The sixth annual Keystone Cup sprint car series got off to a wet start Wednesday night at Grandview Speedway, as thunder rolled in the backdrop and rains soaked the Bechtelsville oval just before the 410 sprinters were to be pushed out for hot laps.

Thursday night's Smokey Snellbaker Classic at Port Royal Speedway was successfully run, while tonight, Williams Grove hosts the 410s along with a complete program of 305 sprint cars. On Saturday, the series heads to Lincoln Speedway and shares the card with the thundercars and PA Legends Series.

The final checkered flag will fall on the central Pennsylvania series at Selinsgrove Speedway on Sunday evening. The Snyder County oval pays homage to four-time track champion, Ray Tilley, with the winged super sportsman making their first appearance of the year at the fast half mile.

Tilley, of Pine Grove, clinched his four career sprint car titles (1965-66 and 1968-69) at Selinsgrove and remains on top of the track's all-time win list with 69 career victories. Tilley passed away on Aug. 19, 2011, from complications of a stroke at the age of 77.

Greg Hodnett is the defending race winner at Selinsgrove, while Fred Rahmer won the 2011 Keystone Cup title, his third in the series history, the others coming in 2007 and '08.

Big Diamond Speedway hosts its first sprint car event of the year tonight. The Rislone United Racing Company joins the three-division show of modifieds, sportsman and roadrunners.

Following a rained out opener at Delaware International Speedway, Bobby Breen took the URC win at Black Rock (N.Y.) Speedway and Blaine Heimbach won at Selinsgrove, leading to tonight's program.

New Jersey's Davey Franek leads the early season points chase, but is closely followed by Ryan Bohlke, Robbie Stillwagon, Josh Weller and Chad Trout. Gates open at 5 p.m. and racing action starts at 8:15.

For those of you who are choosing to stay home tonight rather than watch the action at your local track, the World of Outlaws sprint cars will be in action, live on your television, as the SPEED Channel broadcasts from the Dirt Track at Charlotte.

The Circle K NOS Energy Outlaw Showdown at the 4/10 mile dirt track will be broadcast at 8 p.m., with Ralph Sheheen and Brad Doty calling the action from the booth while Matt Yocum and Bobby Gerould will cover the pits for SPEED.

In area dirt track racing Saturday night, Selinsgrove Speedway hosts its four-division program of 358 sprint cars, late models, pro stocks and roadrunners; Williams Grove returns with its popular Saturday Night Series of winged super sportsman, limited late models and street stocks; Port Royal hosts twin-15 (laps) late model features along with the 305 sprint cars, pro stocks and enduro dashes; Grandview's three-division show of 358 modifieds, limited late models and sportsman are in action at the Berks County oval, while Hagerstown hosts the late model sportsman, hobby stocks and a four-cylinder demo derby.

Plenty of local drag racing action fills the weekend calendar. Both Numidia Dragway and Beaver Springs Dragway have very active four-day schedules planned for the Memorial Day holiday.

Maple Grove Raceway hosts the Northeast Division One Lucas Oil Drag Racing Series, with time trials today and Saturday, and eliminations scheduled for Sunday.