| Doubles | ||||
|---|---|---|---|---|
| 2020 Sánchez-Casal Cup | ||||
| Final | ||||
| Champions |  Szymon Walków Tristan-Samuel Weissborn | |||
| Runners-up |  Harri Heliövaara Alex Lawson | |||
| Score | 6–1, 4–6, | |||
| Events | ||||
| ||||
| ||||
Simone Bolelli and David Vega Hernández were the defending champions but chose not to defend their title.
Szymon Walków and Tristan-Samuel Weissborn won the title after defeating Harri Heliövaara and Alex Lawson 6–1, 4–6, in the final.
Seeds
Luis David Martínez / 
Miguel Ángel Reyes-Varela (first round)
Treat Huey / Nathaniel Lammons (first round)
Sriram Balaji / 
Luca Margaroli (semifinals)- Szymon Walków / Tristan-Samuel Weissborn (champions)
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
| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | LD Martínez MÁ Reyes-Varela
| 6 | 6 | ||||||||||||||||||||||||
| R Galloway H Reese
| 7 | 1 | R Galloway H Reese
| 6 | 4 | ||||||||||||||||||||||
| H Heliövaara A Lawson
| 6 | 6 | H Heliövaara A Lawson
| 1 | 6 | ||||||||||||||||||||||
| WC |  Max Andrews Jaume Pla Malfeito
| 0 | 4 | H Heliövaara A Lawson
| 7 | 6 | |||||||||||||||||||||
| 3 | S Balaji L Margaroli
| 5 | 6 | 3 | S Balaji L Margaroli
| 5 | 7 | ||||||||||||||||||||
R Ramanathan A Vukic
| 7 | 4 | 3 | S Balaji L Margaroli
| 6 | 6 | |||||||||||||||||||||
| WC | D Marrero N Zimonjić
| 4 | 6 | WC | S Martos Gornés M Vilella Martínez
| 3 | 4 | ||||||||||||||||||||
| WC | S Martos Gornés M Vilella Martínez
| 6 | 3 | H Heliövaara A Lawson
| 1 | 6 | |||||||||||||||||||||
| Alt |  D Džumhur A Harris
| 1 | 4 | S Walków T-S Weissborn
| 6 | 4 | |||||||||||||||||||||
 R Matos P Sousa
| 5 | R Matos P Sousa
| |||||||||||||||||||||||||
| Alt |  K Coppejans E Couacaud
| 3 | 2 | 4 | S Walków T-S Weissborn
| w/o | |||||||||||||||||||||
| 4 | S Walków T-S Weissborn
| 6 | 6 | 4 | S Walków T-S Weissborn
| 6 | 6 | ||||||||||||||||||||
O Luz D Popko
| 4 | 6 |  G Durán R Olivo
| 7 | 3 | ||||||||||||||||||||||
 R Arneodo A Olivetti
| 6 | 2 | O Luz D Popko
| 1 | 3 | ||||||||||||||||||||||
| G Durán R Olivo
| 6 | 6 | G Durán R Olivo
| 6 | 6 | ||||||||||||||||||||||
| 2 | T Huey N Lammons
| 7 | 4 | ||||||||||||||||||||||||
References
- "Ramanathan/Gomes lose in doubles final in Sanchez-Casal Head ATP Challenger". www.babushahi.com.