 0-6, 6-3 |
| Won v | Bartunkova N.Monterrey · 29.08.26 | 1-6, 6-4, 6-2 |
Head-to-headSwiatek leads 2-0 without losing a set: 6:3, 6:4 in Stuttgart on clay in 2024 and 7:6, 6:1 in Miami on a hard court in 2025.
No. 03 · Context
Swiatek leads the head-to-head 2-0 without dropping a set
- Swiatek in Beijing
- She beat Gao Xinyu 6:2, 6:3, Donna Vekic 4:6, 7:6, 6:2 and Iva Jovic 6:1, 6:3. Before Beijing she lost to Zheng Qinwen 5:7, 3:6 in the fourth round of the US Open, and to Jessica Pegula in the Cincinnati semi-final.
- Mertens in Beijing
- She beat Kateryna Volynets 6:0, 4:6, 7:5, Jelena Ostapenko 6:2, 3:6, 6:3 and then Coco Gauff 6:3, 6:3, two of those three matches in three sets. Before Beijing she lost in the Singapore quarter-final and in the third round of the US Open to Naomi Osaka.
- The season
- Swiatek is 39-14 this season and 28-8 on hard courts; Mertens is 34-19 and 21-11. Mertens is 3-10 this year when the odds make her the underdog.
In the news
Muchova is 10-0 in tiebreaks. Shnaider beat her without needing one
Our take The last seat is now Swiatek's to take
Gauff pulls out of Wuhan, the title she won last year, to rest before the WTA Finals
Our take Losing 1,000 points is the smart choice
No. 04 · Stats comparison
Swiatek wins 47% of her return games, Mertens 36%
| Stat | Swiatek | Mertens |
|---|---|---|
| Ranking | No. 9 (better) | No. 19 |
| Season record | 39-14 (better) | 34-19 |
| On hard courts | 28-8 (better) | 21-11 |
| Last 10 matches | 8-2 (better) | 7-3 |
| As favourite | 39-13 | 31-9 (better) |
| As underdog | 0-1 | 3-10 (better) |
| Stat | Swiatek | Mertens |
|---|---|---|
| Matches | 50 | 48 |
| Aces per match | 2.0 | 4.3 (better) |
| Double faults per match | 3.0 (better) | 4.2 |
| 1st serve in | 65.9% (better) | 58.8% |
| 1st serve points won | 66.6% | 70.1% (better) |
| 2nd serve points won | 50.0% (better) | 46.0% |
| Service games held | 72.8% (better) | 72.4% |
| Break points saved | 59.7% (better) | 57.2% |
| Stat | Swiatek | Mertens |
|---|---|---|
| Return points won | 48.5% (better) | 44.0% |
| Return games won | 47.4% (better) | 36.0% |
| Break points converted | 50.9% (better) | 46.9% |
Form rows: 2026 season to 8 October. Serve and return: WTA official 2026 season statistics. We read the data from Tennis Explorer, Tennis Abstract and the WTA and ATP tours, and form our own view.
No. 05 · Head to head2 meetings
Swiatek leads 2-0
| 2025 | SwiatekMiami · Hard · R32 | 7-6(2) 6-1 |
| 2024 | SwiatekStuttgart · Clay · R16 | 6-3 6-4 |
No. 06 · What others predictConsensus 3 of 3
Who do others back in Swiatek vs Mertens?
| Source | Their view | Versus us |
|---|---|---|
| Dimers (model) | Swiatek to win, 80% | Same side |
| Last Word On Tennis | Swiatek in three sets | Same side |
| Tennis Abstract hard-court Elo | Swiatek about 79% | Same side |
Our position3 of 3 back Swiatek. We are on Swiatek’s side.
No. 07 · Scenario & score
Swiatek vs Mertens predicted score
Swiatek in two, through her return
Both hold serve about 72% of the time this season, so the match turns on the return. Swiatek wins 47% of her return games against 36% for Mertens, and Mertens wins only 46% of her second-serve points. We expect two or three breaks a set for Swiatek and a 6:4, 6:3 win; if Mertens serves as she did against Gauff, a three-set win for Swiatek is the alternative.
- Predicted score
- 2:0
- 6:4, 6:3
- Alternative
- 2:1
No. 08 · Our pick
Our Swiatek vs Mertens pick: Iga Swiatek win
Our pick: Swiatek, analysis only
Why analysis only
Swiatek should win, but a heavy WTA favourite is not a result we stake on when the opponent is in her best form of the autumn, and a games handicap on Swiatek loses if she needs three sets.
Our pick78–82%
Our pickIga Swiatek win
Odds1.20
Main scenario2:0
- Our scenario
- 6:4, 6:32:0 in sets
What would change our mind Any news on Swiatek’s fitness before the match.
No. 09 · Arguing against ourselves
What could beat our pick?
- Mertens has just beaten Gauff 6:3, 6:3 as a clear underdog.
- Swiatek lost to Zheng at the US Open as the favourite and dropped a set to Vekic in Beijing.
- Swiatek holds serve in 72.8% of her service games this season, almost the same as Mertens.