Dukurs took to the penultimate World Cup round, which doubled as the European Championships, with a 198-point lead at the top of the standings following another stunning season so far.
From the seven races before Igls the 28-year-old, who won Olympic silver at Vancouver 2010, has won six of them and he took a seventh, and yet another European title, in style in Austria.
Dukurs lowered his own track record by 0.01seconds with his first run, clocking 52.68, before completely blowing it out of the water on his second after posting 52.45.
In a sport where hundredths of a second separate the top three, Dukurs efforts saw him beat Alexander Tretiakov, the last man to win the World Cup title before the Latvian, by 0.75.
And, with 225 points available for victory, Dukurs heads in the final round in Sochi next month with a lead over 223 over elder brother Tomass and only a miracle preventing him taking the title.
Before then are the World Championships, where Dukurs is bidding for a third successive title, in St Moritz while in Sochi he has the chance to claim the newly established Triple Trophy.
Incorporating the last three rounds of the season, the Triple Trophy rewards those that win all three with Dukurs on course to do so having now claimed four successive victories.
Dukurs aside, Tretiakov was himself a clear second, 0.60 ahead of Tomass, for European silver after runs of 53.06 and 52.82 gave him an overall time of 1:45.88minutes.
Likewise Tomass Dukurs was third by 0.48 ahead of fourth-placed Russian Sergei Chudinov for European bronze while Briton Kristan Bromley was tenth overall and the eighth best European.
British teammate Dominic Parsons was once place behind in both while Ed Smith was 14th overall for 11th in the European rankings in Igls.