Derby County lead Blackpool 2-0 at half-time thanks to strikes from Theo Robinson and John Brayford.
Nigel Clough's men had the first opportunity of the match through Theo Robinson, whose shot was parried by Matt Gilks for Stephen Crainey to quickly clear.
Robinson caused all kinds of problems for the managerless Seasiders, and he gave the hosts the lead on 12 minutes when he found space inside the box and fired into the bottom corner.
Good defending from Richard Keogh preserved Derby's advantage. The full-back produced a vital block to deny Gary Taylor-Fletcher's in the 23rd minute.
The Rams went further in front just after the half-hour mark when Jeff Hendrick found John Brayford inside the box and the defender struck on into the top corner to give them a two-goal cushion at the break.
