Runners are part of a tight knit community who have been watching the events in Boston unfold.
At the store called "A Running Start" in West Reading, they were watching the Boston Marathon all day to cheer on their friends, and then the explosions happened.
There is a way to see online when someone finishes the race. All of their runners passed the finish line before the explosions, but that didn't mean they were all okay.
"We go crazy over the Boston Marathon," said Dee Koutsourais, the assistant store manager
To run in Boston is a huge achievement for any runner. So, they were cheering on several runners from West Reading.
"You're constantly looking, and the customers are coming in and they get excited about it," said Koutsourais.
But that all changed around 3 p.m. Monday.
"And then we saw that the people that were being rushed were like bleeding and injured in wheelchairs," said Koutsourais. "We were a little confused, at first. The newscaster began to tell about the explosions, the two explosions, and then we figured out what was going on."
Then they were worried, she said.
"Of course panic was the first thing that kind of hit us. We watched for another good five minutes. All of a sudden, we got on our phones texting and emailing people and just trying to figure out who was okay," said Koutsourais.
They may have crossed the finish line, but not left it.
"We were kind of hoping that they weren't still around. They could have still been around. That's why we wanted to get in contact with them as soon as we could," said Koutsourais.
They heard from some through social media and texting, but not everyone by 4 p.m.
"We're just trying to think positively about it and not worry until we need to," said Koutsourais.
But they can't help but think of their fellow runners.
"When you get to the end of the Boston Marathon, the first thing you should be thinking of this amazing feeling that you are hitting the finish line not fear or terror or anything like that," said Koutsourais.
Koutsourais later said the runners they were tracking online were all safe and well. There are other people from our area she has heard are also safe. She said she was able to get her information through Facebook because phones and texting didn't seem to be working.