A weakened Hull recorded a comfortable victory at Crewe, with Michael Bridges getting them off to a great start with his first goal of the year.
Bridges netted from the spot a minute before the break after Julien Baudet handled in the box.
Richard Garcia doubled the lead on 55 minutes when he struck with a stunning 25-yard right-footed shot.
And Stephen McPhee nicked the ball past keeper Ben Williams to make it three in the 70th minute.
Crewe: Williams, Woodards, McCready, Baudet, Jones, Moore (Carrington 75), Rix, Roberts, Schumacher (Bopp 71), Miller, Pope.
Subs Not Used: Tomlinson, Cox, O'Donnell.
Hull: Duke, Doyle, Turner, Brown (Ricketts 75), Delaney, Garcia (Marney 76), Livermore, Featherstone, Elliott, Bridges (Ashbee 84), McPhee.
Subs Not Used: Myhill, Windass.
Goals: Bridges 44, Garcia 55, McPhee 70.
Ref: P Miller (Bedfordshire).