World championship leader Quartararo heads his first session of the weekend during Free Practice 4 for the Italian MotoGP at Mugello.

The session was delayed due to lenghtly medical treatment for Jason Dupasquier at the end of the previous Moto3 qualifying session.

MotoGP Qualifying 1, for those outside the top ten after third free practice, including Vinales, Marc Marquez and Rossi, will now get underway.

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Italian MotoGP, Mugello - Free Practice (4) Results
PosRiderNatTeamTime/DiffLapMax
1Fabio QuartararoFRAMonster Yamaha (YZR-M1)1'46.647s4/14348k
2Francesco BagnaiaITADucati Team (GP21)+0.112s15/15351k
3Takaaki NakagamiJPNLCR Honda (RC213V)+0.160s14/14350k
4Alex RinsSPASuzuki Ecstar (GSX-RR)+0.175s4/11353k
5Miguel OliveiraPORRed Bull KTM (RC16)+0.177s4/15355k
6Franco MorbidelliITAPetronas Yamaha (YZR-M1)+0.578s5/13339k
7Jack MillerAUSDucati Team (GP21)+0.586s9/16354k
8Joan MirSPASuzuki Ecstar (GSX-RR)+0.597s10/14352k
9Aleix EspargaroSPAAprilia Gresini (RS-GP)+0.612s5/9352k
10Brad BinderRSARed Bull KTM (RC16)+0.791s13/13358k
11Maverick ViñalesSPAMonster Yamaha (YZR-M1)+0.793s13/13343k
12Alex MarquezSPALCR Honda (RC213V)+0.878s15/16352k
13Pol EspargaroSPARepsol Honda (RC213V)+1.036s4/13348k
14Enea BastianiniITAAvintia Ducati (GP19)*+1.048s6/13358k
15Michele PirroITAPramac Ducati (GP21)+1.052s9/9355k
16Johann ZarcoFRAPramac Ducati (GP21)+1.066s10/15358k
17Marc MarquezSPARepsol Honda (RC213V)+1.149s5/12353k
18Danilo PetrucciITAKTM Tech3 (RC16)+1.171s5/13352k
19Valentino RossiITAPetronas Yamaha (YZR-M1)+1.202s8/14348k
20Lorenzo SavadoriITAAprilia Gresini (RS-GP)*+1.275s10/12352k
21Luca MariniITASky VR46 Avintia Ducati (GP19)*+1.292s5/11348k
22Iker LecuonaSPAKTM Tech3 (RC16)+2.104s8/9346k

* Rookie.
Fastest practice time:
Francesco Bagnaia ITA Ducati 1m 45.456s (FP3)

Official Mugello MotoGP records:
Best lap:
Francesco Bagnaia ITA Ducati 1m 45.456s (2021)
Fastest race lap:
Marc Marquez
SPA Honda 1m 47.639s (2013)

By Peter McLaren