Chances were to remain at a premium all night for Nigel Clough's men, however, and their lack of incision was punished by Slovenian Koren as he volleyed in from 15 yards after some excellent wing play from Stephen Quinn.
Derby excelled with the ball at their feet, but their exquisite equaliser came from a set-piece after Jacobs hammered home a meek clearance from centre-back Faye from the edge of the penalty box in first-half injury-time.
Stung by his part in the leveller, the Senegal international responded in perfect fashion after the break as he nodded in a devilish corner from Manchester United loanee Robbie Brady.
Buoyed by the appearance from the bench of
top scorer Theo Robinson
with 10 minutes to go, Derby pushed for a late goal but the resolve of Steve Bruce's side was rewarded with their seventh win from 12 Championship away matches.
Derby manager Nigel Clough:
"We're delighted with it [the display] again, we can't ask for any more effort from the players. It's not just effort as well, they are playing some great stuff at times.
"He [goalscorer Michael Jacobs] looked a threat when he was on the pitch and it's good to see him grow, along with the other young players like Jeff Hendrick and Will Hughes. Hopefully they will continue to grow together.
"Hull will be right up there come the end of the season and that's why we are so pleased with how we played against them, there was nothing between the two teams tonight."
Hull manager Steve Bruce:
"There's a long way to go but we're doing well.
"We were 33/1 [for promotion] at the start of the season so we've come under the radar a bit, which is what I wanted.
"Hopefully we can keep it going but, as I say, much will depend on what happens with the loan players. This was our fourth straight away win and to win four on the road in this league at this time of the year is terrific."
Live text and stats
Friday, 21 December 2012
03 Roberts (Davies 87)
12 Jacobs (Robinson 78)
05 Chester yellow card
08 Evans yellow card
10 Koren (Cairney 89)
31 Meyler yellow card
11 Simpson (Proschwitz 76)
Ref: SheldrakeAtt: 25,442
Attempts on target
Attempts off target
90:00+4:59 The referee signals the end of the game.
90:00+3:42 The ball is sent over by Ben Davies, comfortable save by Eldin Jakupovic.
90:00+3:13 David Meyler challenges Will Hughes unfairly and gives away a free kick. Free kick taken by James O'Connor.
90:00+2:42 Will Hughes gives away a free kick for an unfair challenge on David Meyler. Free kick taken by Tom Cairney.
90:00+0:53 Paul Coutts restarts play with the free kick.
90:00+0:53 Booking Caution for Corry Evans.
90:00+0:50 Unfair challenge on Theo Robinson by Corry Evans results in a free kick.
88:13 Eldin Jakupovic restarts play with the free kick.
88:13 Substitution Robert Koren goes off and Tom Cairney comes on.
88:13 Paul Coutts takes a shot. Jack Hobbs gets a block in. Outswinging corner taken from the left by-line by Ben Davies, Richard
Keogh takes a shot. Corner taken by Paul Coutts from the right by-line, Unfair challenge on Abdoulaye Faye by Richard Keogh
results in a free kick.
87:28 Corner taken by Theo Robinson from the right by-line, clearance by Corry Evans. Outswinging corner taken from the right by-line
by Paul Coutts, Richard Keogh takes a shot. Ahmed Elmohamady manages to make a clearance.
86:02 Outswinging corner taken from the right by-line by Paul Coutts, John Brayford takes a shot. James Chester gets a block in.
86:02 Substitution Ben Davies comes on in place of Gareth Roberts.
77:39 Substitution Michael Jacobs leaves the field to be replaced by Theo Robinson.
75:12 Substitution Nick Proschwitz on for Jay Simpson.
73:27 Outswinging corner taken from the right by-line by Paul Coutts.
73:21 Paul Coutts crosses the ball, Jack Hobbs makes a clearance.
71:45 Free kick awarded for an unfair challenge on Michael Jacobs by David Meyler. Free kick taken by Gareth Roberts.
71:37 Centre by Ahmed Elmohamady, clearance by Richard Keogh.
70:48 The ball is crossed by Corry Evans, clearance made by Richard Keogh.
70:10 Centre by Ahmed Elmohamady, clearance by James O'Connor.
69:31 Free kick taken by Craig Bryson.
69:31 Booking David Meyler is cautioned.
69:16 Unfair challenge on Gareth Roberts by Robert Koren results in a free kick.
67:24 Corner taken right-footed by Michael Jacobs from the right by-line, Craig Bryson takes a shot. Jack Hobbs manages to make
a clearance. Effort on goal by John Brayford from inside the box misses to the right of the target.
67:08 Effort from 20 yards by Paul Coutts. Save by Eldin Jakupovic.
64:58 The ball is sent over by Robbie Brady.
64:12 Robbie Brady sends in a cross, clearance made by John Brayford.
63:38 Unfair challenge on Robbie Brady by Paul Coutts results in a free kick. Robert Koren takes the direct free kick.
59:12 Direct effort from the free kick comes in from Michael Jacobs, save by Eldin Jakupovic.
59:12 Booking James Chester receives a yellow card.
