It should be an emotionally charged scene Monday when the Boston Marathon, which has been run every year since 1897, steps off.
The second-largest field in the race's history—36,000 runners—will participate on the first anniversary of a bombing attack near the finish line that killed three and injured 264.
The oldest annual marathon in the world sets out from Hopkinton, just west of Boston's downtown, and curls 26.2 miles to Boylston Street, the scene of the 2013 attack.
Police and security cameras will be out in force and new restrictions, including a ban on backpacks, will mark Monday's event.
A total of 144 Idahoans will be running in this year's Boston Marathon, including 59 runners who call Boise their home. Other 2014 Boston Marathoners will come from Star, Meridian, Idaho Falls, Caldwell, Pocatello, Rigby, Coeur d'Alene, Challis, Hope, Chubbuck, Rupert, Kuna, Eagle, Soda Springs, Moscow, Rexburg, Hayden, Franklin, Twin Falls, Athol, Hauser, Iona and Sun Valley.
Idaho's oldest marathoners will be Robert Jensen and Lowell Hawkes, both 71 years old and both from Pocatello.