Philipp Oswald

Challengers

 * Doubles
 * 🇩🇪 Heilbronn (5 Jun 2023) – 🇩🇪 Constantin Frantzen / 🇩🇪 Hendrik Jebens def. 🇷🇴 Victor Vlad Cornea / 🇦🇹 Philipp Oswald, 7–6(9–7), 6–4.
 * 🇧🇦 Banja Luka (7 Aug 2023) – 🇷🇴 Victor Vlad Cornea / 🇦🇹 Philipp Oswald def. 🇰🇿 Andrey Golubev / 🇺🇦 Denys Molchanov, 3–6, 6–1, [15–13].

Doubles

 * 🇪🇸 Santa Ponsa (26 Jun 2023) – 🇮🇳 Yuki Bhambri / Lloyd Harris def.  Robin Haase / 🇦🇹 Philipp Oswald, 6–3, 6–4.

Grand Slam

 * Singles
 * Doubles