A marathon course runs 26.2 miles along an open road. Much tougher to secure than an arena with doors and walls.
Yet across the United States and around the world, from West Bend, Wis., and London this weekend, to Nashville, Tenn., next week and Copenhagen next month, organizers of road races are trying to figure out how to improve security after the Boston Marathon bombings.
Paris Marathon director Joel Laine, whose race was held earlier this month, put it this way Tuesday: "There will be a 'before' and 'after-Boston'" from now on.
Still, with thousands - and sometimes hundreds of thousands - of spectators and entrants scattered along the route, there are limits to how much can be done to protect everyone, marathon officials, experts and runners cautioned. They spoke in dozens of interviews with the AP a day after a pair of bombs went off seconds apart near the finish line in Boston, killing three people, including an 8-year-old boy, and injuring more than 170 others.
"This is what everyone thought might happen" following the 9/11 attacks, said Tom Derderian, coach of the Greater Boston Track Club and author of a book about the Boston Marathon.
"This is a 26-mile foot race. With both sides of the street, that's 52 miles to secure," Derderian said. "How? You can't have everyone go through metal detectors."
Marathons aren't just for elite athletes: They have steadily increased in popularity among recreational runners and those raising money for charity. In the aftermath of Monday's attack, which President Obama called an act of terrorism, some marathons heard from runners wondering whether races would be canceled. Yet nearly 40 events, all over the globe, are set for this weekend alone - including Hamburg, Germany; Belgrade, Serbia; Salt Lake City; Lansing, Mich.; and the Jersey Shore. There was no indication that any would be called off.
Scott Dickey, CEO of Competitor Group Inc., which manages more than 35 marathons and half marathons around the world, said he's "been in deep conversations already" with the FBI and government agencies "to talk about enhancing security protocol and personnel" for the St. Jude Country Music Marathon and Half Marathon in Nashville on April 27.
"What we're going to do with yesterday's event is we're going to learn from it, and we're going to increase, certainly in the near term and probably permanently, the number of security personnel, both private and public, at our start lines and finish lines," Dickey said. "We're going to review the protocol and procedures that are in place and enhance and improve them so that we're in a better position to prevent these types of tragedies from taking place."
Susie Smisek, director of September's Omaha Marathon, said Boston does, indeed, change the way race organizers go about their job now.
"We'll make sure we have more security available, that people are more aware and are aware of their surroundings," Smisek said. "Will it make us more vigilant in what we do? You bet."
Rick Nealis, director of the Marine Corps Marathon since 1993, pointed to factors that make these races unique among sports - and, therefore, more of a challenge to secure.
"In stadiums, turnstiles, hardened buildings, you can control who's going in, and do all the safety checks and have a secure event," added Nealis, whose race course cuts through Virginia and the nation's capital, ending near the Iwo Jima Memorial. "On roads, in an open venue, when you take 26.2 miles of open space, it's the beauty of the sport and at the same time, in this day and age, part of the risk assessment. Unless we decide we're going to run around a track in quarter-mile loops hundreds of times."
Brewer: 'Good plan' for Pat's Run
PHOENIX - Gov. Jan Brewer said Tuesday that enhanced security is being put in place for this weekend's 4.2-mile Pat's Run, in the wake of the bombings in Boston.
Brewer said what happened at the Boston Marathon is on the minds of those who handle public safety and emergency services for the state as they prepare for the Saturday event.
Brewer said she is confident in the security.
"We feel that we have a good plan in place for anything that should happen," she said, adding the incident in Boston has some lessons for Arizona.
"I think it reminds all of us that we certainly have to be aware of our surroundings," she said. "We have to be cautious and know what's going on, and that we take every kind of procedure that we feel is necessary."
Howard Fischer, Capitol Media Services