Marathons 551-current: Red Dirt Ultra (Provencal LA), We Run This Beach Marathon (Gulf Shores AL), Lake Vian Hilltop Run (Vian OK), Little Rock Marathon (Little Rock AR)

 

Marathons 541-550: Across the Years Marathon (Peoria AZ), State 47 Las Cruces Marathon (Las Cruces NM), Lake Mead Marathon (Boulder City NV), Redding Marathon (Redding CA), Railway Marathon (Fultondale AL), Valentine’s Heartbreaker Marathon (Greensboro NC), Dizzy Dalmatian 101 (Fort Worth TX)

 

Marathons 531-540: Rehoboth Seashore Marathon (Rehoboth Beach DE), Phoenix Marathon (AZ), Tucson 50K (AZ), Texas Double 50K (Dallas TX), Holiday Five 50K (Winter Park FL)

 

Marathons 521-530: Mainly Southwest Series 50K (Durango CO/Bluff UT/Flagstaff AZ/Laughlin NV/Nipton CA), White River Marathon (Cotter AR), Route 66 Marathon (Tulsa OK), Turkey’s Revenge 50K (Bothell WA), Seattle Ghost 50K (WA), Seattle Marathon (WA)

 

Marathons 511-520: Mainly Center of Nation Series 50K (Baker MT), X-RATED Ultra Festival 50K (Plevna MT), Cassoday Marathon (KS), Prairie Fire Marathon (Wichita KS), Kansas City Marathon (MO), Des Moines Marathon (IA), The Endless Mile 102M (Alabaster AL), Ocean City Marathon (MD), We Got Your Six Marathon (White Plains MD), Mainly Southwest Series 50K (Farmington NM)

 

Marathons 501-510: Mainly Northwest Series 50K (Clarkston WA/Lewiston ID), Boulder Marathon (Boulder CO), Mainly Center of Nation Series 50K (Cheyenne WY, Sterling CO, Chadron NE, Belle Fourche SD & Bowman ND)

 

Marathons 491-500: Night Crawler Endurance Challenge (Casper WY), Marquette Marathon (Marquette MI), Minocqua No Frills Marathon (Minocqua WI), Jump Off Joe Marathon (Kennewick WA), Appletree Marathon (Vancouver WA), Wicked Fast Marathon Poconos (Lehighton PA), Yonkers Marathon (Yonkers NY), Mainly Northwest Series (Pendleton OR)

 

Marathons 481-490: Mainly Summer Camp Series 50K (Clearwater/St Cloud/Waite Park MN), Boulder Rez Marathon (CO), Mainly Alaska Series 50K (Douglas/Juneau AK), Tunnel Vision Marathon (North Bend WA), Run with the Horses Marathon (Green River WY)

 

Marathons 471-480: Missoula Marathon (Missoula MT), Mainly Heartland Series 50K (Hicksville OH/Niles MI/Portage IN/Fulton IL/Clinton IA/Sparta WI/St Cloud MN), Mainly Summer Camp Series 50K (Rice & Sauk Rapids MN)

 

Marathons 461-470: Mainly Independence Series 50K (Sussex NJ & Montgomery NY), Mainly New England Series 50K (Simsbury CT, Lincoln RI, Holyoke MA, Springfield VT, Claremont NH, Sanford ME), Zip Code 07662 Marathon (Rochelle Park NJ), XCelsior Marathon (Village Cottage NY)

 

Marathons 451-460: Mainly Prairie Series 50K (Baltic SD, Wahpeton SD & Breckenridge MN), Med City Marathon (Rochester MN), Weld Your Mettle Ultra 32M (Eaton CO), Rocky Mountain 50K (Laramie WY), Great Bangor Marathon (Bangor ME), Mainly Independence Series 50K (Bear DE, Elkton MD, Birdsboro PA)

 

