Combined, the celebrations have drawn millions of spectators and have cost millions of dollars to host.
The parade routes over the years have measured a total of about 35 miles — that’s the width of Delaware at its widest point, or approximately from downtown Boston to Shrewsbury.
Most rallies have traveled about 2 miles each. But a couple — the ones celebrating the 2004 and 2013 Red Sox titles — were considerably longer (more than 7 miles) because they included laps in the Charles River.
Typically, about two dozen duck boats have been used each year to carry our local sports heroes around town, a spokesman for Boston Duck Tours said.
In some cases, officials have declined to estimate the crowd size, but when estimates have been provided, they’ve often counted more than 1 million onlookers.
For the 2004 Red Sox parade, officials estimated 3.2 million people turned out, which prompted criticism that the estimate was inflated.
The expense of putting on the rallies has also varied, but they’ve generally cost at least several hundred thousand dollars apiece, much of which goes toward paying overtime for city employees, including police and emergency medical personnel.
In at least some years, portions of the tab were picked up by corporate sponsors.Matt Rocheleau can be reached at firstname.lastname@example.org. Follow him on Twitter @mrochele.