Second-place Lulea needed to win their final three matches in regulation time and hope Brynas did not add another point to their tally of 97.
However, the chasers saw their three-match winning run end with a 3-2 loss at home to Modo, who sit 13th and came into this on the back of losing a basement battle to HV 71 last time out.
Things appeared to be going to form after 15 minutes, when David Lilja gave the home side the lead, only for Modo to capitalise on a powerplay in the final minute of the first through Victor Berglund's equaliser.
In the second period, Modo had four players sent to the penalty box, yet when Jesper Sellgren put Lulea back in front, it was a rare time when the visitors had a full compliment of players on the ice.
Powerplays would be Lulea's undoing in the third period as well - Riley Woods scored twice for Modo when his side had the advantage within the first six minutes of the period, both for fouls conceded by Oskari Laaksonen.
Just a second win in 60 minutes in their last 10 matches takes Modo to 60 points, as Lulea stay on 89.
That result means first place in the SHL regular season belongs to Brynas, who were promoted from the Allsvenskan last season after just a year out of the top flight.
They secured their place in history in rather weak fashion, losing 2-1 away to Rogle for their fifth loss in their last eight.
It is a sixth win in a row for Rogle, who have moved to fifth place in the standings. Josh Dickinson broke the deadlock in the first period, before Brady Ferguson doubled the advantage 14 minutes into the second.
Jack Kopacka pulled one back at 18:44 in the second, and despite a slew-footing call against Leon Bristedt, Brynas could not find an equaliser in the third period
Shootout at the Scandinavium
Poor recent form had seen Frolunda and Farjestad lose ground on Lulea, but the chance to restore pride was on offer when the two met in Gothenburg for what turned out to be a thriller.
Farjestad came from 3-1 down to lead 4-3, only for David Edstrom to level the scores at 4-4 with 01:28 left in the match and force overtime.
No goals in the extra period saw the match go to a shootout, and it was Frolunda's Filip Cederqvist scored the decisive penalty to earn two points for his team who go back above Farjestad into third.
There was a decisive win for seventh-placed Skelleftea in the race for the top six. A 3-0 win brushed aside Vaxjo who stay eighth but with five points now between the pair.
That means only goal difference is keeping Timra in the top six - they were beaten 2-0 by Linkoping for their fourth loss in a row.
Linkoping's postseason hopes remain hanging by a thread as they stay six points behind Orebro with only two matches to play, after Orebro saw off a late rally from HV 71 to win 3-2.
Finally, Malmo snapped a six-game losing streak to beat Leksand 4-2.
It was do-or-die for the Redhawks, whose victory keeps them within four points of Orebro, with Leksand a point further clear in ninth place.
