When: Opened Friday with Day 1 of qualifying at the Winternationals in Pomona, Calif. Qualifying continues today and eliminations are Sunday.
Events: Top Fuel, Funny Car and pro Stock race 24 times, ending with the NHRA Finals, also in Pomona, on Nov. 13. Pro Stock Motorcycle has 16 events starting with the Gatornationals, March 17-20 in Gainesville.
Format: The final six events are in the "Countdown to 1" playoff, similar to NASCAR's Chase for the Championship.
What's new: Pro Stock cars no longer have hood scoops (large pieces of bodywork that stuck out of the hood), so now the cars have smooth hoods. The NHRA got rid of its "1 percent" rule for national records, in which competitors had to have another run within 1 percent for a record run to stand.
Qualifying: Tony Schumacher led Top Fuel qualifying on Friday. The eight-time season champion had a 3.722-second run at 323.66 mph in his Don Schumacher Racing dragster. Robert Hight topped the Funny Car field, and Bo Butner was the fastest in the new-look Pro Stock category.