FA Cup semi-finalists Cardiff City followed up their 2-0 triumph over Middlesbrough with this Championship win over Hull at Ninian Park.
A second-minute goal from midfielder Stephen McPhail was enough to give the Bluebirds victory as they sought to climb the table.
Hull began in a play-off place the Bluebirds covet and fought hard, but fell short as the hosts held on.
Steven Thompson's header gave McPhail the chance to strike home.
Cardiff City boss Dave Jones:
"The problem is we were looking to put a fresh player on, but we were putting a tired player on.
"But I can't fault them."
Hull manager Phil Brown:
"It was very frustrating, particularly in the first half, and their goal wasn't even a chance. This was a big opportunity for us but we missed it.
"In the second half we had plenty of opportunities to get the ball into the danger area but the spark was missing."
Cardiff: Enckelman, McNaughton (Ledley 42), Loovens, Johnson, Capaldi, Whittingham, McPhail, Scimeca (Rae 62), Sinclair, Parry (Feeney 90), Thompson.
Subs Not Used: Oakes, Purse.
Booked: Capaldi, Loovens, Scimeca.
Goal: McPhail 2.
Hull: Myhill, Ricketts, Turner, Brown (Clement 24), Dawson, Garcia, Marney, Ashbee, Pedersen, Fagan, Campbell (Hughes 68).
Subs Not Used: Tyler, Walton, France.
Booked: Turner.
Att: 17,555
Ref: Lee Probert (Wiltshire).
~RS~q~RS~~RS~z~RS~01~RS~)