2026 WTA Japan Open Final Results: Siniakova Cruises to Sixth Singles Title
Katerina Siniakova dominated Ashlyn Krueger 6–1, 6–0 to win the 2026 WTA Japan Open singles title, taking 10 consecutive games to secure the sixth WTA singles trophy of her career. In doubles, top seeds Storm Hunter and Janice Tjen defeated Jesika Maleckova and Miriam Skoch 6–4, 6–1, giving Hunter her long-awaited first Osaka title and adding another major doubles success to Tjen’s breakthrough career.
Katerina Siniakova produced one of the most dominant championship performances of the 2026 WTA season on Sunday, October 25, defeating Ashlyn Krueger 6–1, 6–0 to win the Kinoshita Group Japan Open in Osaka.
Siniakova needed only 64 minutes to complete the victory. After moving ahead 2–1 in the opening set, the Czech won the final 10 games in a row, giving Krueger no opportunity to work her way back into the final. The championship was Siniakova’s sixth career WTA Tour singles title.
The WTA 250 tournament was played from October 19–25 on outdoor hard courts at Utsubo Tennis Center in Osaka. The event featured a 32-player singles draw and 16-team doubles draw, with a total financial commitment of $283,347.
2026 WTA Japan Open Final Results
| Event | Champions | Runners-up | Final Score |
|---|---|---|---|
| Women’s Singles | Katerina Siniakova (CZE) | Ashlyn Krueger (USA) | 6–1, 6–0 |
| Women’s Doubles | Storm Hunter (AUS) / Janice Tjen (INA) | Jesika Maleckova (CZE) / Miriam Skoch (CZE) | 6–4, 6–1 |
Siniakova Wins 10 Straight Games to Take the Title
The singles final was competitive for only a short period.
Krueger held one of her opening service games to trail 2–1, but from that point Siniakova completely took over.
The Czech reeled off 10 consecutive games, closing the first set 6–1 and then delivering a bagel in the second. The match was over after just 1 hour and 4 minutes.
The result was particularly impressive because Krueger was no stranger to success in Osaka.
The American won the Japan Open as a 19-year-old in 2023, capturing her first WTA title without dropping a set during the tournament. Three years later, she returned to the championship match but was unable to stop Siniakova’s surge.
Sixth WTA Singles Title for Siniakova
Siniakova is best known as one of the leading doubles players of her generation, but the Osaka victory added another important achievement to her singles career.
Before Japan, she had won five tour-level singles titles:
- Shenzhen – 2017
- Bastad – 2017
- Portoroz – 2022
- Bad Homburg – 2023
- Nanchang – 2023
Osaka therefore became her sixth WTA singles championship and first since the 2023 season.
The trophy also capped another remarkable year for Siniakova across both disciplines. She arrived in Osaka as one of the world’s leading doubles players, having already collected major and WTA 1000 doubles trophies during 2026.
Katerina Siniakova’s Road to the 2026 Japan Open Title
Siniakova entered the singles draw unseeded and had to begin against No. 2 seed Peyton Stearns.
| Round | Opponent | Result |
|---|---|---|
| First Round | Peyton Stearns [2] (USA) | 6–4, 0–6, 4–0 ret. |
| Second Round | Magda Linette (POL) | 6–4, 6–1 |
| Quarterfinal | Mary Stoiana (USA) | 6–1, 6–2 |
| Semifinal | Katie Boulter [8] (GBR) | 6–1, 6–4 |
| Final | Ashlyn Krueger (USA) | 6–1, 6–0 |
Her first-round match was her most unusual.
Siniakova won the opening set against Stearns 6–4 before the American responded with a 6–0 second set. Siniakova then raced to a 4–0 lead in the decider before Stearns retired.
From that point, Siniakova did not lose another set.
She defeated Magda Linette 6–4, 6–1, qualifier Mary Stoiana 6–1, 6–2, and eighth seed Katie Boulter 6–1, 6–4 before producing her most one-sided victory of the week against Krueger.
Across her final four matches, Siniakova dropped only 15 games in eight sets.
Krueger Falls Short of Second Osaka Title
Although the final was one-sided, Krueger’s return to the Osaka championship match represented another strong performance at a tournament with special significance in her career.
She won her maiden WTA Tour singles title at the Japan Open in 2023, defeating Zhu Lin in the final.
In 2026, Krueger reached the final after beating top seed Ann Li 6–4, 6–7(4), 6–3 in the semifinals.
That put her one victory away from becoming a two-time champion in Osaka, but Siniakova’s precision and consistency proved too much on Sunday.
Hunter and Tjen Win the Japan Open Doubles Title
The doubles championship went to the tournament’s No. 1 seeds, Storm Hunter and Janice Tjen, who defeated Czech pair Jesika Maleckova and Miriam Skoch 6–4, 6–1.
Hunter and Tjen needed just 67 minutes to complete the final. Their serving was particularly impressive: they did not face a single break point and won 32 of 43 points on serve.
