# 2023 Vitas Gerulaitis Cup – Singles

This was the first edition of the tournament.
Liam Broady won the title after defeating Zdeněk Kolář 6–4, 6–4 in the final.

## Seeds

* Dominic Stricker (first round)
* Elias Ymer (second round)
* Jurij Rodionov (second round)
* Dennis Novak (quarterfinals, retired)
* Jan-Lennard Struff (first round)
* Gijs Brouwer (first round)
* Vít Kopřiva (first round)
* Laurent Lokoli (second 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 | Final | Final | Final |
| WC | Cem İlkel | 2 | 3 | | | |
| | Zdeněk Kolář | 6 | 6 | | | |
| | Zdeněk Kolář | 6 | 6 | Zdeněk Kolář | 4 | 4 |
| | | | | Liam Broady | 6 | 6 |
| | Damir Džumhur | 1 | 3 | Liam Broady | 6 | 6 |
| | Liam Broady | 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 | Semifinals |
| 1 | D Stricker | 3 | 1 | | | | | | | | | | | | | | | |
| | J De Loore | 6 | 6 | | | J De Loore | 6 | 6 | | | | | | | | | | |
| Q | D Yevseyev | 6 | 6 | | Q | D Yevseyev | 3 | 4 | | | | | | | | | | |
| Q | J Ocleppo | 2 | 2 | | | | | | | | J De Loore | 6 | 6$^5$ | 5 | | | | |
| Alt | N Serdarušić | 2 | 4 | | | | | | | WC | C İlkel | 4 | 7$^7$ | 7 | | | | |
| WC | C İlkel | 6 | 6 | | WC | C İlkel | 6 | 6 | | | | | | | | | | |
| Alt | K Żuk | 6 | 2 | 5 | 8 | L Lokoli | 3 | 2 | | | | | | | | | | |
| 8 | L Lokoli | 0 | 6 | 7 | | | | | | | | | | | WC | C İlkel | 2 | 3 |
| 3 | J Rodionov | 6 | 6 | | | | | | | | | | | | | Z Kolář | 6 | 6 |
| Alt | M Geerts | 2 | 3 | | 3 | J Rodionov | 4 | 6 | 1 | | | | | | | | | |
| | Z Kolář | 7$^7$ | 6 | | | Z Kolář | 6 | 1 | 6 | | | | | | | | | |
| Q | D Masur | 6$^3$ | 4 | | | | | | | | Z Kolář | 6 | 4 | 6 | | | | |
| | A Escoffier | 1 | 7 | 7$^7$ | | | | | | | A Escoffier | 3 | 6 | 4 | | | | |
| WC | E Butvilas | 6 | 5 | 6$^5$ | | A Escoffier | 6 | 0 | | | | | | | | | | |
| | O Virtanen | 6 | 7$^7$ | | | O Virtanen | 2 | 0$^r$ | | | | | | | | | | |
| 6 | G Brouwer | 4 | 6$^1$ | | | | | | | | | | | | | | | |

### 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 |
| 5 | J-L Struff | 3 | 4 | | | | | | | | | | | | | |
| Q | E Gerasimov | 6 | 6 | | Q | E Gerasimov | 1 | 3 | | | | | | | | |
| | H Laaksonen | 2 | 0$^r$ | | | D Džumhur | 6 | 6 | | | | | | | | |
| | D Džumhur | 6 | 0 | | | | | | | | D Džumhur | 2 | 4 | | | |
| | R Berankis | 2 | 6 | 6 | | | | | | 4 | D Novak | 6 | 4$^r$ | | | |
| | A Çelikbilek | 6 | 2 | 4 | | R Berankis | 6 | 3 | 2 | | | | | | | |
| | A Ritschard | 4 | 3 | | 4 | D Novak | 1 | 6 | 6 | | | | | | | |
| 4 | D Novak | 6 | 6 | | | | | | | | | | | D Džumhur | 1 | 3 |
| 7 | V Kopřiva | 4 | 2 | | | | | | | | | | | L Broady | 6 | 6 |
| | E Furness | 6 | 6 | | | E Furness | 3 | 7 | 6 | | | | | | | |
| Q | E Kırkın | 7 | 6$^4$ | 7$^7$ | Q | E Kırkın | 6 | 5 | 0 | | | | | | | |
| Q | M Rosenkranz | 5 | 7$^7$ | 6$^2$ | | | | | | | E Furness | 0 | 0$^r$ | | | |
| | L Broady | 6 | 6 | | | | | | | | L Broady | 6 | 1 | | | |
| Alt | M Moraing | 3 | 1 | | | L Broady | 6 | 6 | | | | | | | | |
| WC | V Gaubas | 6 | 6$^5$ | 4 | 2 | E Ymer | 3 | 1 | | | | | | | | |
| 2 | E Ymer | 4 | 7$^7$ | 6 | | | | | | | | | | | | |