Marathons 441-450: Mainly Riverboat Series 50K (Cape Girardeau MO & Vienna IL), Kentucky Derby Marathon (Louisville KY), Fort Wayne Marathon (Fort Wayne IN), REVEL White Mountains (Conway NH), Mainly Prairie Series 50K (Miami OK, St Joseph MO, Hiawatha KS, South Sioux City NE & Sioux City IA)

 

Marathons 431-440: Two Rivers Marathon (Lackawaxen PA), Charlottesville Marathon (Charlottesville VA), Delaware Marathon (Wilmington DE), London OH Marathon (London OH), Mainly Riverboat Series 50K (Winnsboro LA, Eudora AR, Hollandale MS, Millington TN & Columbus KY)

 

Marathons 421-430: Mainly Gulf Coast Series 50K (Jennings LA/Gulfport MS/Pensacola FL), Mainly Appalachian Series 50K (Eufaula AL/Macon GA/Seneca SC/Etowah NC/Bristol TN/Bluefield WV & VA)

 

Marathons 411-420: Dalmatian Run Fest (Ft Worth TX), Mississippi Blues Marathon (Jackson MS), We Run This Beach Marathon (Gulf Shores AL), Lake Vian Hilltop 50K/Marathon (Vian OK), Chili Pepper Series 50K (Las Cruces NM), Asheville Marathon (Asheville NC), Mainly Gulf Coast Series 50K (Beaumont TX)

 

Marathons 401-410: Holiday Five Series (Winter Park FL), Texas Marathon Kingwood (TX), Frozen Sasquatch Trail 50K (Charleston WV), Museum of Aviation Marathon (Warner Robins GA), Mainly Aloha Series 50K (Kapa’a Kaua’i HI), Groundhog Day Marathon (Walker MI), Sandhills 50K (Columbia SC)

 

Marathons 391-400: Four Corners Quad Keyah Series (UT/CO/NM), Nutcracker Endurance Run (Erwin NC), Naked Nick 50K (Leesport PA), Otter Creek Trail Marathon (Brandenburg KY), Holiday Five Series (Winter Park FL)

 

Marathons 381-390: Long View Marathon (Fort Collins CO), Ocean State Marathon (Narragansett RI), Liberty Park Endurance Run (Salt Lake City UT), Mainly Southwest Series (Farmington NM/Laughlin NV/Nipton CA), White River Marathon (Cotter AR), Route 66 Marathon (Tulsa OK), Half N Half Marathon (Tulsa OK), Four Corners Quad Keyah Series (AZ)

 

Marathons 371-380: Mainly Northwest Series 50K (Clarkston WA/Lewiston ID), Mainly Center of the Nation Series 50K (Sterling CO, Chadron NE, Sundance WY, Belle Fourche SD, Bowman ND & Baker MT), Run Crazy Horse Marathon (Hill City SD)

 

Marathons 361-370: Mainly Summer Camp Series 50K (Sauk Rapids/Clearwater MN), Med Bow Rail Marathon (Lake Owen WY), Lean Horse 30M (Custer SD), Staunton Rocks! Trail Marathon (Pine CO), Front Range Ultra Dayze 36M (Loveland CO), DoLittle Marathon (Waukesha WI), Mainly Northwest Series 50K (Pendleton OR/Clarkston WA)

 

Marathons 351-360: Mainly Independence Series 50K (Montgomery NY), Mainly New England Series 50K (Simsbury CT, Lincoln RI, Holyoke MA, Springfield VT, Claremont NH & Sanford ME), Great Bangor Marathon (ME), Mad Marathon (Waitsfield VT), Mainly Summer Camp Series 50K (St Cloud MN)

 

Marathons 341-350: Mainly Prairie Series 50K (Baltic SD, Wahpeton ND, Breckenridge MN), Denver Colfax Marathon (CO), Texas Triple (Dallas TX), Mainly Independence Series 50K (Bear DE, Elkton MD, Sussex NJ)

 

