John Force raced to his second straight Funny Car victory to open a 65-point lead with two events left in the NHRA's Countdown to the Championship.
The 64-year-old Force, a record 15-time season champion, won for the third time this season and the record 137th of his unprecedented career. He beat rookie Chad Head in the final round with a 4.106-second run at 313.37 mph in a Ford Mustang.
Shawn Langdon won in Top Fuel to also extend his points lead, beating defending series champion Antron Brown in the final with a 3.779 at 323.81. Langdon, 83 points ahead of Doug Kalitta, has a series-high six victories this year.
Jeg Coughlin won in Pro Stock to take the season lead, and points leader Matt Smith topped the Pro Stock Motorcycle field.