| Boston Marathon | Boston | MA | Apr | 15528 | 53.5% |
| Cheap Marathon | Derry | NH | Apr | 200 | 32.6% |
| California International Marathon | Sacramento | CA | Dec | 2471 | 30.2% |
| Ventura Marathon | Ventura | CA | Feb | 350 | 26.7% |
| Cascade Express Marathon | North Bend | WA | Sep | 135 | 24% |
| Glass City Marathon | Toledo | OH | Apr | 287 | 23.5% |
| Baystate Marathon | Lowell | MA | Oct | 260 | 22.9% |
| Jim Thorpe Marathon | Jim Thorpe | PA | Apr | 176 | 22.7% |
| Bayshore Marathon | Traverse City | MI | May | 346 | 20% |
| Indianapolis Monumental Marathon | Indianapolis | IN | Nov | 1253 | 18.8% |
| Mountains 2 Beach Marathon | Ventura | CA | Apr | 376 | 18.3% |
| Steamtown Marathon | Scranton | PA | Oct | 162 | 18.2% |
| Eugene Marathon | Eugene | OR | Apr | 811 | 17.9% |
| Tucson Marathon | Tucson | AZ | Dec | 195 | 17.3% |
| Jersey City Marathon | Jersey City | NJ | Apr | 522 | 16.8% |
| Mesa Marathon | Mesa | AZ | Feb | 490 | 16.3% |
| Santa Rosa Marathon | Santa Rosa | CA | Aug | 218 | 16.2% |
| Chicago Marathon | Chicago | IL | Oct | 8761 | 16.1% |
| Mohawk Hudson River Marathon | Albany | NY | Oct | 89 | 14.8% |
| Houston Marathon | Houston | TX | Jan | 1330 | 14.4% |
| Sugarloaf Marathon | Kingfield | ME | May | 71 | 14.3% |
| Harrisburg Marathon | Harrisburg | PA | Nov | 89 | 14.1% |
| Vermont City Marathon | Burlington | VT | May | 205 | 13.9% |
| Illinois Marathon | Champaign-Urbana | IL | Apr | 147 | 13.4% |
| Utah Valley Marathon | Provo | UT | Jun | 199 | 13.1% |
| Tunnel Light Marathon | North Bend | WA | Sep | 60 | 12.9% |
| Wineglass Marathon | Corning | NY | Oct | 249 | 12.6% |
| Napa Valley Marathon | Napa | CA | Mar | 242 | 12.5% |
| Wilmington Marathon | Wilmington | NC | Feb | 168 | 11.3% |
| New York City Marathon | New York | NY | Nov | 6161 | 10.4% |
| Las Vegas Marathon | Las Vegas | NV | Jan | 177 | 10.4% |
| Grandma's Marathon | Duluth | MN | Jun | 961 | 10% |
| Buffalo Marathon | Buffalo | NY | May | 147 | 9.9% |
| Hartford Marathon | Hartford | CT | Oct | 180 | 9.4% |
| Windermere Marathon | Spokane | WA | May | 20 | 9% |
| Louisiana Marathon | Baton Rouge | LA | Jan | 133 | 9% |
| Des Moines Marathon | Des Moines | IA | Oct | 168 | 8.9% |
| Philadelphia Marathon | Philadelphia | PA | Nov | 1092 | 8.7% |
| Lincoln Marathon | Lincoln | NE | May | 96 | 8.7% |
| St. George Marathon | St. George | UT | Oct | 375 | 8.6% |
| Richmond Marathon | Richmond | VA | Nov | 416 | 8.4% |
| Missoula Marathon | Missoula | MT | Jun | 101 | 8.1% |
| Grand Rapids Marathon | Grand Rapids | MI | Oct | 89 | 7.7% |
| Kiawah Island Marathon | Kiawah Island | SC | Dec | 110 | 7.3% |
| Columbus Marathon | Columbus | OH | Oct | 278 | 6.7% |
| Maine Marathon | Portland | ME | Oct | 77 | 6.6% |
| Akron Marathon | Akron | OH | Sep | 52 | 6.4% |
| Phoenix Marathon | Phoenix | AZ | Dec | 149 | 6.3% |
| Myrtle Beach Marathon | Myrtle Beach | SC | Mar | 102 | 6.1% |
| Atlantic City Marathon | Atlantic City | NJ | Oct | 63 | 6.1% |