Marathons 331-340: Mainly Riverboat Series 50K (Cape Girardeau MO & Vienna IL), Runs with Scissors 50K (Brighton CO),    Greenland Trail 50K (Larkspur CO), Colorado Marathon (Fort Collins CO), Mainly Prairie Series 50K (Miami OK, St. Joseph MO, Hiawatha KS, So. Sioux City NE & Sioux City IA)

 

Marathons 321-330: Mainly Appalachian Series 50K (Mills River NC, Bristol TN, Bluefield WV/VA), Irving Marathon (TX), Mainly Riverboat Series 50K (Winnsboro LA, Lake Village AR, Hollandale MS, Millington TN, Columbus KY)

 

Marathons 311-320: Fort Lauderdale A1A Marathon (FL), FarmDaze Endurance Run (Brooklet GA), Mississippi Trail 50K (Laurel MS), Gulf Coast Series (Beaumont TX, Jennings LA, Gulfport MS, Marianna FL), Appalachian Series (Eufaula AL, Macon GA, Seneca SC)

 

Marathons 301-310: Colorado Cold Rush 50K (Colorado Springs CO), Four Corners Quad Keyah Series (AZ/CO/NM), Texas Marathon Kingwood (TX), Marathon Bahamas (Nassau BAHAMAS), Fort Clinch 50K (Fernandina Beach FL), Arches Ultra 50K (Moab UT), Elephant Mountain 50K (Cave Creek AZ), Outlaw 100 Trail Marathon (Wilburton OK)

 

Marathons 291-300: Bridge Burner 50K (Cañon City CO), Mainly Southwest Series (Farmington NM, Durango CO, Bluff UT, Flagstaff AZ, Laughlin NV & Nipton CA), Kessel Run 60K (Fruita CO), JFK 50 Mile (Boonsboro MD), NCR Marathon (Sparks-Glencoe MD)

 

Marathons 281-290: Maah Daah Hey Trail (Medora ND), Aspen Backcountry Marathon (Aspen CO), Fire + Ice 250K (Dreki ICELAND), 9/11 American Heroes Run (Longmont CO), Mountain RATS 50K (Eagle CO), Red Feather Trail Jamboree 50K (Red Feather Lakes CO), Chicago Marathon (IL), Blue Sky Trail Marathon (Fort Collins CO), Day of the Dead Series (Las Cruces NM)

 

Marathons 271-280: Chase the Moon (Highlands Ranch CO), Mainly Heartland Series (Hicksville OH, Niles MI, Portage IN, Fulton IL, Clinton IA, Sparta WI & St Cloud MN), Full Moon 50K (Ouachita Nat’l Forest AR), Deseret News Marathon (Salt Lake City UT)

 

Marathons 261-270: Denver Colfax Marathon (CO), Weld Your Mettle Heavy Marathon (Windsor CO), Wyoming Marathon (Laramie WY), REVEL Rockies (Morrison CO), The Great Divide 50K (Divide CO), Bear Lake Marathon Trifecta (Saint Charles ID/Cokeville WY/Garden City UT), Manitoba Marathon (Winnipeg MB), Bears Ears 50K (Monticello UT)

 

Marathons 251-260: Mainly Aloha Series (Kapa’a Kaua’i HI), Atlanta Marathon (GA), Long Play 33⅓M (Brooksville FL), Labor of Love Marathon (Las Vegas NV), Rattler 50K (Colorado Springs CO), Hogeye Marathon (Springdale AR), London Marathon (UK), Eugene Marathon (OR), Flying Pig Marathon (Cincinnati OH), Ram Party 50K (Colorado Springs CO)

 

Marathons 241-250: California Int’l Marathon (Sacramento CA), Bell Ringer 50K (Burns TN), Rocket City Marathon (Huntsville AL), Run for the Ranch Marathon (Rogersville MO), New Years DAY Marathon (Allen TX), State 47 Las Cruces Marathon (NM), Coldwater Rumble 52K (Goodyear AZ), Mainly Marathons Aloha Series (Kapa’a Kaua’i HI)

