title: 2021 Andalucía Challenger – Singles
text: # 2021 Andalucía Challenger – Singles
  
  Pedro Martínez was the defending champion but chose not to defend his title.
  
  Gianluca Mager won the title after defeating Jaume Munar 2–6, 6–3, 6–2 in the final.
  
  ## Seeds
  
  * Roberto Carballés Baena (first round)
  * Norbert Gombos (first round)
  * Jaume Munar (final)
  * Gianluca Mager (champion)
  * Pedro Sousa (second round)
  * Taro Daniel (quarterfinals)
  * Damir Džumhur (second round)
  * Evgeny Donskoy (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 |
  | - | - | - | - | - | - | - | - | - | - |
  | | Alessandro Giannessi | $7^7$ | 4 | 1 | | | | | |
  | 4 | Gianluca Mager | $6^4$ | 6 | 6 | | | | | |
  | 4 | Gianluca Mager | $6^4$ | 6 | 6 | 4 | Gianluca Mager | 2 | 6 | 6 |
  | | | | | | 3 | Jaume Munar | 6 | 3 | 2 |
  | 3 | Jaume Munar | $7^7$ | 7 | | 3 | Jaume Munar | 6 | 3 | 2 |
  | Alt | Mario Vilella Martínez | $6^4$ | 5 | | | | | | |
  
  ### 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 | R Carballés Baena | 6 | 3 | 3 | | | | | | | | | | | | | | |
  | | H Laaksonen | 1 | 6 | 6 | | H Laaksonen | 3 | 3 | | | | | | | | | | |
  | | M Cressy | 1 | $6^3$ | | | M Kližan | 6 | 6 | | | | | | | | | | |
  | | M Kližan | 6 | $7^7$ | | | | | | | M Kližan | 0 | 3 | | | | | | |
  | | J Domingues | 3 | 4 | | | | | | | A Giannessi | 6 | 6 | | | | | | |
  | | A Giannessi | 6 | 6 | | | A Giannessi | 6 | 6 | | | | | | | | | | |
  | PR | A Kuznetsov | $7^7$ | 2 | 1 | 5 | P Sousa | 4 | 3 | | | | | | | | | | |
  | 5 | P Sousa | $6^2$ | 6 | 6 | | | | | | | | | | | A Giannessi | $7^7$ | 4 | 1 |
  | 4 | G Mager | 6 | 6 | | | | | | | | | | | 4 | G Mager | $6^4$ | 6 | 6 |
  | Q | Carlos Sánchez Jover | 3 | 2 | | 4 | G Mager | 6 | 6 | | | | | | | | | | |
  | Alt | E Ymer | 6 | 6 | | Alt | E Ymer | 4 | 3 | | | | | | | | | | |
  | Q | J Barranco Cosano | 1 | 2 | | | | | | 4 | G Mager | 4 | 6 | 6 | | | | | |
  | | M Polmans | 3 | 1 | | | | | | | R Marcora | 6 | 3 | 2 | | | | | |
  | | R Marcora | 6 | 6 | | | R Marcora | 6 | 7 | | | | | | | | | | |
  | | E Gulbis | 6 | 6 | | | E Gulbis | 4 | 5 | | | | | | | | | | |
  | 8 | E Donskoy | 2 | 2 | | | | | | | | | | | | | | | |
  
  ### Bottom 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 |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 6 | T Daniel | 6 | 6 | | | | | | | | | | | | | | |
  | WC | L Borg | 1 | 2 | | 6 | T Daniel | 7 | 6 | | | | | | | | | |
  | WC | C Gómez-Herrera | $7^{12}$ | $7^7$ | | WC | C Gómez-Herrera | 5 | 4 | | | | | | | | | |
  | WC | C Gimeno Valero | $6^{10}$ | $6^5$ | | | | | | 6 | T Daniel | 6 | 2 | 3 | | | | |
  | Q | V Kopřiva | 6 | 3 | 7 | | | | | 3 | J Munar | 4 | 6 | 6 | | | | |
  | | L Rosol | 3 | 6 | 5 | Q | V Kopřiva | 4 | 2 | | | | | | | | | |
  | | S Ofner | $6^3$ | 4 | | 3 | J Munar | 6 | 6 | | | | | | | | | |
  | 3 | J Munar | $7^7$ | 6 | | | | | | | | | | | 3 | J Munar | $7^7$ | 7 |
  | 7 | D Džumhur | 6 | 6 | | | | | | | | | | | Alt | M Vilella Martínez | $6^4$ | 5 |
  | Q | N Sánchez Izquierdo | 4 | 4 | | 7 | D Džumhur | 3 | 4 | | | | | | | | | |
  | Alt | M Vilella Martínez | $7^7$ | 6 | | Alt | M Vilella Martínez | 6 | 6 | | | | | | | | | |
  | | L Giustino | $6^4$ | 0 | | | | | | Alt | M Vilella Martínez | 6 | 6 | | | | | |
  | | D Petrović | 6 | 3 | 4 | | | | | | N Milojević | 3 | 4 | | | | | |
  | | N Milojević | 3 | 6 | 6 | | N Milojević | 6 | 7 | | | | | | | | | |
  | Alt | M Janvier | 6 | $6^4$ | 6 | Alt | M Janvier | 1 | 5 | | | | | | | | | |
  | 2 | N Gombos | 4 | $7^7$ | 3 | | | | | | | | | | | | | |
  