| Singles | |
|---|---|
| 2023 Sparta Prague Open | |
| Champion |  Jakub Menšík |
| Runner-up |  Dominik Koepfer |
| Score | 6–4, 6–3 |
Sebastian Ofner was the defending champion [1] but chose not to defend his title.
Jakub Menšík won the title after defeating Dominik Koepfer 6–4, 6–3 in the final.
Radu Albot (first round)
Dominic Stricker (first round)
Norbert Gombos (second round) Lukáš Klein (quarterfinals)
Enzo Couacaud (first round) Dominik Koepfer (final)
Damir Džumhur (first round)
Tseng Chun-hsin (first round)| Semifinals | Final | ||||||||||||
| WC | Jakub Menšík | 6 | 7 | ||||||||||
| Alt |  Alejandro Moro Cañas | 2 | 5 | ||||||||||
| WC | Jakub Menšík | 6 | 6 | ||||||||||
| 6 | Dominik Koepfer | 4 | 3 | ||||||||||
| 6 | Dominik Koepfer | 6 | 6 | ||||||||||
 Nicolás Kicker | 4 | 3 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | R Albot | 64 | 6 | 3 | |||||||||||||||||||||||
| WC | J Menšík | 77 | 4 | 6 | WC | J Menšík | 6 | 6 | |||||||||||||||||||
 M Geerts | 1 | 1 | LL |  V Sachko | 4 | 4 | |||||||||||||||||||||
| LL | V Sachko | 6 | 6 | WC | J Menšík | 3 | 6 | 78 | |||||||||||||||||||
| Alt |  F Gaio | 2 | 4 | Q |  A Santillan | 6 | 3 | 66 | |||||||||||||||||||
 N Hardt | 6 | 6 | N Hardt | 6 | 4 | 3 | |||||||||||||||||||||
| Q | A Santillan | 6 | 6 | Q | A Santillan | 4 | 6 | 6 | |||||||||||||||||||
| 8 | C-h Tseng | 3 | 0 | WC | J Menšík | 6 | 7 | ||||||||||||||||||||
| 3 | N Gombos | 6 | 6 | Alt | A Moro Cañas | 2 | 5 | ||||||||||||||||||||
| Q | R Molleker | 4 | 4 | 3 | N Gombos | 68 | 62 | ||||||||||||||||||||
 S Mochizuki | 7 | 6 | S Mochizuki | 710 | 77 | ||||||||||||||||||||||
| WC | M Vrbenský | 5 | 3 | S Mochizuki | 3 | 4 | |||||||||||||||||||||
| Alt | A Moro Cañas | 6 | 3 | 6 | Alt | A Moro Cañas | 6 | 6 | |||||||||||||||||||
| Q |  B Harris | 2 | 6 | 0 | Alt | A Moro Cañas | 6 | 2 | 6 | ||||||||||||||||||
 Z Svajda | 6 | 6 | Z Svajda | 4 | 6 | 4 | |||||||||||||||||||||
| 5 | E Couacaud | 4 | 1 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | D Koepfer | 1 | |||||||||||||||||||||||||
| Q |  G Elias | 1r | 6 | D Koepfer | 78 | 0 | |||||||||||||||||||||
| Z Kolář | 4 | 3 | E Furness | 66 | 0r | ||||||||||||||||||||||
| E Furness | 6 | 6 | 6 | D Koepfer | 6 | 66 | 6 | ||||||||||||||||||||
| Q | G Andreozzi | 6 | 6 | 4 | L Klein | 4 | 78 | 1 | |||||||||||||||||||
| Q | D Rincón | 4 | 4 | Q | G Andreozzi | 7 | 3 | 3 | |||||||||||||||||||
 Y Demin | 5 | 1 | 4 | L Klein | 5 | 6 | 6 | ||||||||||||||||||||
| 4 | L Klein | 7 | 6 | 6 | D Koepfer | 6 | 6 | ||||||||||||||||||||
| 7 | D Džumhur | 3 | 63 | N Kicker | 4 | 3 | |||||||||||||||||||||
| N Kicker | 6 | 77 | N Kicker | 7 | 6 | ||||||||||||||||||||||
| D Added | 7 | 4 | 3 | Alt | N Fatić | 5 | 4 | ||||||||||||||||||||
| Alt | N Fatić | 5 | 6 | 6 | N Kicker | w/o | |||||||||||||||||||||
| WC | J Veselý | 4 | 5 | H Laaksonen | |||||||||||||||||||||||
| P Llamas Ruiz | 6 | 7 | P Llamas Ruiz | 3 | 78 | 2 | |||||||||||||||||||||
| H Laaksonen | 7 | 4 | 6 | H Laaksonen | 6 | 66 | 6 | ||||||||||||||||||||
| 2 | D Stricker | 5 | 6 | 1 | |||||||||||||||||||||||
Pablo Cuevas was the three-time defending champion, but lost in the semifinals to Fabio Fognini.
Egor Gerasimov was the defending champion but lost in the second round to Jurij Rodionov.
David Ferrer was the defending champion but chose not to defend his title.
This was the first edition of the tournament.
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Mitchell Krueger was the defending champion but lost in the third round to Denis Kudla.
Ričardas Berankis was the defending champion but chose not to defend his title.
Cristian Garín was the defending champion, but chose not to defend his title.
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Andrey Rublev was the defending champion, but chose to compete in St. Petersburg instead.
Łukasz Kubot and Marcelo Melo were the defending champions, but Kubot chose not to participate. Melo played alongside Ivan Dodig, but lost in the first round to Feliciano López and Stefanos Tsitsipas.
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Dominik Koepfer was the defending champion but chose not to defend his title.
Alex de Minaur defeated Jenson Brooksby in the final, 6–3, 6–3 to win the singles title at the 2022 Atlanta Open. It was de Minaur's second Atlanta title, the first being in 2019.
Nick Kyrgios defeated Yoshihito Nishioka in the final, 6–4, 6–3 to win the men's singles tennis title at the 2022 Washington Open. It was his second Washington title, following 2019. Kyrgios saved five match points en route to the title, in the quarterfinals against Frances Tiafoe. He also did not drop serve during the tournament.
Mitchell Krueger was the defending champion but lost in the first round to Keegan Smith.
Arthur Rinderknech was the defending champion but chose not to defend his title.
Dominik Koepfer was the defending champion but lost in the final to Liam Draxl.