 

Marathons 231-240: Yukon River Trail Marathon (Whitehorse YT), Boulder Rez Marathon (CO), Erie Marathon (PA), Cheyenne Marathon (WY), Berlin Marathon (GERMANY), Boulderthon (Boulder CO), Trapp Lodge Mountain Marathon (Stowe VT), Kansas Rails-to-Trails 50K (Ottawa KS), Southwest Series Day 1 (Farmington NM), Queens Marathon (Flushing Meadows NY)

 

Marathons 221-230: Armed Services Marathon (Grand Haven MI), Weld Your Mettle Heavy Marathon (Windsor CO), Wyoming Marathon (Laramie WY), Chesterfield Gorge 50K (West Chesterfield MA), Mainly Marathons New England Series: Simsbury CT, Lincoln  RI & Holyoke MA, Hatfield McCoy Marathon (Williamson WV), Estes Park Marathon (CO), Northwest Passage Marathon (NUNAVUT)

 

Marathons 211-220: Coastal Delaware Running Festival (Rehoboth Beach DE), Vancouver Marathon (Vancouver BC), Fredericton Marathon (NB), 3 Days at the Fair Marathon (Augusta NJ), Mainly Marathons Prairie Series: St Joseph MO, South Sioux City NE, Sioux City IA, Baltic SD, Wahpeton ND & Breckenridge MN

 

Marathons 201-210: Valentine Massacre Marathon (Greensboro NC), Dalmatian Run Fest: Rescue Rover/Puppy Power/Mighty Mia’s Marathon (Fort Worth TX), Jackalope Jam (Cat Spring TX), SNICKERS Marathon (Albany GA), Pistol Ultra 50K (Alcoa TN), B&A Trail Marathon (Severna Park MD), Trailbreaker Marathon (Waukesha WI), Down the Mountain Marathon (Damascus VA)

 

Marathons 191-200: Equalizer Endurance Run (Des Moines IA), Razorback Running Revival 55K (Mountainburg AR), Grasslands Trail Marathon (Alvord TX), Whitefish Marathon (Whitefish MT), 9/11 American Heroes Run (Longmont CO), Center of the Nation Series Day 1 (Sterling CO), Famous Idaho Potato Marathon (Boise ID), Crooked Creek Trail Marathon (Camp Crooked Creek/Shepherdsville KY), Honolulu Marathon (Honolulu HI), Big Beach Marathon (Gulf Shores AL)

 

Marathons 181-190: Singapore Beach Marathon (SINGAPORE), Marathon Cairo (EGYPT), Sri Chinmoy Inspiration (Amsterdam NL), Icebreaker Marathon (Garden City NY), Southern Cross Marathon (Punta Arenas CHILE), White Continent Marathon (ANTARCTICA),  Red Dirt 50K (Provencal LA), Mississippi Trail 50K (Laurel MS), Seeley 50K (Seeley Lake MT), South Park Trail (Fairplay CO)

 

Marathons 171-180: Bakersfield Marathon (CA), Osaka Marathon (JAPAN), Dallas Marathon (TX), The Huff 50K (Albion IN), Texas Marathon (Kingwood TX), Zoom! Yah! Yah! Indoor Marathon (Northfield MN), Charleston Marathon (Charleston SC), Mobile Marathon (Mobile AL), 8th Continent Marathon (Auckland NZ), Australia Day Marathon (Perth AU)

 

Marathons 161-170: Queen City Marathon (Regina SK), Breck Road Marathon (Breckenridge CO), Roll ‘n Roll Montréal (Montréal QC), Wachau Marathon (Krems AUSTRIA), Long View Marathon (Loveland CO), Spokane Marathon (Spokane WA), Kansas City Marathon (Kansas City MO), REVEL Mt Lemmon (Tucson AZ), Tunnel Hill 50 (Vienna IL), Las Vegas High Roller 26.2 (Las Vegas NV)

