the fastest 1/4 mile time recorded in professional drag racing was achieved by Tony Schumacher, an American drag racer, on November 10, 2006. He set a time of 4.428 seconds at 336.15 mph (540.83 km/h) in a Top Fuel dragster at the Pomona Raceway in California, USA.
Please note that records in motorsports can be broken over time, so there may have been faster times achieved since then. It's always a good idea to consult the latest sources or official motorsports organizations for the most up-to-date information on records.