Jenson Button made it five wins from six grand prix starts in 2009 by cruising to victory on the streets of Monaco at the head of another Brawn GP 1-2.

The Briton was seldom troubled after making a good start from pole position, aided by team-mate Rubens Barrichello getting a blinder from P3 to jump ahead of front row starter Kimi Raikkonen and prevent the Ferrari driver from benefitting from being able to use his KERS to take the lead. Despite the Brawns being more heavily fuelled than the Finn, Button and Barrichello pulled away over the early laps, cementing the British team's path to victory.

Although Button was unable to hold the lead throughout, with the likes of Raikkonen, team-mate Felipe Massa and Williams' Nico Rosberg all taking turns at the front during the various pit-stop windows, there was little doubt that victory would come his way unless fate intervened.

Barrichello came under greater pressure as Ferrari's resurgence allowed both Raikkonen and Massa to become podium threats, but the Brazilian was ultimately able to back Button up in the third Brawn 1-2 of the year.

While nemesis McLaren's weekend went from bad to worse with Heikki Kovalainen's exit against the Swimming Pool barriers, Ferrari held on to secure a season's best third and fourth, while Mark Webber, Rosberg, Fernando Alonso and Sebastien Bourdais claimed the remaining points positions.

Rosberg had earlier made a daring move to pass Massa when the Brazilian was forced to back off and allow Sebastian Vettel through after overtaking the German by cutting the seafront chicane, but was not a threat after dropping away from a high of fourth. Webber thus proved to be Ferrari's biggest threat but, despite posting some of the fastest laps of the race, the Australian could not sustain his pace consistently and had to settle for fifth.

Alonso's decision to run long from the start did not pay dividends for Renault, while Bourdais had enough in hand to keep Giancarlo Fisichella at bay and deny Force India some measure of recompense after Adrian Sutil's 2008 disappointment. The German was never a factor this time around, and brought up the rear of the field, three places behind former F3 team-mate Lewis Hamilton, who only recovered to 13th from his rear of the grid start.

Full report and result to follow....