It was a match that will not live long in the memory, as both teams created few dangerous chances in Seville's scorching heat and the game ended with only one shot on target.
The hosts dominated the first half before Atletico piled on the pressure after the break but were frustrated by Betis's disciplined defence.
"We didn't have a good first half. Betis had much more control of the ball, we were unable to generate danger," Atletico manager Diego Simeone told DAZN.
"The second half was the opposite. For me, it was a very good second half in which the team sought to win from the start. But despite having created several situations, we could have solved them better..."
But Atletico were better after the break, with 20-year-old Pablo Barrios coming off the bench to take control of the midfield against a Betis side who ran out of steam as the temperature stayed above 35 Celsius for most of the match.
- Ricardo de Burgos Bengoetxea