Žiga Šeško
| Country (sports) |  Slovenia |
|---|---|
| Residence | Bordighera, Italy |
| Born | 27 July 2008 |
| Height | 1.92 m (6 ft 4 in) |
| Plays | Right-handed (two-handed backhand) |
| Coach | Riccardo Piatti, Dejan Šeško |
| Prize money | US $21,007 |
| Singles | |
| Career record | 1–1 (at ATP Tour level, Grand Slam level, and in Davis Cup) |
| Career titles | 0 |
| Highest ranking | No. 696 (24 August 2026) |
| Current ranking | No. 696 (24 August 2026) |
| Grand Slam singles results | |
| Australian Open Junior | W (2026) |
| French Open Junior | QF (2026) |
| Wimbledon Junior | QF (2025) |
| US Open Junior | 1R (2025) |
| Doubles | |
| Career record | 0–1 (at ATP Tour level, Grand Slam level, and in Davis Cup) |
| Career titles | 0 |
| Highest ranking | No. 1,246 (8 June 2026) |
| Current ranking | No. 1,849 (24 August 2026) |
| Grand Slam doubles results | |
| Australian Open Junior | QF (2026) |
| French Open Junior | QF (2026) |
| Wimbledon Junior | W (2026) |
| US Open Junior | 1R (2025) |
| Last updated on: 25 August 2026. | |
Žiga Šeško (born 27 July 2008) is a Slovenian tennis player. He has a career-high ATP singles ranking of No. 696 achieved on 24 August 2026 and a doubles ranking of No. 1,246 achieved on 8 June 2026.[1] Šeško won the singles title at the 2026 Australian Open and the 2026 Wimbledon doubles title, becoming the first Slovenian player to win a Junior Grand Slam title.
Early life
Šeško was born and raised in Hrastnik, Slovenia. His father, Dejan Šeško, is a former table tennis player who introduced Žiga to tennis.[2] He is a distant relative of Slovenian professional footballer Benjamin Šeško; although the two do not know each other personally, their families originate from neighboring towns in the Zasavje region.[3]
Juniors
In December 2025, Šeško won the prestigious Orange Bowl in the boys' doubles, playing alongside Yannik Álvarez.
In January 2026, Šeško won the doubles category at J300 Traralgon International, Australia, with Luís Guto Miguel. His best result at junior-level came two weeks later, when he was crowned a champion at the Australian Open Boys' singles, with victories over second seed and doubles partner Luís Guto Miguel, third seed Ryo Tabata, and fourth seed Keaton Hance, winning the final in three sets, 4–6, 6–3, 6–4. Seeded seventh, he became the first Slovenian player in history to win a boys' final in either singles or doubles in any Grand Slam tournament.[4]
Šeško has good results on the ITF junior circuit, holding a singles win-loss record of 110–57 as of February 2026. He reached an ITF junior combined ranking of world No. 4 on 2 February 2026.[5]
Professional
Šeško reached his first professional singles final in November 2025 at the M15 tournament in San Gregorio di Catania, Italy. He defeated top seed Gabriele Pennaforti in the quarterfinals before losing the final to Gianmarco Ferrari in straight sets.[6]
He won his first doubles title in June 2024 at the M15 in Hrastnik, partnering with Nik Razboršek. He claimed his second title in June 2025 at the M15 Ljubljana, playing alongside Jan Kupčič. In 2026, Šeško was entered as a wildcard in the qualifying draw in Mallorca. He made his ATP debut having also received a wildcard for the main draw draw at the 2026 Croatia Open Umag.[7]
Personal life
Šeško trained at Gimnazija Litija (Litija Grammar School), completing his education remotely to accommodate his training schedule. He is based in Bordighera, Italy, where he trains at the Piatti Tennis Center under coach Riccardo Piatti.[2]
ITF World Tennis Tour finals
Singles: 3 (1 title, 2 runner-ups)
| Finals by surface |
|---|
| Hard (–) |
| Clay (1–2) |
| Result | W–L | Date | Tournament | Surface | Opponent | Score |
|---|---|---|---|---|---|---|
| Loss | 0–1 | Nov 2025 | M15 San Gregorio di Catania, Italy | Clay |  Gianmarco Ferrari |
4–6, 2–6 |
| Win | 1–1 | Jul 2026 | M15 Wels, Austria | Clay |  Erik Schiessl |
7–6(7–4), 6–4 |
| Loss | 1–2 | Aug 2026 | M15 Trier, Germany | Clay |  Michael Agwi |
2–6, 1–6 |
Doubles: 2 (2 titles)
| Finals by surface |
|---|
| Hard (–) |
| Clay (2–0) |
| Result | W–L | Date | Tournament | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|
| Win | 1–0 | Jun 2024 | M15 Hrastnik, Slovenia | Clay | Nik Razboršek |
Jan Kupčič Nikola Bašić |
7–6(7–4), 6–4 |
| Win | 2–0 | Jun 2025 | M15 Ljubljana, Slovenia | Clay | Jan Kupčič |
 Théo Papamalamis Glib Sekachov |
6–3, 6–3 |
Junior Grand Slam finals
Singles: 1 (title)
| Result | Year | Tournament | Surface | Opponent | Score |
|---|---|---|---|---|---|
| Win | 2026 | Australian Open | Hard |  Keaton Hance |
4–6, 6–3, 6–4 |
Doubles: 1 (title)
| Resu | Year | Tournament | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|
| Win | 2026 | Wimbledon | Grass |  Luís Guto Miguel |
Michael Antonius Andrew Johnson |
6–1, 6–4 |
National representation
Davis Cup: 2 (1 victory, 1 loss)
|
|
|
indicates the outcome of the Davis Cup match followed by the score, date, place of event, the zonal classification and its phase, and the court surface.
| Result | Rubber | Match type (partner if any) | Opponent nation | Opponent player(s) | Score |
|---|---|---|---|---|---|
| 4–1; 12–13 September 2025; Tennis Academy Breskvar, Ljubljana, Slovenia; World Group II; hard surface | |||||
| Win | IV | Singles |  Uruguay |
Francisco Llanes | 1–6, 7–6(7–4), 10–7 |
| 1–3; 6–7 February 2026; Bela dvorana, Velenje, Slovenia; World Group I play-offs; clay surface (i) | |||||
| Loss | III | Doubles (w Filip Jeff Planinšek) |
 Turkey |
Ergi Kırkın Kerem Yılmaz |
6–7(3–7), 3–6 |
References
- ↑ "Ziga Šeško Player Overview". ATP Tour. Retrieved 30 January 2026.
- 1 2 Rupret, Uroš (25 November 2023). "Žiga Šeško: Cilj je postati številka ena". Siol.net (in Slovenian). Retrieved 30 January 2026.
- ↑ "Šeško in Šeško: nogometni zvezdnik in teniški up, ki ju druži priimek in Zasavje". Ekipa24 (in Slovenian). 15 December 2024. Retrieved 30 January 2026.
- ↑ "Australian Open Junior Championships - Boys' Singles Results". ausopen.com. 29 January 2026. Retrieved 30 January 2026.
- ↑ "Ziga Sesko Junior Results". ITF Tennis. Retrieved 29 June 2026.
- ↑ "M15 San Gregorio di Catania - Tournament Results". ITF Tennis. Retrieved 30 January 2026.
- ↑ Šeško ITF Profile
External links
Association of Tennis Professionals Top Slovenian male singles tennis players | |
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As of Aug 24, 2026 | |
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