# 2021 Copa Sevilla – Singles

Alejandro Davidovich Fokina was the defending champion but chose not to defend his title.
Pedro Martínez won the title after defeating Roberto Carballés Baena 6–4, 6–1 in the final.

## Seeds

* Pablo Andújar (quarterfinals)
* Pedro Martínez (champion)
* Roberto Carballés Baena (final)
* Carlos Taberner (semifinals)
* Bernabé Zapata Miralles (second round)
* Federico Gaio (second round)
* Marcelo Tomás Barrios Vera (semifinals)
* Lorenzo Giustino (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 | Final | Final | Final | Final |
| 7 | Marcelo Tomás Barrios Vera | 1 | 3 | | | | |
| 3 | Roberto Carballés Baena | 6 | 6 | | | | |
| 3 | Roberto Carballés Baena | 6 | 6 | 3 | Roberto Carballés Baena | 4 | 1 |
| | | | | 2 | Pedro Martínez | 6 | 6 |
| 4 | Carlos Taberner | 4 | 3 | 2 | Pedro Martínez | 6 | 6 |
| 2 | Pedro Martínez | 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 | P Andújar | 6 | 7 | | | | | | | | | | | | | | | |
| | J Barranco Cosano | 2 | 5 | | 1 | P Andújar | 3 | 6 | 6 | | | | | | | | | |
| WC | A López San Martín | 6 | 4 | 6 | WC | A López San Martín | 6 | 1 | 4 | | | | | | | | | |
| Q | Benjamín Winter López | 4 | 6 | 1 | | | | | | 1 | P Andújar | 6$^1$ | 6 | 4 | | | | |
| | M Geerts | 3 | 2 | | | | | | | 7 | MT Barrios Vera | 7$^7$ | 2 | 6 | | | | |
| | J Draper | 6 | 6 | | | J Draper | 5$^r$ | | | | | | | | | | | |
| WC | N Sánchez Izquierdo | 6 | 2 | 5 | 7 | MT Barrios Vera | 6 | | | | | | | | | | | |
| 7 | MT Barrios Vera | 4 | 6 | 7 | | | | | | | | | | | 7 | MT Barrios Vera | 1 | 3 |
| 3 | R Carballés Baena | 6 | 3 | 6 | | | | | | | | | | | 3 | R Carballés Baena | 6 | 6 |
| Alt | J Ocleppo | 2 | 6 | 3 | 3 | R Carballés Baena | 6 | 6 | | | | | | | | | | |
| | R Ortega Olmedo | 6$^2$ | 0 | | | A Andreev | 4 | 1 | | | | | | | | | | |
| | A Andreev | 7$^7$ | 6 | | | | | | | 3 | R Carballés Baena | 7 | 7$^7$ | | | | | |
| | C Gimeno Valero | 0$^r$ | | | | | | | | Q | L Darderi | 5 | 6$^5$ | | | | | |
| Q | L Darderi | 3 | | | Q | L Darderi | 6 | 7$^7$ | | | | | | | | | | |
| | T Gabashvili | 2 | 1 | | 6 | F Gaio | 0 | 6$^1$ | | | | | | | | | | |
| 6 | F Gaio | 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 | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | B Zapata Miralles | 6 | 6 | | | | | | | | | | | | | | | |
| PR | F Baldi | 3 | 2 | | 5 | B Zapata Miralles | 6 | 1 | 4 | | | | | | | | | |
| | GM Moroni | 7$^7$ | 6 | | | GM Moroni | 3 | 6 | 6 | | | | | | | | | |
| | N Kuhn | 6$^5$ | 1 | | | | | | | | GM Moroni | 4 | 6 | 5 | | | | |
| | G Oliveira | 2 | 6 | 2 | | | | | | 4 | C Taberner | 6 | 0 | 7 | | | | |
| PR | J Lenz | 6 | 4 | 6 | PR | J Lenz | 3 | 3 | | | | | | | | | | |
| Q | Lucas Gerch | 1 | 4 | | 4 | C Taberner | 6 | 6 | | | | | | | | | | |
| 4 | C Taberner | 6 | 6 | | | | | | | | | | | | 4 | C Taberner | 4 | 3 |
| 8 | L Giustino | 0 | 2 | | | | | | | | | | | | 2 | P Martínez | 6 | 6 |
| | F Cobolli | 6 | 6 | | | F Cobolli | 6 | 7 | | | | | | | | | | |
| WC | P Llamas Ruiz | 7 | 4 | | WC | P Llamas Ruiz | 3 | 5 | | | | | | | | | | |
| | C Ugo Carabelli | 5 | 1$^r$ | | | | | | | | F Cobolli | 4 | 2 | | | | | |
| | R Brancaccio | 6 | 2 | 7$^7$ | | | | | | 2 | P Martínez | 6 | 6 | | | | | |
| Alt | GA Olivieri | 2 | 6 | 6$^4$ | | R Brancaccio | 4 | 6 | 4 | | | | | | | | | |
| Q | Em Nava | 5 | 4 | | 2 | P Martínez | 6 | 4 | 6 | | | | | | | | | |
| 2 | P Martínez | 7 | 6 | | | | | | | | | | | | | | | |