Vinales tops final test day, Marquez back on 2019 bike
Maverick Vinales concluded MotoGP pre-season testing in Qatar fastest of all, as Honda appeared to hit a crisis point after Marc Marquez reverted to a 2019-spec bike.
Honda's troubles this pre-season have been well-documented, with both LCR rider Cal Crutchlow and world champion Marquez – who is also riding below full fitness – having been critical of the new RC213V's poor turning.
With little progress seemingly being made in Qatar, Honda took one of Takaaki Nakagami's year-old bike's from his side of the LCR garage for Marquez to try.
Though it's unclear what bike he used to set his best time, Marquez ended the test seventh with a 1m54.145s lap – 0.090 seconds ahead of 2019 Honda-mounted Nakagami.
Sepang test pacesetter and Sunday's fastest man in Qatar Fabio Quartararo was first out on track, and set the early pace with a 1m56.255s before eventually improving to a 1m55.116s.
This stood for well over an hour, before the Petronas SRT Yamaha rider improved on his benchmark with a 1m54.953s.
With around three and a half hours of running remaining, Vinales deposed Quartararo with a 1m54.953s as he continued to refine the 2020 YZR-M1's set-up.
As the session tipped into its final two hours, the sister Petronas bike of Franco Morbidelli set the first 1m53s lap of the test with a 1m53.891s, while teammate Quartararo suffered a technical issue and stopped at Turn 11 around about the same time.
Vinales had one last stab at the timesheets in the closing stages, and emerged fastest of all with a 1m53.858s to solidify his status as pre-season favourite for victory in the first race in Qatar next month.
Morbidelli made it a Yamaha 1-2, while Suzuki's Alex Rins edged ahead of Quartararo and Pramac Ducati's Jack Miller.
Joan Mir was sixth on the sister Suzuki, with Marquez, Nakagami, an impressive Brad Binder on the KTM, and Ducati's Andrea Dovizioso rounding out the top 10.
Valentino Rossi ended the day 0.474s off his teammate in 12th, but suffered a small crash in the latter stages which interrupted his run plan.
Aleix Espargaro was 13th on the Aprilia, beating KTM-mounted brother Pol and the Avintia Ducati of Tito Rabat.
Crutchlow, riding sore after his crash on Sunday, made a significant improvement in laptime to a 1m54.830s on Monday – but was still only quick enough for 18th.
| Pos | Rider | Bike | Time | Gap | Laps |
| 1 | Maverick Vinales | Yamaha | 1:53.858 | 84 | |
| 2 | Franco Morbidelli | Petronas Yamaha | 1:53.891 | +0.033 | 52 |
| 3 | Alex Rins | Suzuki | 1:54.068 | +0.210 | 40 |
| 4 | Fabio Quartararo | Petronas Yamaha | 1:54.077 | +0.219 | 58 |
| 5 | Jack Miller | Pramac Racing | 1:54.105 | +0.247 | 69 |
| 6 | Joan Mir | Suzuki | 1:54.129 | +0.271 | 42 |
| 7 | Marc Marquez | Honda | 1:54.149 | +0.291 | 61 |
| 8 | Takaaki Nakagami | LCR Honda | 1:54.239 | +0.381 | 40 |
| 9 | Brad Binder | KTM | 1:54.283 | +0.425 | 58 |
| 10 | Andrea Dovizioso | Ducati | 1:54.312 | +0.454 | 55 |
| 11 | Francesco Bagnaia | Pramac Racing | 1:54.326 | +0.468 | 55 |
| 12 | Valentino Rossi | Yamaha | 1:54.332 | +0.474 | 47 |
| 13 | Aleix Espargaro | Aprilia | 1:54.432 | +0.574 | 56 |
| 14 | Pol Espargaro | KTM | 1:54.623 | +0.765 | 49 |
| 15 | Tito Rabat | Avintia Ducati | 1:54.674 | +0.816 | 56 |
| 16 | Danilo Petrucci | Ducati | 1:54.752 | +0.894 | 56 |
| 17 | Johann Zarco | Avintia Ducati | 1:54.760 | +0.902 | 66 |
| 18 | Cal Crutchlow | LCR Honda | 1:54.830 | +0.972 | 70 |
| 19 | Miguel Oliveira | Tech3 KTM | 1:55.008 | +1.150 | 48 |
| 20 | Iker Lecuona | Tech3 KTM | 1:55.301 | +1.443 | 40 |
| 21 | Alex Marquez | Honda | 1:55.519 | +1.661 | 47 |
| 22 | Bradley Smith | Aprilia | 1:55.916 | +2.058 | 55 |
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