58:45 Foul by James Chester on Jeff Hendrick, free kick awarded.
57:46 Corry Evans fouled by Michael Jacobs, the ref awards a free kick. Jack Hobbs takes the direct free kick.
57:01 Effort on goal by Michael Jacobs from inside the area goes harmlessly over the bar.
56:50 Paul Coutts decides to take a short corner.
54:15 Paul Coutts has shot on goal from just outside the box which goes wide of the right-hand upright.
52:52 Inswinging corner taken from the right by-line by Robbie Brady, Abdoulaye Faye challenges Richard Keogh unfairly and gives
away a free kick. Free kick taken by Adam Legzdins.
52:18 A cross is delivered by Stephen Quinn, clearance made by Richard Keogh.
51:04 Craig Bryson challenges Corry Evans unfairly and gives away a free kick. Eldin Jakupovic restarts play with the free kick.
49:18 Robbie Brady provided the assist for the goal.
49:18 GOAL - Abdoulaye Faye:Derby 1 - 2 Hull City Abdoulaye Faye scores a headed goal from close in. Derby 1-2 Hull.
48:59 Corner from the right by-line taken by Robbie Brady,
48:45 Ahmed Elmohamady crosses the ball, blocked by Gareth Roberts.
48:19 Stephen Quinn delivers the ball, Michael Jacobs manages to make a clearance.
48:12 The ball is swung over by Robert Koren, John Brayford manages to make a clearance.
47:38 Corner taken by Robert Koren from the left by-line.
45:01 The second half kicks off.
45:00+1:19 The ref blows to signal half-time.
45:00+0:19 GOAL - Michael Jacobs:Derby 1 - 1 Hull City Michael Jacobs finds the net with a goal from just outside the penalty box to the bottom left corner of the goal. Derby 1-1
45:00+0:05 Outswinging corner taken right-footed by Paul Coutts, Abdoulaye Faye makes a clearance.
44:51 Michael Jacobs produces a cross, Eldin Jakupovic makes a clearance.
44:42 A cross is delivered by Gareth Roberts, James Chester makes a clearance.
43:39 The ball is sent over by Conor Sammon.
42:43 Richard Keogh gives away a free kick for an unfair challenge on Stephen Quinn. Ahmed Elmohamady takes the direct free kick.
41:24 Free kick awarded for a foul by Jeff Hendrick on David Meyler. David Meyler restarts play with the free kick.
38:28 Stephen Quinn fouled by Paul Coutts, the ref awards a free kick. Abdoulaye Faye takes the direct free kick.
36:15 Will Hughes has an effort at goal from just outside the penalty box which goes wide of the left-hand post.
34:48 The ball is crossed by Will Hughes.
34:08 David Meyler challenges Gareth Roberts unfairly and gives away a free kick. Gareth Roberts takes the direct free kick.
33:29 Jack Hobbs takes a shot from long range which goes wide right of the goal.
32:20 Free kick awarded for a foul by Gareth Roberts on David Meyler. Direct free kick taken by Ahmed Elmohamady.
30:40 Shot by Gareth Roberts from outside the box goes high over the target.
29:27 Foul by Stephen Quinn on Gareth Roberts, free kick awarded. Free kick taken by Adam Legzdins.
27:43 Unfair challenge on Michael Jacobs by Ahmed Elmohamady results in a free kick. Direct free kick taken by Gareth Roberts.
27:03 James Chester fouled by Conor Sammon, the ref awards a free kick. Ahmed Elmohamady restarts play with the free kick.
26:39 Craig Bryson takes a shot from 25 yards. Save by Eldin Jakupovic.
25:00 Robbie Brady provided the assist for the goal.
25:00 GOAL - Robert Koren:Derby 0 - 1 Hull City Robert Koren grabs a goal from inside the penalty box low into the middle of the goal. Derby 0-1 Hull.
23:47 Free kick awarded for a foul by Paul Coutts on Robbie Brady. Direct free kick taken by Jack Hobbs.
19:53 The official flags Paul Coutts offside. Free kick taken by Eldin Jakupovic.
18:55 The ball is sent over by Craig Bryson, clearance by Abdoulaye Faye.
14:15 The ball is swung over by Ahmed Elmohamady, clearance made by James O'Connor.
11:53 The ball is crossed by Michael Jacobs, Corry Evans makes a clearance.
9:15 Foul by James Chester on Michael Jacobs, free kick awarded. Direct free kick taken by Michael Jacobs.
8:59 Conor Sammon fouled by Corry Evans, the ref awards a free kick. Paul Coutts restarts play with the free kick.
6:58 Foul by David Meyler on Michael Jacobs, free kick awarded. Michael Jacobs restarts play with the free kick.
6:29 Free kick awarded for a foul by Gareth Roberts on David Meyler. Free kick taken by Ahmed Elmohamady.
3:01 Conor Sammon takes the chance to get an effort at goal. Eldin Jakupovic makes a comfortable save.
0:00 The ref blows the whistle to begin the match.
Live text and data provided by The Press Association.
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