Securing 26 miles of a race course is difficult. But already, the powers that be are thinking what can be done to make the event safer?
"Certainly, once we get more information from Boston we will meet with the city and state to see if new measures need to be taken to beef up potential areas of concern." said Honolulu Marathon President Jim Barahal.
"I think at a later date it’s something we should talk about so we can inform the public about what happens during outdoor events and what is that we do," said Honolulu Mayor Kirk Caldwell.
Security issues are nothing new to the Honolulu Marathon organizers.
Three months after the terrorist attacks of 9/11, they put on a race with heightened security including a no-fly zone.
Barahol points out, unlike Boston, where the finish line is at a busy commercial street where tens of thousands gather, our finish line is at Kapiolani Park with smaller crowds and spectators stretched out along the race course.
"The starting line is where everyone is gathered together, so maybe that’s something we will look at," Barahol said.
This morning was nerve-wracking for Ashley Clanton, who comes from a family of marathoners.
Her father was running the Boston Marathon, and was expected to finish around when the bomb went off.
She was relieved to hear he was safe, but then worried about her next marathon.
"I have the New York Marathon in November and I am scared. I won’t stop running, because it's something I have trained to do and wanted to do, but it makes you a lot more cautious," said Clanton.
Another runner with six marathons under her belt said she hopes the general public isn't scared off by what happened in Boston.
She issued a heartfelt appeal for support for the premier Honolulu event which she plans to run this year.
"Keep coming out. You are so needed, and you are so wanted, and you make a difference to the runners going by. You may not know it but you do," said Nancy Miller.