Football: Golden Gudni lays down law; GRIMSBY 0 BOLTON 1.
He struck the winner - only his second goal of the season - with the cool efficiency of a born striker for Bolton to register a hat-trick of wins over Grimsby.
Bergsson found himself unmarked in the Town penalty area and he took Michael Johansen's pass in his stride to hit a 12-yard cross shot that gave keeper Danny Coyne no chance.
But Coyne denied Bolton a much more comfortable win. He saved some good efforts in the first half before covering himself in glory in the last 10 minutes. Twice he thwarted Bo Hansen and then blocked a close range shot from Eidur Gudjohnsen before clawing another shot from the same striker out of the top corner.
In added time he was lucky when his leg blocked Dean Holdsworth's close range shot.
But Bolton's win, while not emphatic did please boss Sam Allardyce, who said afterwards: "We are playing so well and we are still in the play-off picture although five or six games ago people were writing us off."
Bolton's solid defence always had the measure of Grimsby, missing their main strike duo of Bradley Allen and Lee Ashcroft.
Even Town manager Alan Buckley admitted: "I've had enough of Bolton, I am sick of the sight of them. They were a class above us."STAR MAN: Gudni Bergsson.
Nat Lofthouse would have been proud of his goal.
GRIMSBY: Coyne 6, McDermott 6, Gallimore 6, Lever 7, Donovan 6, Smith 7, Clare 6, Coldicott 6, Pouton 6, Nicholls 6 (Black 6) Groves 6.
BOLTON: Jaaskelainen 6, O'Kane 6, Whitlow 6, BERGSSON 8, Ritchie 7, Johansen 7, Jensen 7, Passi 6 (Elliott 6), Johnston 6, Gudjohnsen 6, Hansen 7.
MANAGER RATINGS: Buckley 6; Alladyce 7.
REFEREE: U Rennie 6.