Racing Santander and Levante shared the points in a goalless draw on Sunday as both sides remained winless, while Betis saw off Mallorca to join Real Madrid and Valencia at the top of the La Liga table.
Santander were the better side in the first half with Adrian Gonzalez, Pedro Munitis and Manuel Arana all trying their luck from distance.
Levante goalkeeper Gustavo Munua had to save a Lautaro Acosta shot from close range on 31 minutes, while Jose Barkero's free-kick tested Santander goalkeeper Antonio Rodriguez from 25 yards at the other end.
Acosta's pace caused problems throughout and he should have done better when he blazed over the bar from ten yards after breaking clear on 49 minutes.
Adrian came close again from long range on 66 minutes as Santander continued to press for a victory, but when their midfielder Papa Diop was given his marching orders on 81 minutes for a second yellow card any hope of a win seemed to vanish.
Castro snatches points
Betis, meanwhile, had a fine showing from Ruben Castro to thank for their success. On 42 minutes he hit the post with a left footed shot from the edge of the area and Jorge Molina incredibly hit the bar twice in his attempts to convert the rebound.
Castro was always dangerous and went close again with a right-footed drive on 56 minutes. Just as it seemed Mallorca would escape with a point, Castro finally appeared on 87 minutes to steer the ball home on the right side of the area from a corner.
Elsewhere, Osasuna beat Sporting Gijon 2-1 for their first victory of the season while Rayo Vallecano, and Real Zaragoza shared a point in a goalless draw in Spain on Sunday evening.
Juan Martinez scored first on 28 minutes before a superb volley from Alvaro Cejudo two minutes later gave Osasuna a comfortable first-half lead in Pamplona. Substitute David Barral pulled one back for Sporting just ten minutes before the final whistle after his shot crept under the body of Osasuna goalkeeper Andres Fernandez.
Espanyol beat Athletic Bilbao 2-1 in an entertaining clash to collect their first points of the season. Two goals from forward Sergio Garcia, either side of Fernando Llorente's goal, won the game for the home team.