 

Marathons 151-160: Bighorn Trail Run (Dayton WY), Black Hills 50K (Sturgis SD), Foot Traffic Flat Marathon (Sauvie Island OR), Cook Park Marathon (Tigard OR), Burnt Creek Marathon (Vancouver WA), Stars & Stripes Marathon (Beaverton OR), King Salmon Marathon (Cordova AK), Overlander Sports Marathon (Yellowknife NWT), Reykjavík Marathon (ICELAND), Hamilton NightGlow Marathon (OH)

 

Marathons 141-150: Fort Smith Marathon (AR), Lost Dutchman Marathon (Apache Junction AZ), Carmel Marathon (IN), Milano Marathon (ITALY), Frisco Railroad Run (Willard MO), Eau Claire Marathon (WI), Nutmeg State Marathon (Hartford CT), Colfax  Marathon (Denver CO), Rocky Mountain 50K (Laramie WY), Deadwood Mickelson Trail Marathon (Deadwood SD)

 

Marathons 131-140: PEI Marathon (Charlottetown PEI), Atlantic City Marathon (NJ), Marine Corps Marathon (Arlington VA), Broomfield Trails Marathon (CO), Nashville Marathon (TN), Magnolia Marathon (Meridian MS), Falls 100 Trail Marathon (Falls of Rough KY), Kiawah Island Marathon (SC), White Continent 50K (ANTARCTICA), Punta Arenas 50K (CHILE)

 

Marathons 121-130: Runoff Runoff Marathon (Creede CO), Knysna Forest Marathon (South AFRICA), Big Sky Marathon (Ennis MT), Juneau Marathon (AK), Mt Sneffels Marathon (Ouray CO), ET Full Moon Midnight Marathon (Area 51 NV), Huffin’ Puffin Marathon (St John’s NL), Bismarck Marathon (ND), Maine Marathon (Portland ME), Twin Cities Marathon (Minneapolis/St Paul MN)

 

Marathons 111-120: Zydeco Marathon (Lafayette LA), Tobacco Road Marathon (Cary NC), Naked Prussian Trail Marathon (Leesport PA), Maratona de São Paulo (São Paulo BRAZIL), Athens Marathon (Athens OH), Riverboat Series Day 7 (Vienna IL), Delaware Marathon (Wilmington DE), Race of Champions (Holyoke MA), Shires of Vermont Marathon (Bennington VT), Buffalo Marathon (NY)

 

Marathons 101-110: Dublin Marathon (Ireland), Rim Rock Marathon (Fruita CO), White River Marathon (Cotter AR), big C Marathon (Puyallup WA), Buckeye Marathon (Buckeye AZ), Hilo to Volcano 50K (Volcano HI), Town of Celebration Marathon (Celebration FL), Mercedes Marathon (Birmingham AL), GW Birthday Marathon (Greenbelt MD), Phoenix Marathon (AZ)

 

Marathons 91-100: REVEL Rockies (Morrison CO), U of Okoboji Marathon (Arnolds Park IA), Nova Scotia Marathon (Barrington Passage NS), Echo Summit Trail Challenge (Twin Bridges CA), Steamboat Stinger Trail Marathon (Steamboat Springs CO), Hawk Trail Marathon (Lawrence KS), Clarence DeMar Marathon (Keene NH), The Bear Chase 50K Trail Race (Lakewood CO), Portland Marathon (OR), Nebraska Marathon (Omaha NE)

 

Marathons 81-90: Groundhog Day Marathon (Grand Rapids MI), Pueblo Marathon (Pueblo CO), Cowtown Marathon (Fort Worth TX), Kirikiriroa Marathon (Hamilton NZ), Savin Rock Marathon (West Haven CT), All-Out Beat the Heat Marathon (Westminster CO), Runs with Scissors Marathon (Brighton CO), Oklahoma City Memorial Marathon (OK), Toronto Marathon (Toronto ON), Gate City Marathon (Nashua NH)

