Fernando Alonso revived his Formula One title chances with a win for Ferrari in Italy
Alonso recoverd from a shakl start to the race, where he lost pole position to McLaren's Jenson Button at the first corner, but retook the lead to hold on for a 2.9-second victory.
"We made the right choices in the right moments," Alonso said after his third victory of the season. "With the result we gain some confidence and motivation for the whole team not to give up. (But) we need to remain calm. We need to find some consistency, that would be the key."
Alonso was making his debut at Monza for the Italian team and it was Ferrari's first victory at its home track since Michael Schumacher won in 2006.
Felipe Massa of Ferrari was third and Red Bull's Sebastian Vettel came fourth.
Red Bull driver Mark Webber, who finished sixth, leads the overall standings with 187 points. Lewis Hamilton crashed out on the first lap and is second with 182. Third-place Alonso has 166, Button 165 and Vettel 163.
F1 now departs Europe for three races in Asia, starting with the Singapore GP night race on 26 Sept.
Provisional driver and constructor standings after the Italian Grand Prix:
1. Mark Webber (Australia) Red Bull 187 points
2. Lewis Hamilton (Britain) McLaren 182
3. Fernando Alonso (Spain) Ferrari 166
4. Jenson Button (Britain) McLaren 165
5. Sebastian Vettel (Germany) Red Bull 163
6. Felipe Massa (Brazil) Ferrari 124
7. Nico Rosberg (Germany) Mercedes GP 112
8. Robert Kubica (Poland) Renault 108
9. Michael Schumacher (Germany) Mercedes GP 46
10. Adrian Sutil (Germany) Force India 45
11. Rubens Barrichello (Brazil) Williams 31
12. Kamui Kobayashi (Japan) Sauber 21
13. Vitaly Petrov (Russia) Renault 19
14. Nico Huelkenberg (Germany) Williams 16
15. Vitantonio Liuzzi (Italy) Force India 13
16. Sebastien Buemi (Switzerland) Toro Rosso 7
17. Pedro de la Rosa (Spain) Sauber 6
18. Jaime Alguersuari (Spain) Toro Rosso 3
19. Heikki Kovalainen (Finland) Lotus 0
20. Karun Chandhok (India) HRT 0
21. Lucas Di Grassi (Brazil) Virgin 0
22. Jarno Trulli (Italy) Lotus 0
23. Bruno Senna (Brazil) HRT 0
24. Timo Glock (Germany) Virgin 0
25. Sakon Yamamoto (Japan) HRT 0
1. RedBull - Renault 350 points
2. McLaren - Mercedes 347
3. Ferrari 290
4. Mercedes 158
5. Renault 127
6. Force India - Mercedes 58
7. Williams - Cosworth 47
8. BMW Sauber - Ferrari 27
9. Toro Rosso - Ferrari 10
10. Lotus - Cosworth 0
10. HRT - Cosworth 0
10. Virgin - Cosworth 0