About 36,000 laced up their sneakers and hit the ground running at the 2014 Boston Marathon Monday, one year after the race was hit with a deadly finish-line bombing attack.
Three people were killed and dozens more were injured.
Monday's field was the second-largest field of runners in the marathon's history.
And many local runners are among those with the finish line in their sights.
It was a perfect day to run in Boston, according to WFMZ's Bo Koltnow, who was in Boston to cover the race.
Thousands of people lined up on the streets waiting to cheer on the finishers.
Earlier Monday morning, crews added the finishing touches to the finish line. Just a few feet away is a memorial honoring those who died in last year's bombings.
Security was extra tight all morning and will continue throughout the day.
Police are seemingly on every corner and bomb-sniffing dogs are on constant patrol. Backpacks are being checked and people are being subjected to security checks as they get closer to the course, but if you ask runners, this year's race is about emotion.
Bart Yasso, of Runner's World Magazine, called this race the most significant ever in American running.