The largest motorsports facility in Maryland features thrilling IHRA Championship Drag Racing. MDIR hosts over 100 events annually from March through November and seats 11,000 fans. See the most exciting machines in drag racing, Pro Stocks, Pro Mods, Funny Cars, Jet Cars, and more. Plus, MDIR hosts the best sportsman races and programs in the country. Treat yourself to an awesome race experience that is bound to be a blast for the entire family.