Boston Marathon 2017: Schedule, how to watch on Patriots Day

April 17 marks the 121st running of the Boston Marathon, 26.2 miles from Hopkinton to downtown Boston on Patriots Day.

The world's best distance runners descend on Boston on April 17, Patriots Day, for the 2017 Boston Marathon. This year's event marks the121st running of the 26.2-mile race from Hopkinton, Mass., to downtown Boston.

Almost 27,500runners took part in last year's marathon. Elitemen's runnerscan be expected to cover the distance in less than 2 hours, 15 minutes and top women's runners should finish in around2 1/2 hours.

Here's everything you need to know about this year's event:

When is the 2017 Boston Marathon?

The 2017 Boston Marathon is Monday, April 17.

What time does the 2017 Boston Marathon start?

Here's is how the racers will go off on Monday, April 17, in Hopklinton(all times Eastern) for the 2017 Boston Marathon:

8:50 a.m.:Mobility Impaired Start of the Boston Marathon

9:17: Men's Push-Rim Wheelchair Start of the Boston Marathon

9:19: Women's Push-Rim Wheelchair Start of the Boston Marathon

9:22: Handcycle Start of the Boston Marathon

9:32:Elite Women’s Start of the Boston Marathon

10: Elite Men's and Wave One Start of the Boston Marathon

10:25:Wave Two Start of the Boston Marathon

10:50:Wave Three Start of the Boston Marathon

11:15:Wave Four Start of the Boston Marathon

How can I watch on TV orlivestream the 2017 Boston Marathon?

National coverage of the race on Marathon Monday will be on NBC Sports Network beginning at 8:30 a.m. ET, also available on the NBC Sports appfor mobile devices. The Boston Athletic Association will livestream the race at watchlive.baa.org. NBCSN will replay the race at 8 p.m. ET.

Who do the Red Sox play on Patriots Day as part of 2017 Boston Marathon Monday?

The Red Sox host the Tampa Bay Rays in the traditional early start: 11:05 a.m. ET.

What is the weather forecast for 2017 Boston Marathon Monday?

The early forecast, via weather.com, calls for partly cloudy skies, breezesup to 17 mphand a high temperature in the upper 50swith a 20 percent chance of rain.

Who won the 2016 Boston Marathon?

Lemi Berhanu Hayle ran away from defending champion Lelisa Desisa to win the men's elite title in2:12:45. In the women's elite race,Atsede Baysa recorded one of the greatest come-from-behind victories in the history of women’s racing, rallying from 37 seconds behind the leaders with about 3.5 miles to goto win in 2:29:19.

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