Fucarile, who lost his right leg in last year's bombing, walked with a prosthetic and a cane to the mound Monday before the game against the Baltimore Orioles.
The 35-year-old native of Stoneham, Mass., handed his cane to a companion, wound up and threw to former Red Sox outfielder Kevin Millar.
The pitch marked a return to Fenway Park for Fucarile, who married his longtime fiancee Jennifer Regan at Fenway last week. The couple had delayed their wedding while Fucarile recovered from serious injuries.