The Campeonato Unico was played in 1930 when the Cuban Winter League collapsed early in the campaign due to poor attendance.
Almendares claimed the title with a 9-4 record. Dolf Luque managed the team, which featured Martin Dihigo (2-0 on the mound, .333 at the plate). OF Clint Thomas batted .393 and C José María Fernández .409. They featured two underachieving Hall-of-Famers, veteran 1B Pop Lloyd (.236) and 3B Judy Johnson (.240).
For Marianao, Merito Acosta guided the club to a 9-5 record, half a game out. Claude Jonnard (5-1) led the league in wins while OF Oscar Charleston (.373, .567 SLG) led the league in average, triples (5) and runs (12). Their Hall-of-Famer also disappointed as 2B Billy Herman hit an empty .229.
Habana was managed by Mike Gonzalez; they were third at 5-9. Johnny Allen (2-2) led the staff while 2B Chuck Dressen (.347) led the league with 5 steals and scored 10 runs. Alejandro Oms only hit .182 in the outfield and had no extra-base hits.
Cienfuegos was piloted by Pelayo Chacon and finished at 2-7. Jose Abreu (2-1) got both wins while Ted Trent (0-2) and Luis Tiant Sr. (0-1) were among the winless. Cool Papa Bell (.342, 2 SB) was their most effective hitter.