# 2025 Adelaide International – Men's singles

Félix Auger-Aliassime defeated Sebastian Korda in the final, 6–3, 3–6, 6–1 to win the men's singles tennis title at the 2025 Adelaide International. It was his sixth ATP Tour singles title and his first outside of indoor hardcourts.
Jiří Lehečka was the reigning champion, but withdrew before the start of the tournament.

## Seeds

The top four seeds received a bye into the second round.
* Tommy Paul (semifinals)
* Sebastian Korda (final)
* Tomáš Macháč (withdrew)
* Jiří Lehečka (withdrew)
* Félix Auger-Aliassime (champion)
* Alexander Bublik (first round)
* Brandon Nakashima (second round)
* Tomás Martín Etcheverry (second round)
* Zhang Zhizhen (first round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 1 | Tommy Paul | 6$^3$ | 6 | 4 | | | | | |
| 5 | Félix Auger-Aliassime | 7$^7$ | 3 | 6 | | | | | |
| 5 | Félix Auger-Aliassime | 7$^7$ | 3 | 6 | 5 | Félix Auger-Aliassime | 6 | 3 | 6 |
| | | | | | 2 | Sebastian Korda | 3 | 6 | 1 |
| | Miomir Kecmanović | 3 | 6$^4$ | | 2 | Sebastian Korda | 3 | 6 | 1 |
| 2 | Sebastian Korda | 6 | 7$^7$ | | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | 1 | T Paul | 6 | 3 | 6 | | | | | | | | | |
| LL | M Guinard | 7$^7$ | 2 | 6 | LL | M Guinard | 4 | 6 | 3 | | | | | | | | | |
| | R Safiullin | 6$^4$ | 6 | 1 | | | | | | 1 | T Paul | 6 | 6 | | | | | |
| | D Goffin | 1 | 2 | | | | | | | LL | R Hijikata | 3 | 4 | | | | | |
| LL | R Hijikata | 6 | 6 | | LL | R Hijikata | 6 | 3 | 7$^7$ | | | | | | | | | |
| Q | Y Hanfmann | 1 | 6 | 3 | 7 | B Nakashima | 2 | 6 | 6$^5$ | | | | | | | | | |
| 7 | B Nakashima | 6 | 2 | 6 | | | | | | | | | | 1 | T Paul | 6$^3$ | 6 | 4 |
| | | | | | | | | | | | | | | 5 | F Auger-Aliassime | 7$^7$ | 3 | 6 |
| | | | | | 5 | F Auger-Aliassime | 1 | 6 | 7 | | | | | | | | | |
| | A Cazaux | 7 | 6 | | | A Cazaux | 6 | 4 | 5 | | | | | | | | | |
| Q | A Walton | 5 | 1 | | | | | | | 5 | F Auger-Aliassime | 7$^7$ | 6 | | | | | |
| | A Vukic | 2 | 6 | 3 | | | | | | | M Giron | 6$^3$ | 3 | | | | | |
| | M Giron | 6 | 3 | 6 | | M Giron | 7 | 6 | | | | | | | | | | |
| | D Shapovalov | 6 | 6 | | | D Shapovalov | 5 | 2 | | | | | | | | | | |
| 9 | Z Zhang | 3 | 4 | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | A Bublik | 4 | 2 | | | | | | | | | | | | | | |
| | M Kecmanović | 6 | 6 | | | M Kecmanović | 7$^7$ | 6 | | | | | | | | | |
| | A Rinderknech | 5 | 6$^5$ | | | C O'Connell | 6$^1$ | 2 | | | | | | | | | |
| | C O'Connell | 7 | 7$^7$ | | | | | | | | M Kecmanović | 6 | 6 | | | | |
| Q | J Duckworth | 1 | 5 | | | | | | | Q | B Bonzi | 2 | 3 | | | | |
| WC | L Tu | 6 | 7 | | WC | L Tu | 3 | 3 | | | | | | | | | |
| | | | | | Q | B Bonzi | 6 | 6 | | | | | | | | | |
| | | | | | | | | | | | | | | | M Kecmanović | 3 | 6$^4$ |
| 8 | TM Etcheverry | 7$^{10}$ | 6 | | | | | | | | | | | 2 | S Korda | 6 | 7$^7$ |
| WC | T Schoolkate | 6$^8$ | 3 | | 8 | TM Etcheverry | 5 | 6 | 6$^4$ | | | | | | | | |
| | Y Nishioka | 3 | 6 | 3 | WC | T Kokkinakis | 7 | 4 | 7$^7$ | | | | | | | | |
| WC | T Kokkinakis | 6 | 3 | 6 | | | | | | WC | T Kokkinakis | | | | | | |
| | R Bautista Agut | 5 | 2 | | | | | | | 2 | S Korda | w/o | | | | | |
| | A Davidovich Fokina | 7 | 6 | | | A Davidovich Fokina | 3 | 3 | | | | | | | | | |
| | | | | | 2 | S Korda | 6 | 6 | | | | | | | | | |

## Qualifying
### Seeds

* Yoshihito Nishioka (moved to main draw)
* Quentin Halys (first round, retired)
* Rinky Hijikata (qualifying competition, lucky loser)
* Benjamin Bonzi (qualified)
* Hugo Gaston (first round)
* Dušan Lajović (first round)
* James Duckworth (qualified)
* Damir Džumhur (first round)

### Qualifiers

* Yannick Hanfmann
* James Duckworth
* Adam Walton
* Benjamin Bonzi

### Lucky losers

* Rinky Hijikata
* Manuel Guinard

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| Alt | Manuel Guinard | 7 | 6 | | | | | |
| | Taro Daniel | 5 | 4 | | | | | |
| | Taro Daniel | 5 | 4 | | Alt | Manuel Guinard | 6$^1$ | 3 |
| | | | | | | Yannick Hanfmann | 7$^7$ | 6 |
| | Yannick Hanfmann | 3 | 7$^7$ | 6 | | Yannick Hanfmann | 7$^7$ | 6 |
| 5 | Hugo Gaston | 6 | 6$^2$ | 2 | | | | |

#### Second qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Quentin Halys | 2$^r$ | | | | | | |
| WC | Jacob Bradshaw | 2 | | | | | | |
| WC | Jacob Bradshaw | 2 | | | WC | Jacob Bradshaw | 2 | 2 |
| | | | | | 7 | James Duckworth | 6 | 6 |
| | Pavel Kotov | 6$^3$ | 7$^9$ | 6$^5$ | 7 | James Duckworth | 6 | 6 |
| 7 | James Duckworth | 7$^7$ | 6$^7$ | 7$^7$ | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Rinky Hijikata | 6 | 2 | | | | | | |
| Alt | Omar Jasika | 0 | 1$^r$ | | | | | | |
| Alt | Omar Jasika | 0 | 1$^r$ | | 3 | Rinky Hijikata | 6 | 6$^4$ | 4 |
| | | | | | | Adam Walton | 1 | 7$^7$ | 6 |
| | Adam Walton | 6 | 4 | 6 | | Adam Walton | 1 | 7$^7$ | 6 |
| 6 | Dušan Lajović | 4 | 6 | 3 | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Benjamin Bonzi | 3 | | | | | | | |
| | Fabio Fognini | 2$^r$ | | | | | | | |
| | Fabio Fognini | 2$^r$ | | | 4 | Benjamin Bonzi | 6 | 4 | 6 |
| | | | | | WC | James McCabe | 3 | 6 | 3 |
| WC | James McCabe | 6 | 3 | 7 | WC | James McCabe | 3 | 6 | 3 |
| 8 | Damir Džumhur | 4 | 6 | 5 | | | | | |