For bicycling events in Maryland and its immediate region, contact the following clubs and organizations.
Annapolis Bicycle Club Antietam Velo Club Artemis Babes on Bikes Baltimore Bicycling Club Bikes and Brunch Chesapeake Wheelmen Cumberland Valley Cycling Club DC Velo Delaware Valley Bicycle Club Frederick Pedalers Harford Velo Cycling Club Hopkins Cycling Lancaster Bicycle Club Lehigh Valley Velo Mid–Atlantic Off–Road Enthusiasts National Capital Velo Club Oxon Hill Bicycle & Trail Club Pax Velo Racing Club Potomac Pedalers Touring Club (PPTC) Reston Bicycle Club Richmond Area Bicycling Association (RABA) Shore Velocity Squadra Coppi Washington Area Bicyclists in Tandem Society Washington’s Happily Independent Recumbent Lovers (WHIRL) Western Maryland Wheelmen Club White Clay Bicycle Club
Adventure Cycling Association Baltimore Metropolitan Council College Park Area Bicycle Coalition East Coast Greenway International Mountain Bicycling Association League of American Bicyclists Mid Atlantic Off Road Enthusiasts Montgomery County Action Group Maryland Association of Mountain Bike Operators (MAMBO) National Center for Bicycling and Walking One Less Car The Bicycle and Trails Advisory Group Washington Area Bicycle Association (WABA)