Upcoming highlight: Prince Edward Island Marathon (Charlottetown, PE)

Upcoming highlight: Steamtown Marathon (Scranton, PA)

Upcoming highlight: Chicago Marathon (Chicago, IL)

Upcoming highlight: Sugarloaf Marathon (Kingfield, ME)

Upcoming highlight: Wineglass Marathon (Corning, NY)

Upcoming highlight: Hawaii Bird Conservation Marathon (Hilo, HI)

Upcoming highlight: Light at the End of the Tunnel Marathon (North Bend, WA)

Upcoming highlight: Huntsville Marathon (Huntsville, UT)

Upcoming highlight: Coast Guard Marathon (Elizabeth City, NC)

Upcoming highlight: Mobile Marathon (Mobile, AL)

Upcoming highlight: Tucson Marathon (Tucson, AZ)

Upcoming highlight: Sundance to Spearfish Marathon (Spearfish, SD)

Upcoming highlight: REVEL Mt. Charleston Marathon (Las Vegas, NV)