Marc Marquez made a mockery of concerns that the 2016 Honda RC213V's acceleration deficit would play into his rival's hands by setting the early pace at the third MotoGP round of the year in Austin, Texas.

Seeking to maintain his 100 percent record of winning every premier class race in the USA since the beginning of 2013, Marquez spent much of FP1 more than half a second clear of his closest pursuer. Only reigning world champion Jorge Lorenzo could get close, with Marquez's advantage standing at 0.255s at the end of the 45-minute session.

Less than a week after the Grand Prix of Argentina, riders were testing two new rear compounds that Michelin shipped in from France on Thursday evening. Although the rubber appeared to have some wear on the right side, Michelin tyre man Peiro Taramasso explained how riders had provided positive early feedback.

Times were fairly spaced out, with a second covering the top five riders. A quartet of Ducatis in the form of Andrea Iannone (+0.617s), Hector Barbera (+0.729s), Andrea Dovizioso (+1.079s) and Scott Redding (+1.271s) followed Lorenzo in second, suggesting the Desmosedici-boosted punch onto the back straight was of great benefit.

Meanwhile Valentino Rossi tried the 'new' Yamaha, not seen since winter testing, on his way to seventh place this morning (+1.299s).

There was a fast spill for Jack Miller, the Australian high-siding at some speed through turn 18. Fast in Argentina, Miller was taken to the medical centre, where it was revealed via scan that he has suffered no substantial damage to the leg he broke during the winter.

1. Marc Marquez
2. Jorge Lorenzo
3. Andrea Iannone
4. Hector Barbera
5. Andrea Dovizioso
6. Scott Redding
7. Valentino Rossi
8. Yonny Hernandez
9. Maverick Vi?ales
10.Dani Pedrosa
11.Aleix Espargaro
12.Pol Espargaro
13.Cal Crutchlow
14.Stefan Bradl
15.Tito Rabat
16.Bradley Smith
17. Eugene Laverty
18.Alvaro Bautista
19.Loris Baz
20.Michele Pirro
21. Jack Miller