The meeting, which took place in Valencia at Mestalla, ended with a score of 2: 0 in favor of the guests.
Betis won with goals from Sergio Canales and Cristian Tello, who scored in the 19th and 74th minutes.
Valencia's Russian midfielder Denis Cheryshev did not take part in the match.
In another match of the day, Real Sociedad defeated Getafe 3-0 at home.
"Betis", having gained nine points, tops the standings of Examples.
Sociedad, with eight points, are second, Getafe, with seven points, fifth, and Valencia, also with seven points, sixth.
Earlier it was reported that Atletico and Villarreal have not identified a winner in the match Examples.