Selinsgrove Speedway presents the 33rd annual Jack Gunn Memorial URC 358/360 Sprint Car Challenge Saturday. The event pits the track regular 358 sprint cars against the 360 cubic-inch URC Series sprinters in a 30-lap feature event, worth $3,500 to the winner.

The race honors the memory of the late Hall-of-Fame race track promoter Jack Gunn, who operated Selinsgrove, Williams Grove, Penn National and Hagerstown Speedways during his career and brought mid-state dirt track racing to national prominence in the 1970s. Gunn was inducted posthumously into the National Sprint Car Hall of Fame, located in Knoxville, Iowa in 1990.

The Gunn Memorial has been presented in various formats over the years at Selinsgrove, becoming a challenge race between the 358 and 360 teams in 2006. Past winners of the current format include Blane Heimbach in 2012, Dave Calaman, Shane Stewart and Trevor Lewis. Saturday's program will include time trials, qualifying heats and consolation events leading up to the 30-lap feature program. Also included on Saturday night's schedule will be the late models and pro stocks.

The Gunn Memorial is the first of two visits to the area this season by the Rislone United Racing Company Sprint Car Series. The tour opened their 2013 season at Big Diamond Speedway a few weeks back. Robbie Stillwagon, the 2012 URC Champion, took the win and leads the points standings as the tour heads to Bedford Speedway tonight, before Saturday's Selinsgrove event.

The oldest traveling sprint car series in the USA, the URC is in the midst of its 66th season of racing. Bryn Gohn, Billy Pauch Jr., Davie Franek, Kramer Williamson, Joey Biasi, Dave Ely, JJ Grasso and many others continue to battle for bragging rights during the series' events.

The sprint cars and late models at Selinsgrove have been ultra-competitive this season, as neither division has seen a repeat winner in five feature events to date. Mark Smith, Tony Stewart, Pat Cannon, Jason Shultz and Eric Tomecek are the sprint car winners, while Dylan Yoder, Coleby Frye, Jerry Bard, Dan Stone and Jeff Rine have collected one win each in the late models.

Gates open at 5 and racing begins at 7 p.m.

Big Diamond swings open its gates for a slightly different program tonight. The 358 modifieds share the card with the roadrunners, legends cars and street stocks.

Williams Grove Speedway hosts two nights of racing with the 358 and 410 sprint cars in action tonight, while the Saturday Night Series returns Saturday with the winged super sportsmen, limited late models and street stocks. The World of Outlaws will be making its first eastern swing next week, with stops at Lincoln Speedway on Wednesday and a two-day show at Williams Grove beginning Friday

The 358 and 410 sprint cars share the card with the thundercars Saturday night at Lincoln.

Grandview Speedway hosts the three weekly divisions of 358 modifieds, sportsmen and limited late models.

The NHRA Mello Yello Drag Racing Series returns to Atlanta, following last weekend's washout. Qualifying will be run today with the eliminations slated for Saturday, for the 33rd Annual Summit Racing Equipment Southern Nationals. The Atlanta Dragway hosts the 7th of 24 events on the 2013 schedule, and ESPN2 will provide one hour of qualifying action Saturday morning at 10 a.m. and three hours of eliminations at 8 p.m. Saturday night. Steve Torrence (top fuel), Ron Capps (funny car) and Greg Anderson (pro stock) are the 2012 event winners.

Final thoughts for the week, Happy Mother's Day to all moms and especially my mom, the greatest in the world!