Paul Cooke's late converted try handed Hull a shock 25-24 win over Super League champions Leeds in the Challenge Cup final in Cardiff.
Hull: (6) 25
Tries: Tony, Raynor, Whiting Cooke
Goals: Brough (4)
Leeds: (6) 24
Tries: Penalty, Calderwood, Ward, Bai
Goals: Sinfield (4)
Tries from Motu Tony, Gareth Raynor, Richard Whiting and Cooke handed Hull their first Cup title since 1982.
Danny Brough's four goals and a drop goal gave Hull the edge after dominating for most of the match.
Hull led 19-12 with 20 minutes left but six-point tries from Mark Calderwood and Marcus Bai gave Leeds hope.
Leeds also claimed a first-half penalty try, while Danny Ward added another score.
Leeds skipper Kevin Sinfield, who was awarded the Lance Todd Trophy for being man-of-the-match, kicked four goals.
The sides turned around 6-6 at half-time but Hull's aggressive defence and superior kicking game gave them the best of the chances.
It was Leeds who struck first on 13 minutes, ignited by Sinfield's high kick into Hull's in-goal area.
Defenders Nathan Blacklock and Raynor both jumped for the ball and missed, and as Calderwood tried to gather it he was tugged back by the shorts.
After consulting the video official, referee Steve Ganson had no choice in awarding the penalty try.
Sinfield added the extra points but Hull were not put off and soon went close when Richard Horne dived for the Leeds line, only to be blocked by the legs of Ali Lauitiiti.
But Hull did get on the scoreboard in the 18th minute, sparked by a cross-kick from Shayne McMenemy.
Richard Whiting jumped for the ball and palmed it over his head for Tony, who chipped over the top and gathered to flop over the Leeds line.
The white tide was rising and the underdogs went close again towards the half hour mark when Calderwood resorted to punching away a bouncing ball in Leeds' in-goal area.
Next up it was the turn of Kirk Yeaman to dive for the Leeds line, only for the video official to rule he had lost the ball in Rob Burrow's last-gasp tackle.
Inside the final five minutes of the half, Hull again claimed a try when Blacklock was first to another precision chip-through but was ruled offside.
At half-time Leeds took off Great Britain centre Keith Senior, who had struggled to be fit before the match.
They began with renewed vigour but were stunned when Hull's Tony made an interception and searing break, continued by Richard Swain, to set up Raynor with a score in the left corner.
Hull could have been guilty of relaxing as Leeds quickly powered upfield and sent Ward over.
But Leeds were definitely at fault for Hull's next try, when Bai gathered a chip in his in-goal area before inexplicably popping a pass out of the tackle for Whiting to pounce on and score.
Brough added his third conversion and shortly after slotted a drop-goal to edge Hull further ahead.
Inside the last 20 minutes, Leeds hit back to fray Hull nerves when Calderwood produced a stunning solo break from his own half to score under the posts.
And Leeds surged past Hull when Bai made amends for his earlier mistake to gather a lofted cross-kick and score his side's fourth try.
But in a dramatic late twist, Hull worked Cooke under the Leeds posts and Brough stroked the extra points to give his side an unlikely win.
Hull: Tony, Blacklock, Yeaman, Whiting, Raynor, R. Horne, Brough, Dowes, Swain, Carvell, McMenemy, Kearney, Cooke.
Replacements: Thackray, King, Chester, Saxton.
Leeds: Mathers, Calderwood, Walker, Senior, Bai, Sinfield, Burrow, Bailey, Diskin, Ward, Lauitiiti, McKenna, Ellis.
Replacements: McGuire, Poching, Jones-Buchanan, Dunemann.
Referee: Steve Ganson (St Helens)