The yellow-clad home team started best and initially had the most half chances to score the first goal of the match at Borås Arena.
- This is magical, says Elfsborgs coach Jimmy Thelin in Discovery + broadcast after the match.
Rasmus Alm was given a chance to change things around.
He was released by Per Frick and finished, but a nice save by Örebro's Bobby Allain kept the goal zero.
Three minutes later, Elfsborg received an extremely dubious penalty when a shot hit Örebro captain Nordin Gerzic's arm.
Frick stepped forward to take care of it - and missed.
The experienced striker tried a "European Championship-inspired penalty" and shot outside.
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Doubtful punishment for Elfsborg - and Per Frick misses
New chance
In the 60th minute, Elfsborg then got a new opportunity from eleven meters - after a new hand situation, which this time was clearer.
And it did not take care of Frick.
Instead, André Ibsen Römer got the chance and the Dane put 1-0 for the home team.
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Römer puts 1-0 on penalties
After 84 minutes, the home side was awarded a penalty.
Deniz Hümmet, who is on loan from Elfsborg to Örebro, stayed ahead and set up the receipt.
But it was not over there.
Boråsarna got a last position in the 97th minute - and Frederik Holst coolly placed the decisive 2-1 goal in the 97th minute.
Elfsborg thus carves in the third straight win in the results line.
The loss is Örebro's fifth straight away.
They are now facing Östersunds FK in the next round, for Örebro's part awaits a home match against Hammarby.