title: 2021 Garden Open II – Singles
text: # 2021 Garden Open II – Singles
  
  Andrea Pellegrino was the defending champion but lost in the quarterfinals to Flavio Cobolli.
  
  Juan Manuel Cerúndolo won the title after defeating Cobolli 6–2, 3–6, 6–3 in the final.
  
  ## Seeds
  
  * Damir Džumhur (first round)
  * Hugo Dellien (first round)
  * Federico Gaio (second round)
  * Danilo Petrović (second round)
  * Hugo Gaston (first round)
  * Paolo Lorenzi (first round)
  * Juan Pablo Varillas (first round)
  * Alessandro Giannessi (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 | Semifinals | Final | Final | Final | Final | Final |
  | - | - | - | - | - | - | - | - | - | - |
  | | Cem İlkel | 3 | 5 | | | | | | |
  | WC | Flavio Cobolli | 6 | 7 | | | | | | |
  | WC | Flavio Cobolli | 6 | 7 | | WC | Flavio Cobolli | 2 | 6 | 3 |
  | | | | | | | Juan Manuel Cerúndolo | 6 | 3 | 6 |
  | 8 | Alessandro Giannessi | 6 | 4 | 5 | | Juan Manuel Cerúndolo | 6 | 3 | 6 |
  | | Juan Manuel Cerúndolo | 4 | 6 | 7 | | | | | |
  
  ### 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 | D Džumhur | 2 | $7^7$ | 3 | | | | | | | | | | | | | | |
  | Q | N Serdarušić | 6 | $6^1$ | 6 | Q | N Serdarušić | 4 | 6 | 6 | | | | | | | | | |
  | | A Vukic | 4 | 1 | | | R Marcora | 6 | 1 | 4 | | | | | | | | | |
  | | R Marcora | 6 | 6 | | | | | | | Q | N Serdarušić | $6^3$ | 6 | 3 | | | | |
  | | D Masur | 6 | 4 | $6^2$ | | | | | | | C İlkel | $7^7$ | 3 | 6 | | | | |
  | | C İlkel | 4 | 6 | $7^7$ | | C İlkel | 6 | 6 | | | | | | | | | | |
  | | L Giustino | 6 | 7 | | | L Giustino | 4 | 2 | | | | | | | | | | |
  | 7 | JP Varillas | 1 | 5 | | | | | | | | | | | | | C İlkel | 3 | 5 |
  | 4 | D Petrović | 6 | $7^8$ | | | | | | | | | | | | WC | F Cobolli | 6 | 7 |
  | Q | I Sijsling | 1 | $6^6$ | | 4 | D Petrović | 2 | 2 | | | | | | | | | | |
  | WC | F Cobolli | 6 | 6 | | WC | F Cobolli | 6 | 6 | | | | | | | | | | |
  | | S Diez | 4 | 1 | | | | | | | WC | F Cobolli | $7^7$ | 6 | | | | | |
  | SE | A Pellegrino | 6 | 4 | 6 | | | | | | SE | A Pellegrino | $6^3$ | 1 | | | | | |
  | WC | S Napolitano | 4 | 6 | 4 | SE | A Pellegrino | 6 | $6^4$ | 6 | | | | | | | | | |
  | Alt | A Collarini | 6 | 6 | | Alt | A Collarini | 3 | $7^7$ | 4 | | | | | | | | | |
  | 5 | H Gaston | 1 | 4 | | | | | | | | | | | | | | | |
  
  ### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 8 | A Giannessi | 6 | 6 | | | | | | | | | | | | | | | | |
  | | G Andreozzi | 3 | 3 | | 8 | A Giannessi | 6 | 6 | | | | | | | | | | | |
  | | A Bolt | 0 | 3 | | | J Clarke | 2 | 4 | | | | | | | | | | | |
  | | J Clarke | 6 | 6 | | | | | | | 8 | A Giannessi | 7 | 3 | 7 | | | | | |
  | PR | T Kokkinakis | 6 | 6 | | | | | | | PR | T Kokkinakis | 5 | 6 | 5 | | | | | |
  | | Y Maden | 3 | 2 | | PR | T Kokkinakis | $6^8$ | 6 | 6 | | | | | | | | | | |
  | | R Bemelmans | 6 | 3 | 2 | 3 | F Gaio | $7^{10}$ | 3 | 4 | | | | | | | | | | |
  | 3 | F Gaio | 3 | 6 | 6 | | | | | | | | | | | 8 | A Giannessi | 6 | 4 | 5 |
  | 6 | P Lorenzi | 4 | 0 | | | | | | | | | | | | | JM Cerúndolo | 4 | 6 | 7 |
  | | A Müller | 6 | 6 | | | A Müller | 4 | 3 | | | | | | | | | | | |
  | | JM Cerúndolo | 7 | 7 | | | JM Cerúndolo | 6 | 6 | | | | | | | | | | | |
  | Q | T Lamasine | 5 | 5 | | | | | | | | JM Cerúndolo | 6 | 6 | | | | | | |
  | Q | F Meligeni Alves | 6 | 6 | | | | | | | WC | G Zeppieri | 0 | 3 | | | | | | |
  | | E Couacaud | 3 | 4 | | Q | F Meligeni Alves | 4 | 3 | | | | | | | | | | | |
  | WC | G Zeppieri | 1 | 6 | 6 | WC | G Zeppieri | 6 | 6 | | | | | | | | | | | |
  | 2 | H Dellien | 6 | 3 | 4 | | | | | | | | | | | | | | | |
  