From pole position, Marc VDS rider Marquez made a clean getaway to lead into Turn 1, with Morbidelli vaulting from sixth on the grid to second ahead of Mugello winner Mattia Pasini.

By the end of the opening lap, Marquez had opened up one second from his pursuers, helped by Morbidelli and Pasini scrapping hard over second, and was two seconds clear the following lap.

The Spaniard extended his advantage to as much as four seconds at one stage, and finally crossed the line 3.5s clear of the opposition to take his sixth career grand prix win.

Italtrans rider Pasini took back-to-back podium finishes in second, pulling away from a fading Morbidelli early on as the Italian fell into the clutches of Thomas Luthi (Interwetten) and Miguel Oliveira (KTM).

Several laps later, Luthi forced his way up the inside at Turn 5 for third, and as Morbidelli ran wide and suffering a wobble, Oliveira took advantage to move up to fourth.

Morbidelli ended up dropping behind Forward Racing's Lorenzo Baldassarri in the battle for fifth with 10 laps to go.

Behind Morbidelli, Jorge Navarro (Gresini) scored his best Moto2 result to date in seventh, while another Moto3 graduate, Fabio Quartararo (Pons), fought his way up to eighth in the latter stages.

Completing the top 10 were Xavi Vierge (Tech 3), returning from injury after sitting out the previous round at Mugello, and Hafizh Syahrin (Petronas Raceline), who both pushed Honda protege Takaaki Nakagami down to 11th.

Race results:

Pos.	#	Rider	Bike	Time/Gap
1	73	Alex Marquez	Kalex	42'40.502
2	54	Mattia Pasini	Kalex	3.525
3	12	Thomas Luthi	Kalex	4.452
4	44	Miguel Oliveira	KTM	5.322
5	7	Lorenzo Baldassarri	Kalex	9.930
6	21	Franco Morbidelli	Kalex	14.172
7	9	Jorge Navarro	Kalex	16.192
8	40	Fabio Quartararo	Kalex	18.217
9	97	Xavi Vierge	Tech 3	19.096
10	55	Hafizh Syahrin	Kalex	19.179
11	30	Takaaki Nakagami	Kalex	19.361
12	24	Simone Corsi	Speed Up	19.957
13	32	Isaac Viñales	Kalex	20.984
14	42	Francesco Bagnaia	Kalex	22.220
15	5	Andrea Locatelli	Kalex	23.501
16	68	Yonny Hernandez	Kalex	23.565
17	77	Dominique Aegerter	Suter	24.423
18	41	Brad Binder	KTM	24.776
19	49	Axel Pons	Kalex	25.257
20	87	Remy Gardner	Tech 3	29.261
21	19	Xavier Simeon	Kalex	30.062
22	37	Augusto Fernandez	Speed Up	38.420
23	57	Edgar Pons	Kalex	47.235
24	2	Jesko Raffin	Kalex	47.390
25	27	Iker Lecuona	Kalex	54.588
26	89	Khairul Idham Pawi	Kalex	55.085
27	45	Tetsuta Nagashima	Kalex	57.049
28	22	Federico Fuligni	Kalex	1'07.344
Ret	23	Marcel Schrötter	Suter	2 laps
Ret	62	Stefano Manzi	Kalex	8 laps
Ret	11	Sandro Cortese	Suter	12 laps
Ret	6	Tarran Mackenzie	Suter	20 laps