Dukurs travelled across Germany from the last round in Altenberg to Koenigssee with five victories from six races so far this season and 17 from the last 22 World Cup rounds.
The 28-year-old effectively had win number six for the season wrapped up at the halfway stage after posting the quickest time by almost half a second after the first run.
Dukurs was not to be denied during the second run and even pushed his rivals further back to win by 0.47seconds with Frank Rommel second and Alexander Tretiakov third.
The win also sees Dukurs take the early lead in the race for the Triple Trophy, a newly-established high-money competition incorporating the last three World Cup rounds.
Dukurs was the only slider to break the 51-second barrier in the first run, posting 50.93 with Germany's Rommel 0.42 behind on home ice in Koenigssee.
He led team-mate Alexander Kroeckel by 0.09, the German level with Russian Tretiakov in third, while Dukurs' older brother Tomass was joint fifth 0.23 further adrift.
And Martins Dukurs took his advantage from 0.42 to 0.47 after posting 51.14 on his second outing with Rommel maintaining second and Tretiakov moving up to third.
The Russian swapped placed with Kroeckel after going far quicker than him second time out with Tomass Dukurs finishing just 0.01 behind the German in fifth.
Meanwhile British slider Dominic Parsons had the best result of his fledgling career to date as he impressively jumped from 15th after the first run to seventh after the second.
Parsons bettered his first run effort from 52.39 to 51.74 to break into the top ten while fellow Brit Kristan Bromley, the 2008 World Cup champion, feel from 14th to 18th.
That marks Bromley's worst result of the season so far with team-mate Ed Smith suffering a similar fate as he failed to improve his first round ranking of 19th.