# 2024 Open de Oeiras II – Singles

Francisco Comesaña was the defending champion but chose not to defend his title.
Jaime Faria won the title after defeating Elias Ymer 3–6, 7–6$^{(7–3)}$, 6–4 in the final.

## Seeds

* Alex Michelsen (second round)
* Zachary Svajda (first round)
* Emilio Nava (second round)
* Vít Kopřiva (second round)
* Lloyd Harris (second round)
* Román Andrés Burruchaga (semifinals)
* Patrick Kypson (second round)
* Shintaro Mochizuki (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 |
| WC | Jaime Faria | 6 | 6$^5$ | 6 | | | | | |
| 6 | Román Andrés Burruchaga | 4 | 7$^7$ | 1 | | | | | |
| 6 | Román Andrés Burruchaga | 4 | 7$^7$ | 1 | WC | Jaime Faria | 3 | 7$^7$ | 6 |
| | | | | | | Elias Ymer | 6 | 6$^3$ | 4 |
| | Denis Yevseyev | 5 | 2 | | | Elias Ymer | 6 | 6$^3$ | 4 |
| | Elias Ymer | 7 | 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 | Semifinals |
| 1 | A Michelsen | 4 | 6 | 6 | | | | | | | | | | | | | | | |
| WC | H Rocha | 6 | 3 | 4 | 1 | A Michelsen | 6$^3$ | 4 | | | | | | | | | | | |
| | D Novak | 6 | 1 | | | D Novak | 7$^7$ | 6 | | | | | | | | | | | |
| Q | D Added | 0 | 0$^r$ | | | | | | | | D Novak | 6 | 4 | 0 | | | | | |
| | G Heide | 6 | 6 | | | | | | | WC | J Faria | 2 | 6 | 6 | | | | | |
| Q | D Popko | 1 | 2 | | | G Heide | 4 | 4 | | | | | | | | | | | |
| WC | J Faria | 6 | 6 | | WC | J Faria | 6 | 6 | | | | | | | | | | | |
| 8 | S Mochizuki | 2 | 4 | | | | | | | | | | | | WC | J Faria | 6 | 6$^5$ | 6 |
| 4 | V Kopřiva | 6 | 7 | | | | | | | | | | | | 6 | RA Burruchaga | 4 | 7$^7$ | 1 |
| Q | JP Ficovich | 2 | 5 | | 4 | V Kopřiva | 4 | 6 | 3 | | | | | | | | | | |
| WC | G Elias | 4 | 6 | 3 | | J De Loore | 6 | 1 | 6 | | | | | | | | | | |
| | J De Loore | 6 | 4 | 6 | | | | | | | J De Loore | 3 | 0$^r$ | | | | | | |
| | JM Cerúndolo | 6 | 6$^2$ | 0$^r$ | | | | | | 6 | RA Burruchaga | 6 | 2 | | | | | | |
| | D Svrčina | 4 | 7$^7$ | 2 | | D Svrčina | 3 | 4 | | | | | | | | | | | |
| Q | A Andreev | 6$^6$ | 3 | | 6 | RA Burruchaga | 6 | 6 | | | | | | | | | | | |
| 6 | RA Burruchaga | 7$^8$ | 6 | | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals |
| 7 | P Kypson | 6 | 6 | | | | | | | | | | | | |
| | C Wong | 3 | 1 | | 7 | P Kypson | 5 | 6$^5$ | | | | | | | |
| SE | G Onclin | 6$^3$ | 6$^7$ | | | B Zhukayev | 7 | 7$^7$ | | | | | | | |
| | B Zhukayev | 7$^7$ | 7$^9$ | | | | | | B Zhukayev | 4 | 6 | 3 | | | |
| Q | L Neumayer | 6 | 5 | 0 | | | | | D Yevseyev | 6 | 2 | 6 | | | |
| | D Yevseyev | 3 | 7 | 6 | | D Yevseyev | 7$^{10}$ | 6 | | | | | | | |
| SE | J Berrettini | 7$^7$ | 4 | 5 | 3 | E Nava | 6$^8$ | 0 | | | | | | | |
| 3 | E Nava | 6$^2$ | 6 | 7 | | | | | | | | | D Yevseyev | 5 | 2 |
| 5 | L Harris | 7 | 7$^8$ | | | | | | | | | | E Ymer | 7 | 6 |
| Q | F Ferreira Silva | 5 | 6$^6$ | | 5 | L Harris | 5 | 3 | | | | | | | |
| | E Ymer | 6 | 6 | | | E Ymer | 7 | 6 | | | | | | | |
| | E Quinn | 3 | 4 | | | | | | E Ymer | 6 | 1 | 6 | | | |
| | T Boyer | 6$^8$ | 7$^7$ | 6 | | | | | J Choinski | 2 | 6 | 4 | | | |
| | D Blanch | 7$^{10}$ | 6$^0$ | 3 | | T Boyer | 4 | 5 | | | | | | | |
| | J Choinski | 6 | 6 | | | J Choinski | 6 | 7 | | | | | | | |
| 2 | Z Svajda | 3 | 0 | | | | | | | | | | | | |