The competition started on 31 January 1928, and concluded on 29 June 1928, with the second final tiebreaker, held at the Estadio El Sardinero in Santander.
The 1998 Spanish Soccer Tercera División play-offs to Segunda División B from Tercera División (Promotion play-offs) were the final playoffs for the promotion from 1997–98 Tercera División to 1998–99 Segunda División B.
The 1996 Tercera División play-offs to Segunda División B from Tercera División (Promotion play-offs) were the final playoffs for the promotion from 1995–96 Tercera División to 1996–97 Segunda División B.
The 2000 Tercera División play-offs to Segunda División B from Tercera División (Promotion play-offs) were the final playoffs for the promotion from 1999–2000 Tercera División to 2000–01 Segunda División B.