Seemingly unable to run the same pace he was managing at the original start, Kiyonari would find himself down to sixth position on the road behind Biaggi and Fabrizio too. Of the two, Fabrizio was Kiyonari's biggest threat for the final podium position on aggregate, the Italian duly grabbing it on the very final lap when he managed to slipstream his way past Biaggi and use the clear air to pump in a strong late effort.
Up at the front, though, Spies was cruising to victory for Yamaha, gradually pulling out his advantage over Checa to cross the line four seconds up on the Spaniard, but almost ten seconds in total.
The best result of the season for Checa, he was comfortably classified ahead of the hard charging Fabrizio, the Italian's last lap effort ensuring he keeps Spies honest in the battle for second in the standings.
Despite fading away in the closing stages, Kiyonari's strong showing at the original start meant he could cling on to fourth, less than a second ahead of Rea, who would come away with fifth, despite having finished a physical third.
Battling up from 16th on the grid, Biaggi was sixth, the Italian utilising the outstanding straight line speed of the Aprilia RSV-4 to pull off some impressive moves down the long home straight.
While he wasn't quite as prolific as he had been in the early stages, seventh position for Jamie Hacking marks Kawasaki's best World Superbike finish since Vallelunga 2007.
His cause was certainly aided by a thrilling exchange for eighth position, which came down to a fight between six riders, the owner of the place changing constantly in the final laps.
Haga had held on to the spot for the majority of the race, but the out of sorts championship leader found himself being swallowed up by Leon Haslam and Shane Byrne, the latter recovering from a terrible start that saw him end the opening lap in 16th position.
While both got the jump on Haga by lap 16, the gulf of time they needed to make up on Haga proved to be too much for both of them and they were forced to contend with tenth and 11th, Haslam ahead of Byrne. Even so, Haga would still be demoted to ninth at the finish after being leapfrogged by Jakub Smrz, the Czech rider making stealthy progress up the field to snatch the position on the final lap of the race.
Elsewhere, Yukio Kagayama
finished 12th, ahead of Tom Sykes – his first non top ten finish of the season -, Gregorio Lavilla and Troy Corser.