The inaugural MotoGP test at Indonesia's new Mandalika circuit began in wet (and dirty) conditions on Friday morning.

Johann Zarco was fastest by the end of the opening hour, when the rain had stopped, with the session then red-flagged to try and clean the dirty surface.

After a lengthly clean-up, the track re-opened for testing shortly before midday, with Francesco Bagnaia (on slick tyres) leading an all-Ducati top three by 1pm.

Improving conditions mean lap times have tumbled ever since, Marc Marquez leading a Honda one-two as of 2pm, but having dropped to 19th by 3pm - such was the pace of improvements - when world champion Fabio Quartararo was fastest.

As of 4pm, Vinales - the final rider on track today - has jumped to the top for Aprilia, ahead of Jorge Martin's Ducati and Pol Espargaro's Honda.

The three-day outing, which follows hot on the heels of a two-day Sepang test, marks the final chance for official MotoGP track time before next month's Qatar season-opener.

Gresini Ducati's Enea Bastianini was a surprise fastest from the Aprilia of Aleix Espargaro in the rain-interrupted final day at Sepang, which saw the fastest ever two-wheel laps of the Malaysian track and the top ten riders (from five manufacturers) covered by 0.299s

As well as the ever present threat of more rain, MotoGP teams and riders have the added challenge of learning a new circuit and working through an expanded range of Michelin tyres in preparation for the March 18-20 race weekend, the first Indonesian motorcycle grand prix since 1997.

Testing at Mandalika takes place from 9am to 5pm, but day one has been extended until 5:45pm due to the earlier clean-up…

2022 Official Mandalika MotoGP Test - Friday (4pm)
  RiderNatTeamTime
1^14Maverick VinalesSPAAprilia Racing (RS-GP)1m 33.147s
2=Jorge MartinSPAPramac Ducati (GP22)+0.211s
3^9Pol EspargaroSPARepsol Honda (RC213V)+0.308s
4^9Joan MirSPASuzuki Ecstar (GSX-RR)+0.488s
5^11Aleix EspargaroSPAAprilia Racing (RS-GP)+0.488s
6^1Alex RinsSPASuzuki Ecstar (GSX-RR)+0.515s
7˅6Fabio QuartararoFRAMonster Yamaha (YZR-M1)+0.709s
8^11Marc MarquezSPARepsol Honda (RC213V)+0.741s
9=Raul FernandezSPAKTM Tech3 (RC16)*+0.819s
10^7Luca MariniITAMooney VR46 Ducati (GP22)+1.018s
11^10Alex MarquezSPALCR Honda (RC213V)+1.057s
12˅9Miguel OliveiraPORRed Bull KTM (RC16)+1.123s
13˅3Andrea DoviziosoITAWithU Yamaha RNF (YZR-M1)+1.123s
14˅10Enea BastianiniITAGresini Ducati (GP21)+1.158s
15^7Francesco BagnaiaITADucati Lenovo (GP22)+1.171s
16˅5Franco MorbidelliITAMonster Yamaha (YZR-M1)+1.227s
17˅12Takaaki NakagamiJPNLCR Honda (RC213V)+1.253s
18^5Brad BinderRSARed Bull KTM (RC16)+1.268s
19˅11Jack MillerAUSDucati Lenovo (GP22)+1.342s
20˅6Remy GardnerAUSKTM Tech3 (RC16)*+1.456s
21˅15Johann ZarcoFRAPramac Ducati (GP22)+1.557s
22˅4Fabio Di GiannantonioITAGresini Ducati (GP21)*+2.113s
23˅3Marco BezzecchiITAMooney VR46 Ducati (GP21)*+2.329s
24=Darryn BinderRSAWithU Yamaha RNF (YZR-M1)*+3.703s

*Rookie

Key:
^X Rider is X positions higher than previous hour.
= Rider is same position as previous hour.
˅X Rider is X positions lower than previous hour.

2021 Mandalika WorldSBK lap records:
Best lap:
Toprak Razgatlioglu TUR Yamaha 1m 32.877s
Fastest race lap:
Toprak Razgatlioglu TUR Yamaha 1m 34.288s