Birmingham and Huddersfield will join Rotherham in Sky Bet League One next season following relegation on final day.
The Blues did their part as they beat Hull 1-0, but dropped out of the division after Plymouth secured their safety with a win by the same scoreline over Hull.
Huddersfield, meanwhile, were all-but-down heading into their trip with Ipswich at Portman Road anyway due to a significantly worse goal difference, but defeat saw them finish the campaign six points adrift.

Sheffield Wednesday's remarkable turnaround under Danny Röhl ended in comfortable safety following a 2-0 victory away at Sunderland.
Blackburn, who were 18/1 outsiders for the drop heading into final day anyway, made sure of their survival with a 2-0 win at champions Leicester.
Sky Bet Championship - final day scores
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