Ben Spies suffered an early crash on the first day of 2011 MotoGP testing at Sepang - but still sits fifth fastest, and top Yamaha, as of 1pm.
Despite his position on the timesheets, Spies has completed just 12 laps, the least of any rider, although he has been back out since the fall.
The Texan is only 0.312sec behind fastest man Dani Pedrosa (Repsol Honda) and almost two tenths clear of team-mate and world champion Jorge Lorenzo.
No other race riders have crashed so far.
Track action is scheduled to conclude at 6pm, providing the weather remains dry.
UPDATE: As of 2:30pm, Spies is up to second fastest, only 0.026sec behind Pedrosa. Spies has now done 24 laps, which is more than Valentino Rossi, who has only recorded 18 laps and is tenth fastest.