| Singles | |
|---|---|
| 2024 Sánchez-Casal Cup | |
| Champion |  Nick Hardt |
| Runner-up |  Bernabé Zapata Miralles |
| Score | 6–4, 3–6, 6–2 |
Dimitar Kuzmanov was the defending champion [1] but chose not to defend his title.
Nick Hardt won the title after defeating Bernabé Zapata Miralles 6–4, 3–6, 6–2 in the final. [2]
Quentin Halys (first round) Bernabé Zapata Miralles (final)
Jesper de Jong (quarterfinals)
Radu Albot (second round)
Vitaliy Sachko (second round)
Ivan Gakhov (second round)
Billy Harris (quarterfinals)
Joris De Loore (first round, retired)| Semifinals | Final | ||||||||||||
| Alt | Nick Hardt | 6 | 4 | 6 | |||||||||
| Javier Barranco Cosano | 1 | 6 | 0 | ||||||||||
| Alt | Nick Hardt | 6 | 3 | 6 | |||||||||
| 2/WC | Bernabé Zapata Miralles | 4 | 6 | 2 | |||||||||
| Q |  Lorenzo Giustino | 61 | 0r | ||||||||||
| 2/WC | Bernabé Zapata Miralles | 77 | 0 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | Q Halys | 5 | 6 | 4 | |||||||||||||||||||||||
| Alt | N Hardt | 7 | 1 | 6 | Alt | N Hardt | 6 | 6 | |||||||||||||||||||
| V Royer | 6 | 6 | V Royer | 4 | 3 | ||||||||||||||||||||||
| Q |  I Buse | 3 | 4 | Alt | N Hardt | 6 | 6 | ||||||||||||||||||||
| O Roca Batalla | 5 | 6 | 3 |  ND Ionel | 3 | 3 | |||||||||||||||||||||
| M Geerts | 7 | 3 | 6 | M Geerts | 67 | 6 | 1 | ||||||||||||||||||||
| ND Ionel | 6 | 1 | ND Ionel | 79 | 4 | 6 | |||||||||||||||||||||
| 8 | J De Loore | 4 | 0r | Alt | N Hardt | 6 | 4 | 6 | |||||||||||||||||||
| 4/SE | R Albot | 0 | 6 | 6 | J Barranco Cosano | 1 | 6 | 0 | |||||||||||||||||||
| D Rincón | 6 | 4 | 3 | 4/SE | R Albot | 4 | 5 | ||||||||||||||||||||
 H Squire | 4 | 4 | Q | C Taberner | 6 | 7 | |||||||||||||||||||||
| Q | C Taberner | 6 | 6 | Q | C Taberner | 5 | 0 | ||||||||||||||||||||
| J Barranco Cosano | 6 | 7 | J Barranco Cosano | 7 | 6 | ||||||||||||||||||||||
| Alt | Mathys Erhard | 4 | 5 | J Barranco Cosano | 6 | 3 | 6 | ||||||||||||||||||||
| A Moro Cañas | 5 | 2 | 6 | I Gakhov | 1 | 6 | 4 | ||||||||||||||||||||
| 6 | I Gakhov | 7 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | V Sachko | 66 | 6 | 7 | |||||||||||||||||||||||
| T Lamasine | 78 | 1 | 5 | 5 | V Sachko | 4 | 2 | ||||||||||||||||||||
 D Novak | 3 | 0r | Q | L Giustino | 6 | 6 | |||||||||||||||||||||
| Q | L Giustino | 6 | 5 | Q | L Giustino | 7 | 6 | ||||||||||||||||||||
| WC | David Naharro | 1 | 0 | 3 | J de Jong | 5 | 4 | ||||||||||||||||||||
| N Sánchez Izquierdo | 6 | 6 | N Sánchez Izquierdo | 3 | 4 | ||||||||||||||||||||||
| Q | O Krutykh | 1 | 3 | 3 | J de Jong | 6 | 6 | ||||||||||||||||||||
| 3 | J de Jong | 6 | 6 | Q | L Giustino | 61 | 0r | ||||||||||||||||||||
| 7 | B Harris | 6 | 6 | 2/WC | B Zapata Miralles | 77 | 0 | ||||||||||||||||||||
| WC |  Tristan McCormick | 1 | 1 | 7 | B Harris | 6 | 0 | ||||||||||||||||||||
| Q | G Debru | 6 | 6 | Q | G Debru | 0 | 0r | ||||||||||||||||||||
 Iliyan Radulov | 2 | 4 | 7 | B Harris | 5 | 62 | |||||||||||||||||||||
| M Cecchinato | 6 | 6 | 2/WC | B Zapata Miralles | 7 | 77 | |||||||||||||||||||||
| Q | Miguel Damas | 2 | 1 | M Cecchinato | 1 | 0r | |||||||||||||||||||||
| L Neumayer | 3 | 3 | 2/WC | B Zapata Miralles | 6 | 4 | |||||||||||||||||||||
| 2/WC | B Zapata Miralles | 6 | 6 | ||||||||||||||||||||||||
Stan Wawrinka was the two-time defending champion but lost to Márton Fucsovics in the quarterfinals.
Andrea Collarini was the defending champion but lost in the first round to Marco Cecchinato.
Christopher O'Connell was the defending champion but chose not to defend his title.
Salvatore Caruso was the defending champion and chose not to defend his title.
Gaël Monfils was the defending champion, but chose not to defend his title.
Aslan Karatsev won his first ATP Tour singles title, defeating Lloyd Harris in the final, 6–3, 6–2 to win the men's singles tennis title at the 2021 Dubai Tennis Championships. Karatsev became the second wildcard in the tournament's history to win the men's singles title. Harris was the first qualifier to reach the final of the Dubai Tennis Championships.
Tommy Robredo was the defending champion but chose not to defend his title.
Bernabé Zapata Miralles was the defending champion but chose not to defend his title.
Alejandro Davidovich Fokina was the defending champion but chose not to defend his title.
Jo-Wilfried Tsonga was the reigning champion from when the tournament was last held in 2019, but chose not to participate this year.
Carlos Alcaraz was the defending champion but chose not to defend his title.
Félix Auger-Aliassime defeated Stefanos Tsitsipas in the final, 6–4, 6–2. It was his maiden ATP Tour singles title, following eight runner-up finishes in prior finals.
David Goffin defeated Alex Molčan in the final, 3–6, 6–3, 6–3 to win the singles tennis title at the 2022 Grand Prix Hassan II. It was Goffin's sixth ATP singles title.
Sebastián Báez defeated Frances Tiafoe in the final, 6–3, 6–2 to win the singles tennis title at the 2022 Estoril Open. It was his maiden ATP Tour title.
Bernabé Zapata Miralles was the defending champion but lost in the quarterfinals to Andrej Martin.
Bernabé Zapata Miralles was the defending champion but chose not to defend his title.
Daniel Altmaier was the defending champion but chose not to defend his title.
Tomás Barrios Vera was the defending champion but chose not to defend his title.
Pedro Martínez was the defending champion but lost in the first round to Kimmer Coppejans.
Bernabé Zapata Miralles was the defending champion but chose not to defend his title.