This Saturday, May 14, the Karl Chevrolet Hamilton County Speedway in Webster City, Iowa, presents the Double Down Showdown for Seneca Foundry USRA Stock Cars.

Also in action will be the Olsen Family USRA Modifieds, Stein Heating & Cooling USRA B-Mods, Diamond in the Rough USRA Hobby Stocks and A1 Automotive USRA Tuners.

Saturday’s blockbuster show will also be a special “Salute the Troops” program with free grandstand admission for all active and retired military members.

Fans will see double features in the USRA Stock Cars with drivers battling for $500 to win each feature, plus they’ll earn valuable national, regional and track points in the Summit USRA Weekly Racing Series for each.

Pits open at 4 p.m. and grandstands open at 5 with hot laps at 7 and racing to follow this Saturday night at the historic half-mile dirt oval in Webster City, Iowa.

Opening in July 1910, the Karl Chevrolet Hamilton County Speedway is the oldest speedway in the state of Iowa. In 1938, work began on the current location at the Hamilton County Fairgrounds. The semi-banked half-mile dirt track was completed in the spring of 1939, and the first races were held on the track in September of that year.

The Karl Chevrolet Hamilton County Speedway is located off US 20 at exit 140, then 1.2 miles north, then 0.5 mile east on Bank St., then 0.4 mile south on Bluff St. to the Hamilton County Fairgrounds in Webster City, Iowa. The physical address is 1200 Bluff St, Webster City, IA 50595.

For more information, call (515) 832-6000 or check out HamiltonCoSpeedway.com. You can also get social on Facebook, Instagram, Twitter and YouTube.

To learn more about the USRA, check outusraracing.com and follow via social media onFacebook, Instagram, Twitter and YouTube. Click here to get USRA news delivered to your inbox.

HAMILTON COUNTY SPEEDWAY MARKETING PARTNERS: Karl Chevrolet Buick GMC, Kwik Star, A1 Automotive, American Racer, Arends Ag Service, Availa Bank, Burke Plain Plumbing, CAM Motorsports, Christie Door Company, City of Webster City, CPD Racing Shocks, D & B Agro-Systems, DCD Concrete Coatings, Diamond in the Rough, Farm Credit Services of America, Fertilizer Equipment Specialists, Foster Funeral & Cremation, Gerber Auto Care, Gilbert Jewelers, Good Life RV, Humes Distributing, Hy-Vee, Jerry Goebel State Farm Agent, Jones Rock & Dirt, K.C. Nielsen Ltd., Lampert Lumber, Malvern Bank, McDonald's, Murphy Carpentry, MyRacePass, NAPA Auto Parts, Nitroquest Media, The Olsen Family, P & P Electric, PBM-World-Erson, Peoples Credit Union, Pepsi Beverages, POET Biorefining – Jewell, RacerWebsite.com, RacinDirt, Seneca Foundry, Shawn's Hay Grinding, Stein Heating & Cooling, Summit Racing Equipment, Tex Trail Trailer Parts, Tolle Automotive, The Trashman, Allen Uhrhammer Farms, CF Financial Bank, Webster City Custom Meats, Webster City True Value, Windsor Manor Assisted Living.