| Fargo Marathon | Fargo | ND | May | 73 | 5.6% |
| Seattle Marathon | Seattle | WA | Nov | 136 | 5.5% |
| Kentucky Derby Festival Marathon | Louisville | KY | Apr | 77 | 5.1% |
| Anchorage Mayor's Marathon | Anchorage | AK | Jun | 41 | 5.1% |
| Shamrock Marathon | Virginia Beach | VA | Mar | 122 | 5% |
| St. Jude Memphis Marathon | Memphis | TN | Dec | 97 | 4.9% |
| Long Beach Marathon | Long Beach | CA | Oct | 226 | 4.8% |
| Dallas Marathon | Dallas | TX | Dec | 185 | 4.8% |
| Go! St. Louis Marathon | St. Louis | MO | Apr | 68 | 4.8% |
| Flying Pig Marathon | Cincinnati | OH | May | 243 | 4.6% |
| Pittsburgh Marathon | Pittsburgh | PA | May | 224 | 4.5% |
| Big Sur International Marathon | Carmel | CA | Apr | 145 | 4.5% |
| Portland Marathon | Portland | OR | Oct | 136 | 4.5% |
| Baltimore Marathon | Baltimore | MD | Oct | 89 | 4.5% |
| Twin Cities Marathon | St. Paul | MN | Oct | 298 | 4.3% |
| Cleveland Marathon | Cleveland | OH | May | 86 | 4.3% |
| Albuquerque Marathon | Albuquerque | NM | Oct | 21 | 4.1% |
| Omaha Marathon | Omaha | NE | Sep | 14 | 3.9% |
| Revel Big Cottonwood | Salt Lake City | UT | Sep | 44 | 3.8% |
| Marine Corps Marathon | Arlington | VA | Oct | 1021 | 3.4% |
| Detroit Free Press Marathon | Detroit | MI | Oct | 121 | 3.4% |
| Fox Valley Marathon | St. Charles | IL | Sep | 16 | 3.2% |
| Milwaukee Lakefront Marathon | Milwaukee | WI | Oct | 50 | 3.1% |
| Little Rock Marathon | Little Rock | AR | Mar | 36 | 3% |
| Boise Marathon | Boise | ID | Jun | 6 | 2.9% |
| Oklahoma City Memorial Marathon | Oklahoma City | OK | Apr | 70 | 2.8% |
| Boulderthon | Boulder | CO | Sep | 50 | 2.5% |
| Cowtown Marathon | Fort Worth | TX | Feb | 54 | 2.5% |
| Denver Colfax Marathon | Denver | CO | May | 73 | 2.5% |
| Kansas City Marathon | Kansas City | MO | Oct | 37 | 2.4% |
| San Francisco Marathon | San Francisco | CA | Jul | 159 | 2.2% |
| Austin Marathon | Austin | TX | Feb | 159 | 2.2% |
| Rock 'n' Roll San Diego Marathon | San Diego | CA | Jun | 141 | 2.1% |
| Atlanta Marathon | Atlanta | GA | Mar | 57 | 1.9% |
| San Antonio Marathon | San Antonio | TX | Dec | 63 | 1.9% |
| Miami Marathon | Miami | FL | Jan | 56 | 1.7% |
| Los Angeles Marathon | Los Angeles | CA | Mar | 305 | 1.4% |
| Nashville Marathon | Nashville | TN | Apr | 40 | 1.3% |
| Honolulu Marathon | Honolulu | HI | Dec | 184 | 0.8% |
| Disney World Marathon | Orlando | FL | Jan | 104 | 0.8% |
| Coeur d'Alene Marathon | Coeur d'Alene | ID | May | — | — |
| St. Petersburg Marathon | St. Petersburg | FL | Feb | — | — |
| Gasparilla Distance Classic Marathon | Tampa | FL | Feb | — | — |
| Mercedes-Benz Marathon | Birmingham | AL | Feb | — | — |
| Mardi Gras Marathon | New Orleans | LA | | — | — |
| Green Bay Marathon | Green Bay | WI | May | — | — |
| Erie Marathon | Erie | PA | Sep | — | — |
| Lehigh Valley Marathon | Allentown | PA | Sep | — | — |
| New Jersey Marathon | Long Branch | NJ | Apr | — | — |
| Providence Marathon | Providence | RI | May | — | — |