The wing spiker was inspirational for the home side, weighing in with 19 points and powering his side forward as they made it two wins from two in the VNL.
Kubiak was the star but it a hugely impressive all-round performance from the Poles - Lukasz Kaczmarek was also on fire and finished with 16 points - who were roared on by 11,000 fans at the atmospheric Tauron Arena.
New coach Vital Heynen would have been apprehensive about Russia’s giant Dmitriy Muserskiy following his own blockbusting start in the demolition of Canada on Friday but the dangerous 29 year-old was kept relatively quiet - he ended up with 17 which was simply not enough to stem the Polish tide.
Romanas Shkulyavichus and Alexander Markin both weighed in with seven points yet there were not enough sizable contributions from the rest of the squad who must now dust themselves down ahead of their next match with Korea.
Muserskiy's serves may have topped 120 kph but his team-mates were unable to assert consistent streams of pressure to knock Kubiak and friends off their game.
It was the 50th meeting of these two European superpowers - Poland’s only ever Olympic volleyball gold came against the Russians in 1976 - with both teams entering the fevered atmosphere in fine form following impressive opening match victories.
Poland may be carrying the weight of an expectant nation but for Russia, who are missing key players for this inaugural VNL competition, the pressure was undoubtedly on.
Beating Canada on Friday was a superb start and helped get Muserskiy into the swing straight away. The middle blocker started very well here in what was a tight, power packed beginning.
Polish coach Heynen saw a number of his stars all contribute in helping swat aside Korea in straight sets - Artur Szalpuk (16), Jakub Kochanowski (12), Dawid Konarski (10) and Aleksander Sliwka (10) - so he would have been delighted to see the likes of captain Kubiak and Bartosz Bednorz come to the party early on and help establish an early 15-11 lead.
The Russians were really struggling to establish a foothold in the game - Poland’s speed of movement and tactical awareness setting them apart.
Kubiak was serving at 116 kph - he was literally too hot to handle.
Muserskiy was being kept quiet, mainly down to his team’s inability to maintain a service run and the quality of Poland’s overall play and relentless pressure which helped them ease into a comprehensive first set lead.
The workload was being shared and the momentum was, undoubtedly, with the home side. Russia needed a good start to the second - yet Muserskiy’s very first serve smashed into the net.
Coach Sergei Shilapniko must have begun to fear the worst and although his team managed to settle down, Poland’s impressive form in the opener continued apace.
The challenge was to keep the heat on.
There was a four point cushion for Heynen as the first technical time-out was called yet Muserskiy began to find his feet from the service line allowing the Russians to draw level at 10-10.
Poland were unable to reproduce the red-hot form of the first set and when they fell 14-16 down, now was the time to see if they really were contenders for the title.
Kubiak was less effective and when another thumping spike from Muserskiy smashed him on the head, the Polish skipper needed to galvanize his troops or risk allowing Russia back into the contest.
At 22-22, the match was on a knife-edge but a brilliant block from Piotr Nowakowski gave the home team two set points before the middle-blocker unleashed a devastating spike to seal the set.
Kubiak came to the fore in the third, dragging himself all over the court and helping produce some wonderful passages of play.
The Polish fans in the stands were playing their part, singing and dancing their hearts out as their team eased into a 17-12 lead, a position of power which stayed in their grasp until the very end.
A brilliant block from the skipper helped set up four match points and although two went begging, it was left to the excellent Kaczmarek to seal the deal.