The first set remained relatively close, but Hunter and Tjen found the decisive breakthrough to take it 6–4.
From there, they pulled away.
The Australian-Indonesian combination dominated the second set 6–1 to complete a straight-sets championship victory.
Third Time Lucky for Storm Hunter in Osaka
The Osaka trophy was particularly satisfying for Hunter.
The Australian had previously reached the Japan Open doubles final twice, in 2017 and 2025, but lost both matches in deciding Match Tie-breaks.
Her third opportunity finally ended with the trophy.
Hunter also became the first Australian woman to win the Japan Open doubles title.
It was her 11th career WTA doubles championship and second title of 2026, following her victory in Austin alongside Taylor Townsend in March.
The result continued a strong finish to Hunter’s season. Just one week earlier, she had reached the WTA 1000 Wuhan final alongside Siniakova — the player who would win the singles title in Osaka.
Another Doubles Trophy for Janice Tjen
The championship also continued Janice Tjen’s rapid progress on the WTA Tour.
The Indonesian entered Osaka as the No. 6 seed in singles but was beaten 6–4, 6–4 by Krueger in the first round. Her tournament continued in doubles, where she and Hunter were installed as the top seeds.
Tjen already had tour-level doubles titles on her résumé, including victories in Chennai and Guangzhou in 2025 and Hobart in 2026. The Osaka trophy added another title to that growing collection.
For Indonesian tennis, it was another significant result in a breakout period for Tjen, who had already established herself on the WTA Tour in both singles and doubles.
Hunter and Tjen’s Road to the Doubles Title
The top seeds started emphatically but had to survive two Match Tie-breaks before reaching the final.
| Round | Opponents | Result |
|---|---|---|
| First Round | Ingrid Martins / Sara Sorribes Tormo | 6–2, 6–2 |
| Quarterfinal | Ya-Hsin Lee / Fang-Hsien Wu | 4–6, 6–3, [10–6] |
| Semifinal | Isabelle Haverlag / Lilli Tagger | 6–2, 5–7, [10–8] |
| Final | Jesika Maleckova / Miriam Skoch | 6–4, 6–1 |
Their opening victory was comfortable, with Hunter and Tjen beating Martins and Sorribes Tormo 6–2, 6–2.
The quarterfinal was much more difficult.
After dropping the first set against Lee and Wu, the top seeds responded to take the second before winning the deciding Match Tie-break 10–6.
Another tight contest followed in the semifinals. Hunter and Tjen won the first set against Haverlag and Tagger 6–2, lost the second 5–7, then edged the Match Tie-break 10–8 to reach the championship match.
After two consecutive three-set battles, they saved their most convincing serving performance for the final.
Defending Champions Do Not Return
The Japan Open crowned new champions in both events.
Defending singles champion Leylah Fernandez, who won Osaka in 2025, did not return to defend her title and instead competed at the WTA 500 event in Ningbo. The Canadian went all the way to the Ningbo final.
In doubles, reigning champions Kristina Mladenovic and Taylor Townsend also did not reunite for a title defense, leaving Osaka guaranteed to crown a new championship team.
Hunter and Tjen eventually took advantage and finished the week as the No. 1 seeds and champions.
2026 WTA Japan Open Prize Money and Ranking Points
The 2026 Japan Open carried a total financial commitment of $283,347.
Siniakova earned $37,390 and 250 WTA ranking points for the singles title, while Krueger received $22,125 and 163 points as runner-up.
| Result | Prize Money | WTA Points |
|---|---|---|
| Singles Champion – Katerina Siniakova | $37,390 | 250 |
| Singles Runner-up – Ashlyn Krueger | $22,125 | 163 |
| Singles Semifinalist | $12,331 | 98 |
| Singles Quarterfinalist | $7,025 | 54 |
| Doubles Champions – Hunter / Tjen | $13,600 per team | 250 |
| Doubles Runners-up – Maleckova / Skoch | $7,650 per team | 163 |
The doubles champions shared $13,600, while Maleckova and Skoch earned $7,650 as finalists.
2026 WTA Japan Open Champions
Singles Champion: Katerina Siniakova (CZE)
Runner-up: Ashlyn Krueger (USA)
Final: 6–1, 6–0
Doubles Champions: Storm Hunter (AUS) / Janice Tjen (INA)
Runners-up: Jesika Maleckova (CZE) / Miriam Skoch (CZE)
Final: 6–4, 6–1
For Siniakova, Osaka marked a welcome return to the winner’s circle in singles. After building one of the most decorated doubles careers on Tour, she reminded the field of her ability in singles by winning four consecutive straight-set matches to finish the tournament — capped by a final in which she surrendered only one game.
Hunter and Tjen, meanwhile, combined experience and emerging talent to secure the doubles crown. Hunter finally won the Osaka title after two previous runner-up finishes, while Tjen added another WTA trophy to a career that continues to rise rapidly for Indonesian tennis.
