WHAT: Ninth annual NGK Spark Plugs NHRA Four-Wide Nationals, the sixth of 24 events in the NHRA Mello Yello Drag Racing Series. Drivers in four categories – Top Fuel, Funny Car, Pro Stock and Pro Stock Motorcycle – earn points leading to 2018 NHRA Mello Yello Drag Racing Series world championships. 

WHERE: zMAX Dragway- Track is located on Hwy 29 off I-85 at exit 49 (Speedway Blvd.) in the Concord, N.C. area.

WHEN:Friday through Sunday, April 27-29

FORMAT: Qualifying sessions and elimination rounds will be conducted using four lanes in all Mello Yello Series classes; Lanes will be identified from left to right facing downtrack as 1-4; Two Christmas trees will be in use, one between each two lanes; The Compulink Autostart system will continue to be utilized and it will not activate until all four vehicles are pre-staged and one vehicle has staged; The ladder structure will feature Race A: qualifiers 1, 8, 9, 16, Race B: qualifiers 4, 5, 12, 13, Race C: qualifiers 2, 7, 10, 15, and Race D: qualifiers 3, 6, 11, 14; Race A and Race B will be on one side of the ladder, while Race C and Race D will be on the other;  Lane choice for eliminations goes to the driver with the quickest E.T., then the second-quickest, and so on; The first two drivers in each elimination round to cross the finish line advance to the second round and final; In the final round, teams will finish in the order they cross the finish line (barring any red-light starts), with winner, runner-up and two semifinalists in that order.

SCHEDULE:FRIDAY, April 27 - LUCAS OIL SERIES qualifyingE3 SPARK PLUGS NHRA PRO MOD DRAG RACING SERIES qualifying at 3:45 p.m. and 6:15   MELLO YELLO SERIES qualifying at 4 and 6:30 p.m.

SATURDAY, April 28 - LUCAS OIL SERIES eliminationsE3 SPARK PLUGS NHRA PRO MOD DRAG RACING SERIES qualifying at 3:15 p.m. and 5:15 p.m.                           MELLO YELLO SERIES qualifying at 2:00 and 4 p.m.

SUNDAY, April 29 - Pre-race ceremonies, 10:30 a.m. MELLO YELLO SERIES eliminations begin at noonE3 SPARK PLUGS NHRA PRO MOD DRAG RACING SERIES eliminations at 12: 55 p.m.

TELEVISION:    Friday, April 27, FS1 will televise one hour of qualifying highlights at 8 p.m. (ET).Saturday, April 28, FS1 will televise an hour and a half of LIVE qualifying at 2:30 p.m. (ET).Sunday, April 29, FS1 will televise three hours of elimination highlights at 6 p.m. (ET).