Same machine as England — solid lines for league finish, gold dashed for trophies, gray for the elevator — powered by the two biggest club brands in the sport. Real Madrid and Barcelona tower over La Liga the way no American league would ever allow, and their meetings (El Clásico) stop the country twice a year.
Imagine if the Lakers and Cowboys shared one league and won most of its titles between them for a century. That's La Liga: Real Madrid and Barcelona hold the overwhelming majority of championships, budgets nobody can match, and a rivalry (El Clásico) that doubles as a political and cultural fault line.
The fun is in the resistance: Atlético Madridcrash the duopoly every few years, and Sevilla built a dynasty out of winning the Europa League instead. Spain's table has two races — the title, and “best of the rest.”
The Copa del Reyis Spain's March Madness — early rounds are single games hosted by the small club, so every January some fourth-tier town squeezes Barcelona onto a tiny pitch and dreams. Winner takes a Europa League ticket.
The Supercopa shows the other side of modern soccer: Spain expanded it to four teams and moved it to Saudi Arabia for the hosting fee — the NFL-in-London playbook, but for silverware.
The wiring into Europe is identical to England's— that's the whole point of the pyramid.