In the first official match under coach Carlo Ancelotti, who returned to Real after six years to replace Zinedine Zidane, the Royal Spanish team played in the familiar 4-3-3 formation.
As for Alaves, the squad has not changed much compared to when it ranked 16th last season.
Benzema scored a double in the first round.
Alaves is considered a `good prey` for Real, having lost 26 matches and received 85 goals in the history of confrontation.
But in the first half, the gap in class as well as the difference in confrontation was not shown much.
Alaves, thanks to that, pose many dangers.
At the other end of the field, goalkeeper Antonio Pacheco did not encounter too many difficulties.
Alaves 1-4 Real
Real suddenly accelerated at the beginning of the second half, making Alaves unable to keep up and revealing many gaps in defense.
The first goal acted as a stimulant for Real.
Defender Nacho scored when joining the attack.
Real almost decided the match with a goal to increase the score to 3-0 six minutes later.
In the second half, Real made only one mistake.
With a two-goal advantage, coach Ancelotti continuously replaced five players from the 66th minute. They all belonged to the top two lines, including Isco, Vinicius, Rodrygo, Asensio and Luka Jovic, allowing Real to maintain pressure.
Thanks to a strong victory on the opening day, Real took the lead in La Liga.