MILLINGTON, Tenn. --
Schumacher drove his U.S. Army dragster past Countdown competitors Rod Fuller, Doug Kalitta, Hillary Will and Doug Herbert en route to his 13th win of the season and second since the playoffs began. Schumacher's final-round pass of 3.880 seconds at 309.91 mph was strong enough to get past Herbert and build his points lead to 166 on second-place Cory McClenathan.
"I walked into this race 97 (points ahead) and I said I wanted to leave 150 ahead," Schumacher said. "I wanted to leave here knowing that with each race, with three left, they're going to have to pull 50 points on me just to catch up."
McClenathan, Schumacher's Don Schumacher Racing teammate, moved past David Powers Motorsports driver Antron Brown into the second-place spot after Brown lost to Countdown driver Larry Dixon in the first round. Herbert's runner-up finish also moved him up one spot from eighth to seventh in the point standings.
Wilkerson drove his Levi Ray & Shoup Chevy Impala SS to a 4.166 run at 298.47.
"We were lucky enough to get by the three Force cars and that was a tremendous opportunity for us to build on our points," Wilkerson said. "When Tony and Cruz (Pedregon) went down and Robert (Hight), we had to beat him, he's right behind me in the points so it was a pretty spectacular weekend for the whole team."
Ashley Force's runner-up finish moved her up in the point standings from sixth to fifth, while JFR teammate and father John Force jumped from eighth to seventh in the point standings.
"It seems like ever since this Countdown started, crazy things are going on in Pro Stock," Edwards said. "You've got a lot of people that are better than our team but they're having a lot of problems like everybody else. Every race we've done a little bit better. We've got three races to go and if I can pick up another win that would be awesome for our team."
Points leader Jeg Coughlin stayed in the top spot following a second-round loss to Allen Johnson after his Jegs.com Chevy Cobalt broke on the line and nudged his precarious lead over second place Kurt Johnson to 32 points.
"I'll tell you what, Steve Tartaglia, all the guys over there work so hard," Treble said. "Man, it's just a privilege to be part of it. And (DSR teammate) Chip Ellis, what an awesome rider he is. We're trying to work together. I'm not as good a rider as he is. I'm probably a better racer on Sunday and if we can combine our efforts I think we can be some pretty tough guys out here."
Runner-up finisher Eddie Krawiec kept his second-place spot in the point standings and moved to within 42 points of leader Matt Smith, who lost in the semifinals.
Sunday's final results from the 21st annual O'Reilly Mid-South Nationals presented by Pennzoil at Memphis Motorsports Park. The race is the 21st of 24 in the NHRA POWERade Drag Racing Series:
Top Fuel -- Tony Schumacher, 3.880 seconds, 309.91 mph def. Doug Herbert, 3.979 seconds, 295.85 mph.
Funny Car -- Tim Wilkerson, Chevy Impala, 4.166, 298.47 def. Ashley Force, Ford Mustang, 4.183, 294.18.
Pro Stock -- Mike Edwards, Pontiac GXP, 6.702, 207.27 def. Jason Line, GXP, 16.481, 48.20.
Pro Stock Motorcycle -- Craig Treble, Suzuki, 6.985, 188.57 def. Eddie Krawiec, Harley-Davidson, broke.
Competition Eliminator -- Arnie Martel, Chevy Roadster, 7.897, 147.02 def. Kevin Self, Bantam Roadster, 8.239, 128.32.
Super Stock -- Edmond Richardson, Chevy Camaro, 10.880, 96.26 def. Lee Sharp, Chevy Cavalier, foul.
Stock Eliminator -- Adam Davis, Chevy Camaro, 11.095, 109.02 def. Jimmy Hildago Jr., Pontiac Firebird, 10.643, 118.23.
Super Gas -- Carl Shane, Chevy S-10, 9.938, 149.08 def. Jeremy Jensen, Chevy Corvette, 9.958, 142.00.