Brazil · Tier 2 · 20 clubs
Série B
In US-sports termsBrazil's second tier — running the busiest elevator in world soccer: four up, four down, every single year.
What it is
The second division — 20 clubs, calendar-year season, and regularly home to giants on a bad year (Grêmio, Cruzeiro, Vasco and Corinthians' rivals have all cycled through).
How you get in
Relegated from Série A or promoted from Série C.
What it feeds
Top 4 promoted, bottom 4 relegated — a 20% annual turnover, the most churn of any league pair on our maps.
Four-up-four-down means no club is ever safely big: even Brazil's most decorated names have done recent stretches here.