Are you ready to run 26.2? Here are the 10 marathons with the biggest number of finishers, according to Running USA.
Put your training to the test with a marathon. 
ING New York City Marathon
New York, NY; 43,660 finishers
It's no surprise the Big Apple boasts the nation's biggest marathon. If you're lucky enough to get an entry, just remember that if you can make it here, you can make it anywhere. Read More ?
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Bank of America Chicago Marathon
Chicago, IL; 33,701 finishers
Want to run with some of today's elite runners? This race attracts some of the finest athletes to accomplish some of their dreams at this World Marathon Majors event.
Boston Marathon
Boston, MA; 22,843 finishers
Arguably the most famous modern marathon, Boston is also one of the biggest. Qualifying for this event is an accomplishment on its own and offers a race experience you won't forget.
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Marine Corps Marathon
Washington, DC; 21,405 finishers
Dubbed "The People's Marathon," this race is popular for first-timers and veterans alike. This year it sold out in record time. Find out why runners flock to run the nation's capital at the Marine Corps Marathon.
Honolulu Marathon
Honolulu, HI; 20,323 finishers
Running in paradise doesn't sound like a bad idea. The Honolulu Marathon is one of the classic destination races in the U.S. as runners come for the race and stay for the week.
Walt Disney World Marathon
Orlando, FL; 14,948 finsihers
When the "Happiest Place on Earth" hosts a marathon, runner's highs abound. Feel like a kid again as you run through the castle and alongside some of Disney's most famous characters.
Los Angeles Marathon
Los Angeles, CA; 14,125 finishers
With a famous landmarks at every mile, the newly revamped LA Marathon course is full of glitz, glamour and maybe a paparazzo or two. See the City of Angels like never before at the 2011 event.
Rock 'n' Roll San Diego Marathon
San Diego, CA; 13,391 finishers
San Diego is where rock 'n' roll marathons were born. Come check out the original Rock 'n' Roll marathon event and enjoy the sand, surf and sun while you're there. Read More ?
Medtronic Twin Cities Marathon
Minneapolis, MN; 8,474 finishers
Dubbed the "Most Beautiful Urban Marathon in America," the Twin Cities marathon is full of crowd support and exceptional scenery, including a finish at the state capitol.
Portland Marathon
Portland, OR; 8,166 finishers
Rated for many years as one of the top events in the U.S., the Portland Marathon continues to draw the crowds each year and rounds out the top 10 biggest marathons in the U.S.
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