Watch 2015 Boston Marathon Live Online: Get Marathon Results Online, iPhone, Android Devices

The 2015 Boston Marathon will be live streaming online on April 20 for those who can't attend the 119th running of the world's oldest annual marathon. CBS reports that runners will face a cool, rainy day on Marathon Monday, but it won't stop more than one million spectators from cheering them on as they cross the finish line located in Boston's Copley Square.

Live stream coverage of the Boston Marathon begins at 9:30 a.m. ET. Follow the progress of more than 36,000 official entrants in the 2015 race on, and watch runners cross the finish line near the Boston Public Library on Universal Sports' Finish Line Cam here. The marathon will also be televised nationwide on the Universal Sports Network, and locally in the Boston area on WBZ-TV.

Friends and family members can check for runners' qualifying times and race results on their mobile device on the official Boston Marathon website. Get up to the minute information by checking the Boston Marathon Twitter feed or the Boston Marathon Facebook page.

The AT&T Athlete Alert program will also be available to give updates on your favorite runners when they cross the starting line, reach the 10K, half marathon and 30K marks, and once they make it past the finish line. Messages can be delivered any US mobile phone, a pager, or email address. To use this service, text RUNNER to 31901. You will then receive an SMS text message confirming how to complete registration.

It's been two years since the Boston Marathon bombings that killed three and injured an estimated 264 spectators. According to Mass Live, there will be even more security along route than was in place last year, with additional fencing between the runners and the onlookers, and more police officers on bicycles.

Boston Police Deputy Supt. William Ridge tells WBUR that video surveillance is an important part of the marathon security plan, with extra attention placed on the Boylston Street portion of the route and the finish line.

"We've got a lot of cameras out there. We're going to be watching the portions in Boston, particularly the routes along Boylston Street, the finish line. That's the area where two bombs detonated two years ago. Video footage helped authorities identify the terrorists."
If you plan on being one of the spectators at Monday's Boston Marathon, expect to be screened if you want to enter the finish line area.

[Image: Maddie Meyer/Getty Images]