@freeman50 knocked out a tough trail run at Utah Lake.
@spooner401 spotted this while driving in New Jersey.
@sagewin explored Laramie River Greenbelt Park in Wyoming.
@ChrisCrossFit30 rocked a Reebok tribute tee.
The patriotic @chrizr0 is ready for some cardio.
@zachendicott ran with his special someone.
@sdziggy shared a shot of her shirt, shoes, and view at Lake Pend Oreille in Idaho.
MensFitness.com associate editor @hollistempleton joined the New York Flyers running club for a "unity run" in Central Park.
@thebrianoconnor ran the 4-mile City Parks Foundation Run for the Parks in New York City's Central Park.
@devincx did a morning 5-K workout using Nike+.
@alli_pink_11 is all about this color.
@cayteye ran along the Petit Balcon Sud in Chamonix, France.
@DpriceDave celebrated his daughters' first race. They're 4 and 6 years old.
@jcr_08 and co. donned neons for Boston.
@jmcdonald521 had a peaceful trail run, part of his training for the Music City Marathon.
@ThomasNOV covered 7 miles in Philadelphia--with a stroller and a sleeping passenger.
@lparizek finished his first 5-K of the season.
@ricardinhos shot this photo while running mountainside in Caracas.
"Keep on keeping on," says @meetah92.
We're definitely jealous of your view, @MrCrow88.
@mxhntz skipped his rest day to run for Boston.
@No1Lion99 ran Philadelphia's 5K Run for Clean Air with his wife.
@thelastboykraut hit the pavement to show his support, Boston-strong style.
@letchkov77 participated in the 2013 Bankwest Gallipoli Run in Perth, WA.
@ShakaStrong warmed up for a workout with a Boston tribute run.
@timmer4250 observed a moment of silence after 4.15 miles.