Ranking of World's Largest Marathons in 2010

No. 1 - New York
No. 2 - London
No. 3 - Chicago
No. 4 - Berlin
No. 5 - Paris


No. 6 - Tokyo
No. 7 - Boston
No. 8 - La Angeles
No. 9 - Marine Corps
No. 10 - Honolulu


As compiled by Running USA for the year 2010 based on the number of finishers:

1 - ING New York City Marathon - 44,977 (largest all time)
2 - Virgin London Marathon - 36,632
3 - BOA Chicago Marathon - 36,088
4 - real,-Berlin Marathon - 34,002
5 - Marathon de Paris - 30,976
6 - Tokyo Marathon - 30,170
7 - BAA Boston Marathon - 22,672
8 - Honda LA Marathon - 22,580
9 - Marine Corps Marathon, USA - 21,944
10 - Honolulu Marathon - 20,180