Sterilgarda Yamaha's Ben Spies won the second World Superbike race at Monza this afternoon but knocked his pace right off on the last two laps in order to make sure he didn't run out of fuel as he did in race one.
Spies crossed the line around two seconds in front of race one winner Michel Fabrizio while Ten Kate Honda's Ryuichi Kiyonari repeated his podium of race one, taking third place ahead of team-mate Jonathan Rea in fourth.
Xerox Ducati's Noriyuki Haga crashed out of his 250th WSB at the Parabolica with just two laps gone. The Japanese rider looked to have a problem on lap one as he went backwards through the field as they went into the Ascari corner and found himself 15th as they crossed the line.
As Spies stretched away at the front, consistently lapping half a second faster than Fabrizio, Yukio Kagayama and Britain's Jonathan Rea, Kiyonari was beginning to sneak up on the battle for second.
With 14 laps to go, and Spies nearly two seconds up the road, Kiyonari passed team-mate Rea and set about the rear wheel of the Italian as Kagayama was forced to take a ride-through penalty.
Tom Sykes and Max Biaggi had a race-long scrap for fifth place and it looked like Sykes was going to keep the Roman Emperor behind him but Biaggi managed to scrape past and eek out a lead and Sykes settled for sixth.
Stiggy Honda's Leon Haslam showed once again he has the pace to run at the front, making up for his first-race DNF by hauling himself up from 17th on the grid to finish in seventh and doing the same laptimes as the leaders.
Further down the field, Tommy Hill got a great start and hauled himself up to 11th place, just behind Shane Byrne but the pair dropped back down the field again with Hill finishing in 16th and Byrne suffering a 20-second penalty.