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Race results from the 2018 Americas Moto2 Grand Prix, round 3 of 19.

Jorge Martin broke away and made it count to claim victory in the Moto3 Grand Prix of the Americas in Austin, Texas.

Race results from the 2018 Americas Moto3 Grand Prix, round 3 of 19.

Marquez back on top of the timesheets during warm-up for the Austin MotoGP. Vinales - who has inherited pole position after Marquez's grid penalty - is a close second, with title leader Crutchlow back on form in third.

Warm-up results from the 2018 Americas Moto3 Grand Prix, round 3 of 19.

Warm-up results from the 2018 Americas Moto3 Grand Prix, round 3 of 19.

Marc Marquez has lost his pole position start for the Austin MotoGP after being handed a three-place grid penalty. The Repsol Honda star was punished for riding slowly on the racing line during qualifying and will now drop to fourth on the grid.

UPDATE: Marquez has been stripped of his pole position start and will line-up fourth on the grid .

Alex Marquez had the pace to reclaim pole ahead of the Moto2 Grand Prix of the Americas in Texas

Qualifying results from the 2018 Americas Moto2 Grand Prix, round 3 of 19.

Qualifying results from the 2018 Americas Moto3 Grand Prix, round 3 of 19.

Free Practice (3) results from the Americas Moto2 Grand Prix, round 3 of 19.

Free Practice (3) results from the Americas Moto3 Grand Prix, round 3 of 19.

Live updates from Friday MotoGP practice at Austin, Texas! CLICK HERE to view on Crash.net …

Marquez fastest from Rossi during a dusty opening practice for the Austin MotoGP. Pedrosa is attempting to ride despite surgery for a wrist fracture sustained last time in Argentina. Zarco suffered an early engine problem and was forced to park his number one machine.

Four-time 500cc title runner-up Randy Mamola officially became a MotoGP Legend during an emotional ceremony on Friday at the Grand Prix of the Americas. Mamola is the first Legend not to have won a World Championship.

Free Practice (1) results from the Americas Moto3 Grand Prix, round 3 of 19.

Would Valentino Rossi soften his stance against MotoGP rival Marc Marquez, a week and a half after their clash in Argentina?

The final part of an exclusive interview with triple 500cc world champion 'King' Kenny Roberts, ahead of this weekend's Americas MotoGP round.

Reigning world champion Marc Marquez met the MotoGP media in COTA on Thursday (pictured), where he faced renewed questions about the drama in Argentina and rock-bottom relationship with Valentino Rossi.

Full race results for the Formula 1 United States Grand Prix at the Circuit of the Americas. 1. Lewis Hamilton GBR Mercedes AMG Petronas Motorsport 56 laps, 1hr 33m 50.993s

Provisional starting grid for the 2017 Formula 1 United States Grand Prix at Circuit of the Americas.   Row 1 1. Lewis Hamilton GBR Mercedes-Mercedes 2. Sebastian Vettel GER Ferrari-Ferrari Row 2

Full qualifying three results for the Formula 1 United States Grand Prix at the Circuit of the Americas. Q3 1. Lewis Hamilton GBR Mercedes AMG Petronas Motorsport 1m 33.108s

Full free practice three results for the Formula 1 United States Grand Prix at the Circuit of the Americas. 1. Lewis Hamilton GBR Mercedes AMG Petronas Motorsport 1m 34.478s