| Doubles | ||||
|---|---|---|---|---|
| 2021 Antalya Challenger IV | ||||
| Final | ||||
| Champions |  Hsu Yu-hsiou Oleksii Krutykh | |||
| Runners-up |  Sanjar Fayziev Markos Kalovelonis | |||
| Score | 6–1, 7–6 | |||
| Events | ||||
| ||||
| ||||
Riccardo Bonadio and Giovanni Fonio were the defending champions but withdrew from the tournament before their quarterfinal match.
Hsu Yu-hsiou and Oleksii Krutykh won the title after defeating Sanjar Fayziev and Markos Kalovelonis 6–1, 7–6 in the final.
Seeds
Jakub Paul / 
Bart Stevens (semifinals)- Hsu Yu-hsiou / Oleksii Krutykh (champions)
- Sanjar Fayziev / Markos Kalovelonis (final)
Grigoriy Lomakin / Oleg Prihodko (quarterfinals)
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 | J Paul B Stevens
| 6 | 6 | ||||||||||||||||||||||||
| M Veldheer D Wenger
| 7 | 4 | M Veldheer D Wenger
| 3 | 2 | ||||||||||||||||||||||
| WC |  S Ağabigün T Altuna
| 5 | 6 | 1 | J Paul B Stevens
| 3 | 6 | ||||||||||||||||||||
| 3 | S Fayziev M Kalovelonis
| 7 | 6 | 3 | S Fayziev M Kalovelonis
| 6 | 7 | ||||||||||||||||||||
 Andrey Chepelev E Tiurnev
| 6 | 4 | 3 | S Fayziev M Kalovelonis
| w/o | ||||||||||||||||||||||
 R Bonadio G Fonio
| w/o | R Bonadio G Fonio
| |||||||||||||||||||||||||
 D Ajduković M Zekić
| 3 | S Fayziev M Kalovelonis
| 1 | 6 | |||||||||||||||||||||||
 C Crețu A Jecan
| 6 | 6 | 2 | Y-h Hsu O Krutykh
| 6 | 7 | |||||||||||||||||||||
| WC | U Akkoyun M İlhan
| 2 | 3 | C Crețu A Jecan
| 7 | 4 | |||||||||||||||||||||
 T Matsui K Uesugi
| 6 | 1 | 4 | G Lomakin O Prihodko
| 6 | 6 | |||||||||||||||||||||
| 4 | G Lomakin O Prihodko
| 3 | 6 | C Crețu A Jecan
| 7 | 6 | |||||||||||||||||||||
| V Orlov K Sultanov
| 2 | Y-h Hsu O Krutykh
| 6 | 7 | |||||||||||||||||||||||
 P Milushev R Shandarov
| w/o | P Milushev R Shandarov
| 1 | 3 | |||||||||||||||||||||||
| 2 | Y-h Hsu O Krutykh
| 6 | 6 | ||||||||||||||||||||||||
References
- "Borges Earns Maiden Challenger Title In Antalya". December 5, 2021.