Singles
Seeds
1. Greece Stefanos Tsitsipas (quarterfinals)
2. Norway Casper Ruud (quarterfinals)
3. Canada Félix Auger-Aliassime (quarterfinals)
4. United Kingdom Cameron Norrie (quarterfinals)
5. Spain Carlos Alcaraz (champion)
6. Argentina Diego Schwartzman (semifinals)
7. Spain Roberto Bautista Agut (withdrew)
8. Spain Pablo Carreño Busta (final)
9. Georgia (country) Nikoloz Basilashvili (second round)
10. Australia Alex de Minaur (semifinals)
11. Italy Lorenzo Sonego (third round)
12. United Kingdom Dan Evans (second round)
13. United States Frances Tiafoe (third round)
14. Bulgaria Grigor Dimitrov (third round)
15. Argentina Federico Delbonis (second round)
16. Kazakhstan Alexander Bublik (second round)
17. Spain Albert Ramos Viñolas (second round)
Spain Carlos Alcaraz def. Spain Pablo Carreño Busta, 6–3, 6–2
Doubles
Seeds
United States Rajeev Ram / United Kingdom Joe Salisbury (first round)
Spain Marcel Granollers / Argentina Horacio Zeballos (first round)
Germany Tim Pütz / New Zealand Michael Venus (withdrew)
Colombia Juan Sebastián Cabal / Colombia Robert Farah (quarterfinals)
Germany Kevin Krawietz / Germany Andreas Mies def. Netherlands Wesley Koolhof / United Kingdom Neal Skupski, 6–7(3–7), 7–6(7–5), [10–6]
2021 Champions
Singles
Spain Rafael Nadal def. Greece Stefanos Tsitsipas, 6–4, 6–7(6–8), 7–5
Doubles
Colombia Juan Sebastián Cabal / Colombia Robert Farah def. Germany Kevin Krawietz / Romania Horia Tecău, 6–4, 6–2
2019 Champions
Singles
Austria Dominic Thiem def. Russia Daniil Medvedev, 6–4, 6–0
Doubles
Colombia Juan Sebastián Cabal / Colombia Robert Farah def. United Kingdom Jamie Murray / Brazil Bruno Soares, 6–4, 7–6(7–4)
2018 Champions
Singles
Spain Rafael Nadal def. Greece Stefanos Tsitsipas, 6–2, 6–1
Doubles
Spain Feliciano López / Spain Marc López def. Pakistan Aisam-ul-Haq Qureshi / Netherlands Jean-Julien Rojer, 7–6(7–5), 6–4
2017 Champions
Singles
Spain Rafael Nadal def. Austria Dominic Thiem, 6–4, 6–1
Doubles
Romania Florin Mergea / Pakistan Aisam-ul-Haq Qureshi def. Germany Philipp Petzschner / Austria Alexander Peya, 6–4, 6–3
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Barcelona Open Banco Sabadell Tennis 2019