Kenny Deuchar's opening goal that got them on their way to the six-goal demolition over Peterhead was their 100th of their season.
Their 80 points total equals the previous best points tally in 1995, while Deuchar's sixth hat-trick of the season equalled Jimmy Greaves' long-standing record.
Deuchar got Gretna off to a flyer in the third minute when he powered in a header to Ryan Baldacchino's right-wing cross.
Midfielder Ryan McGuffie made it 2-0 in the 61st minute when he lashed in a stunning 25-yard volley and the game was over as the contest just a minute later when David Bingham flashed a low drive into the roof of the net off keeper Paul Mathers.
Peterhead pulled one back in the 70th minute when David Hagen's inswinging corner was adjudged to have struck Deuchar's hand and Martin Bavidge stepped up to coolly fire in from the penalty spot.
But seven minutes later Deuchar charged down a free-kick in his own half and Baldacchino was sent clear down the wing to cross for Ryan McGuffie to thump in a header for 4-1.
Winger Baldacchino got to the by line and crossed low for Deuchar to lash number five into the roof of the net from close range in the 87th minute.
In the dying seconds Deuchar saved his best until last as his exquisite chip from 30 yards sailed over the top of stranded keeper Paul Mathers and sparked the celebrations at Raydale Park.