Andrés Molteni and Horacio Zeballos were the defending champions, but chose not to participate together.[1] Molteni played alongside Roman Jebavý, but lost in the quarterfinals to Marco Cecchinato and Dušan Lajović.
| Doubles | |
|---|---|
| 2019 Argentina Open | |
| Champions |  Máximo González Horacio Zeballos |
| Runners-up | Diego Schwartzman Dominic Thiem |
| Score | 6–1, 6–1 |
Zeballos successfully defended the title alongside Máximo González, defeating Diego Schwartzman and Dominic Thiem in the final, 6–1, 6–1.
Seeds
edit
Máximo González / Horacio Zeballos (champions)
Pablo Cuevas / 
Marc López (first round)
Marcelo Demoliner / 
Frederik Nielsen (quarterfinals)
Roman Jebavý / Andrés Molteni (quarterfinals)
Draw
editKey
edit- 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
Draw
edit| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | M González H Zeballos
| 710 | 6 | ||||||||||||||||||||||||
 N Monroe  MÁ Reyes-Varela
| 68 | 4 | 1 | M González H Zeballos
| 6 | 77 | |||||||||||||||||||||
| G Andreozzi G Pella
| 6 | 6 | G Andreozzi G Pella
| 4 | 63 | ||||||||||||||||||||||
 G Granollers  J Sousa
| 4 | 3 | 1 | M González H Zeballos
| 6 | 6 | |||||||||||||||||||||
| 4 |  R Jebavý A Molteni
| 6 | 6 |  M Cecchinato  D Lajović
| 1 | 3 | |||||||||||||||||||||
 T Daniel  M Marterer
| 4 | 2 | 4 | R Jebavý A Molteni
| 3 | 7 | [3] | ||||||||||||||||||||
| M Cecchinato D Lajović
| 4 | 6 | [10] | M Cecchinato D Lajović
| 6 | 5 | [10] | ||||||||||||||||||||
| WC | F Delbonis G Durán
| 6 | 3 | [8] | 1 | M González H Zeballos
| 6 | 6 | |||||||||||||||||||
| J Munar A Ramos Viñolas
| 77 | 3 | [11] | D Schwartzman D Thiem
| 1 | 1 | |||||||||||||||||||||
 A Bedene D Marrero
| 62 | 6 | [9] | J Munar A Ramos Viñolas
| 2 | 6 | [10] | ||||||||||||||||||||
 M Arévalo J Cerretani
| 3 | 6 | [5] | 3 |  M Demoliner  F Nielsen
| 6 | 3 | [5] | |||||||||||||||||||
| 3 | M Demoliner F Nielsen
| 6 | 3 | [10] | J Munar A Ramos Viñolas
| 4 | 6 | [6] | |||||||||||||||||||
R Carballés Baena  M Jaziri
| 6 | 77 | D Schwartzman D Thiem
| 6 | 3 | [10] | |||||||||||||||||||||
| WC |  S Gillé J Vliegen
| 3 | 64 | R Carballés Baena M Jaziri
| 4 | 1 | |||||||||||||||||||||
| D Schwartzman D Thiem
| 6 | 7 | D Schwartzman D Thiem
| 6 | 6 | ||||||||||||||||||||||
| 2 |  P Cuevas M López
| 3 | 5 | ||||||||||||||||||||||||
References
edit- ^ "Molteni/Zeballos Dethrone Champions To Clinch Buenos Aires Title". ATP Tour. February 18, 2018. Retrieved February 9, 2019.