# 2021 Salinas Challenger II – Singles

Nicolás Jarry was the defending champion but lost in the final to Emilio Gómez.
Gómez won the title after defeating Jarry 4–6, 7–6$^{(8–6)}$, 6–4 in the final.

## Seeds

* Emilio Gómez (champion)
* João Menezes (first round)
* Roberto Cid Subervi (first round)
* Altuğ Çelikbilek (first round)
* Hiroki Moriya (quarterfinals)
* Roberto Quiroz (first round)
* Adrián Menéndez Maceiras (second round)
* Roberto Ortega Olmedo (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 | Emilio Gómez | 1 | 7 | 4 | | | | | |
| | Thiago Agustín Tirante | 6 | 5 | 3$^r$ | | | | | |
| | Thiago Agustín Tirante | 6 | 5 | 3$^r$ | 1 | Emilio Gómez | 4 | 7$^8$ | 6 |
| | | | | | SE | Nicolás Jarry | 6 | 6$^6$ | 4 |
| | Agustín Velotti | 1 | 2 | | SE | Nicolás Jarry | 6 | 6$^6$ | 4 |
| SE | Nicolás Jarry | 6 | 6 | | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | E Gómez | 6 | 6 | | | | | | | | | | | | | | | |
| | V Orlov | 1 | 1 | | 1 | E Gómez | 7$^7$ | 7$^7$ | | | | | | | | | | |
| | K Uchida | 5 | 4 | | | C Ugo Carabelli | 6$^2$ | 6$^1$ | | | | | | | | | | |
| | C Ugo Carabelli | 7 | 6 | | | | | | 1 | E Gómez | 6 | 6 | | | | | | |
| | N Chappell | 6 | 1 | 5 | | | | | 5 | H Moriya | 1 | 4 | | | | | | |
| Q | TK Wang | 3 | 6 | 7 | Q | TK Wang | 0 | 6$^3$ | | | | | | | | | | |
| | D Yevseyev | 6$^1$ | 2 | | 5 | H Moriya | 6 | 7$^7$ | | | | | | | | | | |
| 5 | H Moriya | 7$^7$ | 6 | | | | | | | | | | | 1 | E Gómez | 1 | 7 | 4 |
| 4 | A Çelikbilek | 2 | 4 | | | | | | | | | | | | TA Tirante | 6 | 5 | 3$^r$ |
| | TA Tirante | 6 | 6 | | | TA Tirante | 6 | 0 | | | | | | | | | | |
| | Shuichi Sekiguchi | 2 | 4 | | | P Sakamoto | 3 | 0$^r$ | | | | | | | | | | |
| | P Sakamoto | 6 | 6 | | | | | | | TA Tirante | 6 | 4 | 6 | | | | | |
| Q | G Villanueva | 7 | 6 | | | | | | | JC Aragone | 4 | 6 | 1 | | | | | |
| Q | H Casanova | 5 | 0 | | Q | G Villanueva | 2 | 2 | | | | | | | | | | |
| | JC Aragone | 6 | 6$^4$ | 6 | | JC Aragone | 6 | 6 | | | | | | | | | | |
| 6/WC | R Quiroz | 2 | 7$^7$ | 2 | | | | | | | | | | | | | | |

### 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 |
| 7 | A Menéndez Maceiras | 7 | 6 | | | | | | | | | | | | | | |
| WC | D Hidalgo | 5 | 0 | | 7 | A Menéndez Maceiras | 1 | 6 | 5 | | | | | | | | |
| Q | F Díaz Acosta | 4 | 3 | | | K King | 6 | 2 | 7 | | | | | | | | |
| | K King | 6 | 6 | | | | | | | | K King | 3 | 3 | | | | |
| | A Dougaz | 7$^7$ | 7 | | | | | | | | A Velotti | 6 | 6 | | | | |
| | J Sels | 6$^5$ | 5 | | | A Dougaz | 4 | 6 | 5 | | | | | | | | |
| | A Velotti | 5 | 6 | 7$^7$ | | A Velotti | 6 | 4 | 7 | | | | | | | | |
| 3 | R Cid Subervi | 7 | 4 | 6$^5$ | | | | | | | | | | | A Velotti | 1 | 2 |
| 8 | R Ortega Olmedo | 6$^2$ | 7$^8$ | 6$^6$ | | | | | | | | | | SE | N Jarry | 6 | 6 |
| | T van Rijthoven | 7$^7$ | 6$^6$ | 7$^8$ | | T van Rijthoven | 3 | 5 | | | | | | | | | |
| | O Luz | 2 | 4 | | SE | N Jarry | 6 | 7 | | | | | | | | | |
| SE | N Jarry | 6 | 6 | | | | | | | SE | N Jarry | 6 | 6 | | | | |
| SE | N Mejía | 6 | 6 | | | | | | | SE | N Mejía | 1 | 2 | | | | |
| WC | AC March | 1 | 2 | | SE | N Mejía | 3 | 6 | 6 | | | | | | | | |
| | S Mansouri | 6$^7$ | 6 | 7$^7$ | | S Mansouri | 6 | 3 | 2 | | | | | | | | |
| 2 | J Menezes | 7$^9$ | 4 | 6$^4$ | | | | | | | | | | | | | |