| Country | Czech Republic |
|---|---|
| Birth date | 17 May 1996 (age 30) |
| Birth place | Ostrava, Czech Republic |
| Height | 1.88 m (6.2 ft) |
| Plays | Right-handed (two-handed backhand) |
| Careerprizemoney | $173,995 |
| Singlesrecord | 0–0 (at ATP Tour level, Grand Slam level, and in Davis Cup) |
| Singlestitles | 6 ITF |
| Highestsinglesranking | No. 370 (21 March 2022) |
| Currentsinglesranking | No. 1,038 (23 February 2026) |
| Doublesrecord | 0–0 (at ATP Tour level, Grand Slam level, and in Davis Cup) |
| Doublestitles | 1 Challenger, 19 ITF |
| Highestdoublesranking | No. 172 (23 February 2026) |
| Currentdoublesranking | No. 172 (23 February 2026) |
| Updated | 23 February 2026 |
David Poljak (born 17 May 1996) is a Czech tennis player.
Poljak has a career high ATP singles ranking of No. 370 achieved on 21 March 2022 and a career high ATP doubles ranking of No. 172 achieved on 23 February 2026.[1]
Poljak scored couple of big wins in singles as he beat several former and future Top 50 players like Denis Istomin, Fabian Marozsan, Thomaz Bellucci, Andrey Golubev, Roman Safiullin, Flavio Cobolli, Illya Marchenko or grand slam doubles champions Andrea Vavassori and Sem Verbeek.
Poljak has won one ATP Challenger doubles title at the 2026 Tenerife Challenger II.
ATP Challenger Tour finals
| Result | W–L | Date | Tournament | Category | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Jul 2022 | Nur-Sultan, Kazakhstan | Challenger | Hard | Andrew Paulson | Nam Ji-sung Song Min-kyu | 2–6, 6–3, [6–10] |
| Loss | 0–2 | Jun 2025 | Troyes, France | Challenger | Clay | Tim Rühl | Mario Mansilla Díez Bruno Pujol Navarro | 63–7, 62–7 |
| Loss | 0–3 | Oct 2025 | Hersonissos, Greece | Challenger | Hard | Max Westphal | Alberto Barroso Campos Iñaki Montes de la Torre | 5–7, 63–7 |
| Loss | 0–4 | Nov 2025 | Bergamo, Italy | Challenger | Hard (i) | Tim Rühl | Joshua Paris Marcus Willis | 63–7, 4–6 |
| Win | 1–4 | Feb 2026 | Tenerife, Spain | Challenger | Hard | Filip Duda | Luka Mikrut Tiago Pereira | 7–60, 6–3 |
| Loss | 1–5 | May 2026 | Košice, Slovakia | Challenger | Clay | Lukáš Pokorný | Miloš Karol Nino Serdarušić | 7–5, 6–7(4–7), [5–10] |