 

Marathons 71-80: Moscow Marathon (Russia), Cache la Poudre Canyon Marathon (Fort Collins CO), Oregon Trail Run of Nebraska (Hebron NE), Ocean State Marathon (Narragansett RI), Marshall University Marathon (Huntington WV), Orlando Marathon (FL), Death Valley Trail Marathon (Furnace Creek CA), 3 Bridges Marathon (Little Rock AR), Spring Hill Marathon (Spring Hill FL), Museum of Aviation Marathon (Warner Robins GA)

 

Marathons 61-70: Illinois Marathon (Champaign-Urbana IL), Colorado Marathon (Fort Collins CO), Coeur d’Alene Marathon (ID), Steamboat Marathon (Steamboat Springs CO), Banff Marathon (Banff AB), Bay of Fundy Int’l Marathon (Campobello Island NB), Aspen Valley Marathon (Aspen CO), Santa Rosa Marathon (CA), American Discovery Trail Marathon (Colorado Springs CO), REVEL Big Cottonwood Marathon (Cottonwood Heights UT)

 

Marathons 51-60: Maui Oceanfront Marathon (Lahaina HI), Moab’s Red Hot 55K (Moab UT), Red Rock Canyon Marathon (Las Vegas NV), Post Oak Challenge 50K (Tulsa OK), Sierra Vista Trail Run 50K (Las Cruces NM), Trail Trashed Marathon (Henderson NV), Bataan Memorial Death March (White Sands NM), Dust Bowl Series Day 4 (Lamar CO), Dust Bowl Series Day 5 (Clayton NM), Rockin’ K Trail Marathon (Ellsworth KS)

 

Marathons 41-50: Hartford Marathon (CT), Baltimore Marathon (MD), Cape Cod Marathon (Falmouth MA), New York City Marathon (NY), C&O Canal Towpath Marathon (Washington DC), Thunder Road Marathon (Charlotte NC), Philadelphia Marathon (PA), St. Jude Memphis Marathon (TN), Monument Valley Marathon (UT), Cause and Effect Marathon (Brighton CO)

 

Marathons 31-40: Casper Marathon (WY), Rock n Roll Seattle Marathon (WA), Charlevoix Marathon (MI), Angel Fire Adventure (NM), San Francisco Marathon (CA), Crater Lake Marathon (OR), Sioux Falls Marathon (SD), Morgantown Marathon (WV), ‘Run with the Amish’ Marathon (West Union OH), New Hampshire Marathon (Bristol NH)

 

Marathons 21-30: Little Rock Marathon (AR), Montgomery Marathon (AL), Ocean Drive Marathon (Cape May NJ), Charlottesville Marathon (VA), Go! St. Louis Marathon (MO), Garmin Marathon (Olathe KS), Kentucky Derby Marathon (Louisville KY), Wisconsin Marathon (Kenosha WI), Fargo Marathon (ND), Vermont City Marathon (Burlington VT)

 

Marathons 11-20: Monument Marathon (Scottsbluff NE), Newport Marathon (RI), Des Moines Marathon (IA), Monumental Marathon (Indianapolis IN), Rock n Roll Las Vegas Marathon (NV), Route 66 Marathon (Tulsa OK), Rehoboth Beach Seashore Marathon (DE), Mississippi Blues Marathon (Jackson MS), Miami Marathon (FL), Myrtle Beach Marathon (SC)

 

Marathons 1-10:  Mayor’s Midnight Sun Marathon (Anchorage AK), Tucson Marathon (AZ), Louisiana Marathon (Baton Rouge LA), Austin Marathon (TX), Georgia Marathon (Atlanta GA), Salt Lake City Marathon (UT), Maine Coast Marathon (Biddeford ME), Grandma’s Marathon (Duluth MN), Missoula Marathon (MT), Mesa Falls Marathon (Ashton ID)