Ronaldo was the first of the two superstars to breach the 600-goal milestone, when he found the back of the net for the Bianconeri against Inter Milan on 27 April, which took his overall club goals tally to 601.
Barcelona, already crowned as champion, was trailing 1-0 against the home side but Messi quickly overturned the score by scoring twice in the 31st and 32nd minute. Both goals arose from Eibar defenders' mistakes as they failed to track his run on both occasions.
France World Cup victor and PSG striker Kylian Mbappe was runners up with a 91.3% match while Manchester City forward Sergio Aguero finished third with 91.1% similarity. The Eibar game was his 686th game for the Catalans at the senior level. He spend six seasons at Manchester United and nine seasons at Real Madrid, before moving to Serie giants Juventus last season.
It is the third time in a row Messi has received the award. With that he also equalled Telmo Zarra's record of winning the most Pichichi awards.
In addition, Messi has also scored 50 goals in a single season for the sixth time in his career, as many as arch-rival Ronaldo has.