# 2024 Ostra Group Open – Singles

Zdeněk Kolář was the defending champion but withdrew before his quarterfinal match against Timofey Skatov.
Damir Džumhur won the title after defeating Henri Squire 6–2, 4–6, 7–5 in the final.

## Seeds

* Damir Džumhur (champion)
* Gabriel Diallo (first round)
* Vitaliy Sachko (second round)
* Benjamin Bonzi (first round)
* Enzo Couacaud (second round, retired)
* Elias Ymer (first round)
* Henrique Rocha (first round)
* Lukas Neumayer (first round, retired)

## 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 | Final | Final | Final | Final | Final |
| 1 | Damir Džumhur | w/o | | | | | | |
| | Manuel Guinard | | | | | | | |
| | Manuel Guinard | | | 1 | Damir Džumhur | 6 | 4 | 7 |
| | | | | | Henri Squire | 2 | 6 | 5 |
| | Timofey Skatov | 3 | 4 | | Henri Squire | 2 | 6 | 5 |
| | Henri Squire | 6 | 6 | | | | | |

### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals |
| 1 | D Džumhur | 6 | 6 | | | | | | | | | | | | | | |
| | ND Ionel | 3 | 3 | | 1 | D Džumhur | 6 | 6 | | | | | | | | | |
| Q | Dominik Kellovský | 4 | 4 | | WC | PB Privara | 2 | 3 | | | | | | | | | |
| WC | Peter Benjamín Privara | 6 | 6 | | | | | | | 1 | D Džumhur | 6 | 5 | 6 | | | |
| | E Dalla Valle | 6 | 6 | | | | | | | | E Dalla Valle | 4 | 7 | 3 | | | |
| WC | Jan Jermář | 3 | 1 | | | E Dalla Valle | 6 | 6 | | | | | | | | | |
| | C-h Tseng | 4 | 6 | 6 | | C-h Tseng | 3 | 1 | | | | | | | | | |
| 6 | E Ymer | 6 | 4 | 3 | | | | | | | | | | | 1 | D Džumhur | w/o |
| 3 | V Sachko | 5 | 6 | 6 | | | | | | | | | | | | M Guinard | |
| Q | N Gombos | 7 | 2 | 3 | 3 | V Sachko | 7 | 3 | 4 | | | | | | | | |
| | J Faria | 6 | 6 | | | J Faria | 5 | 6 | 6 | | | | | | | | |
| Q | D Pichler | 1 | 4 | | | | | | | | J Faria | 3 | 6 | 5 | | | |
| | M Guinard | 7 | 7 | | | | | | | | M Guinard | 6 | 3 | 7 | | | |
| Q | Buvaysar Gadamauri | 5 | 5 | | | M Guinard | 4 | 7$^{13}$ | 0 | | | | | | | | |
| | J Veselý | 2 | 3 | | 5 | E Couacaud | 6 | 6$^{11}$ | 0$^r$ | | | | | | | | |
| 5 | E Couacaud | 6 | 6 | | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals |
| 7 | H Rocha | 6$^5$ | 0 | | | | | | | | | | | | |
| | D Rincón | 7$^7$ | 6 | | | D Rincón | 6$^3$ | 6 | 3 | | | | | | |
| | T Skatov | 6 | 6 | | | T Skatov | 7$^7$ | 3 | 6 | | | | | | |
| WC | J Kumstát | 1 | 2 | | | | | | | T Skatov | w/o | | | | |
| | M Kaśnikowski | 6 | 6$^2$ | 1 | | | | | | Z Kolář | | | | | |
| Q | Jakub Nicod | 1 | 7$^7$ | 6 | Q | J Nicod | 6$^5$ | 1$^r$ | | | | | | | |
| | Z Kolář | 4 | 6 | 6 | | Z Kolář | 7$^7$ | 2 | | | | | | | |
| 4 | B Bonzi | 6 | 4 | 4 | | | | | | | | | T Skatov | 3 | 4 |
| 8 | L Neumayer | 6 | 2 | 0$^r$ | | | | | | | | | H Squire | 6 | 6 |
| | D Novak | 4 | 6 | 3 | | D Novak | 7$^7$ | 6 | | | | | | | |
| | D Kuzmanov | 5 | 6$^4$ | | | G Onclin | 6$^3$ | 2 | | | | | | | |
| | G Onclin | 7 | 7$^7$ | | | | | | | D Novak | 3 | 2 | | | |
| | T Lamasine | 3 | 6 | 5 | | | | | | H Squire | 6 | 6 | | | |
| Q | J Sels | 6 | 4 | 7 | Q | J Sels | 6$^4$ | 2 | | | | | | | |
| | H Squire | 6 | 5 | 6 | | H Squire | 7$^7$ | 6 | | | | | | | |
| 2 | G Diallo | 2 | 7 | 4 | | | | | | | | | | | |