Malmo picked up an important three points away at AIK, click here to read Flashscore's report of the 1-0 win from Strawberry Arena.
There was no fifth win in a row for Sirius but an equaliser four minutes from time to preserve their unbeaten start will feel like a victory, especially away at a Hacken side who have won two and drawn three of their five matches so far.
The home side took the lead midway through the first half with a 25-yard screamer into the top corner from Mikkel Rygaard, and 37 minutes in it was 2-0 when Brice Wembangomo played Gustav Lindgren through to finish in style.
But the Uppsala side had hope again three minutes later when Robbie Ure stabbed home from six yards, and after plenty of second-half pressure, they finally found the leveller when Mohamed Soumah headed in Neo Jonsson's corner.
Sirius' lead at the top has extended to three points after Elfsborg tasted defeat for the first time in the 2026 season, going down 2-1 to a Kalmar side who picked up their first win since promotion.
It looked to be more of the same for both sides when Frederik Ihler broke the deadlock five minutes in after Taylor Silverholt's pass, but Kalmar hit back just eight minutes later when Charlie Rosenqvist notched his third of the season.
Charles Sagoe Jr assisted the equaliser, and he was the provider again for the winning goal approaching the hour mark - his low cross was met by Anthony Olusanya, who got across his man at the near post to score from six yards out. The win lifts Kalmar out of the bottom three, as Elfsborg stay second.
The league champions are continuing their recovery after their poor start, and are now three unbeaten thanks to two second-half goals that saw them past a Halmstad side who fall to last place.
Mjallby broke the deadlock 11 minutes after the break when the visiting goalkeeper came out and failed to claim a high ball, which was diverted into the path of Jacob Bergstrom and tapped the ball into the empty net.
Six minutes from time, the home side rounded off the win when Olle Lindberg found Villiam Granath, whose first league goal in Mjallby colours came against the side he joined from. MAIF move onto seven points, while Halmstad have one draw and four defeats so far this season.
Finally on Monday, the points were shared between Orgryte and Degerfors, as the hosts ended a run of two defeats and the away side went unbeaten in successive games for the first time this season.
Degerfors thought they had done enough to win it after they took the lead with a quarter of the game to go - brilliant work from Nahom Girmai teed up Gideon Yiriyon to finish, until the final 10 minutes, when Nasiru Moro brought down Noah Christoffersson inside the box.
Tobias Sana strode confidently and put away the penalty that keeps Orgryte two points clear of the drop zone, while Degerfors have maintained top-half status.