# 2025 Challenger de Tigre – Singles

Juan Manuel Cerúndolo was the defending champion but chose not to defend his title.
Juan Pablo Varillas won the title after defeating Daniel Vallejo 6–4, 6–4 in the final.

## Seeds

* Román Andrés Burruchaga (second round)
* Murkel Dellien (quarterfinals)
* Andrea Collarini (first round, retired)
* Juan Pablo Varillas (champion)
* Emilio Nava (quarterfinals)
* Facundo Mena (first round)
* Daniel Vallejo (final)
* Gonzalo Bueno (semifinals)

## 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 | Daniel Vallejo | 7 | 6 | | | | |
| | Álvaro Guillén Meza | 5 | 2 | | | | |
| | Álvaro Guillén Meza | 5 | 2 | 7 | Daniel Vallejo | 4 | 4 |
| | | | | 4 | Juan Pablo Varillas | 6 | 6 |
| 4 | Juan Pablo Varillas | 7$^7$ | 6 | 4 | Juan Pablo Varillas | 6 | 6 |
| 8 | Gonzalo Bueno | 6$^4$ | 4 | | | | |

### 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 | RA Burruchaga | 6 | 6 | | | | | | | | | | | | | | | |
| Q | M Chazal | 2 | 3 | | 1 | RA Burruchaga | 4 | 4 | | | | | | | | | | |
| Q | G Villanueva | 6 | 4 | 6 | Q | G Villanueva | 6 | 6 | | | | | | | | | | |
| | JB Torres | 4 | 6 | 3 | | | | | | Q | G Villanueva | 6 | 3 | 4 | | | | |
| | GA Olivieri | 6 | 6 | | | | | | | 7 | AD Vallejo | 3 | 6 | 6 | | | | |
| | D Dutra da Silva | 3 | 1 | | | GA Olivieri | 3 | 4 | | | | | | | | | | |
| | R Olivo | 4 | 2 | | 7 | AD Vallejo | 6 | 6 | | | | | | | | | | |
| 7 | AD Vallejo | 6 | 6 | | | | | | | | | | | | 7 | AD Vallejo | 7 | 6 |
| 3 | A Collarini | 4 | 2$^r$ | | | | | | | | | | | | | Á Guillén Meza | 5 | 2 |
| | Á Guillén Meza | 6 | 4 | | | Á Guillén Meza | 6 | 6 | | | | | | | | | | |
| | A Andrade | 5 | 4 | | | J Schwärzler | 3 | 2 | | | | | | | | | | |
| | J Schwärzler | 7 | 6 | | | | | | | | Á Guillén Meza | 6 | 6 | | | | | |
| | S Rodríguez Taverna | 1 | 6 | 6 | | | | | | | S Rodríguez Taverna | 1 | 4 | | | | | |
| WC | L Midón | 6 | 4 | 4 | | S Rodríguez Taverna | 6$^5$ | 6 | 7$^7$ | | | | | | | | | |
| | M Alves | 6$^2$ | 6 | 7$^7$ | | M Alves | 7$^7$ | 3 | 6$^5$ | | | | | | | | | |
| 6 | F Mena | 7$^7$ | 2 | 6$^5$ | | | | | | | | | | | | | | |

### 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 |
| 5 | Em Nava | 6 | 6$^9$ | 7$^7$ | | | | | | | | | | | | | |
| Alt | Àlex Martí Pujolràs | 1 | 7$^{11}$ | 6$^5$ | 5 | Em Nava | 7$^7$ | 6 | | | | | | | | | |
| | M Houkes | 6 | 6 | | | M Houkes | 6$^5$ | 4 | | | | | | | | | |
| Q | M Kestelboim | 2 | 3 | | | | | | | 5 | Em Nava | 4 | 5 | | | | |
| Q | Luciano Emanuel Ambrogi | 6 | 3 | 0 | | | | | | 4 | JP Varillas | 6 | 7 | | | | |
| PR | N Kicker | 3 | 6 | 6 | PR | N Kicker | 6$^6$ | 3 | | | | | | | | | |
| | JC Prado Ángelo | 7$^7$ | 5 | 4 | 4 | JP Varillas | 7$^8$ | 6 | | | | | | | | | |
| 4 | JP Varillas | 6$^4$ | 7 | 6 | | | | | | | | | | 4 | JP Varillas | 7$^7$ | 6 |
| 8 | G Bueno | 6 | 6 | | | | | | | | | | | 8 | G Bueno | 6$^4$ | 4 |
| WC | Ezequiel Monferrer | 2 | 1 | | 8 | G Bueno | 0 | 6 | 6 | | | | | | | | |
| | G Debru | 6 | 6 | | | G Debru | 6 | 2 | 3 | | | | | | | | |
| | A Pellegrino | 3 | 3 | | | | | | | 8 | G Bueno | 6 | 6 | | | | |
| Q | M Cecchinato | 6 | 3 | 4 | | | | | | 2 | M Dellien | 4 | 1 | | | | |
| Q | JL Reis da Silva | 3 | 6 | 6 | Q | JL Reis da Silva | 7$^7$ | 3 | 4 | | | | | | | | |
| WC | Máximo Zeitune | 6 | 1 | 4 | 2 | M Dellien | 6$^3$ | 6 | 6 | | | | | | | | |
| 2 | M Dellien | 4 | 6 | 6 | | | | | | | | | | | | | |