Half Marathon · Month guide

September Half Marathons

September opens the fall half marathon season while temperatures and course conditions still vary widely. The month includes landmark road races, fast city courses, and practical tune-ups for runners building toward a later fall marathon.

Showing all 83 races in this collection. Updated August 2026.

Notable race guides: AJ Bell Great North Run, World Athletics Road Running Championships Copenhagen 26 Half Marathon, Philadelphia Distance Run Half Marathon, and Detroit Women's Half Marathon.

  1. 01Aliferis Half MarathonSaturday, September 5, 2026Alpena, MichiganA long-running Alpena charity race, this point-to-point half follows the flat crushed limestone North Eastern State Trail to a finish in northern Michigan.Guide
  2. 02Green Lake Area 13dot1 Half MarathonSaturday, September 5, 2026Green Lake, WisconsinSold as One Hill of a Race, this Wisconsin half rolls past Big Green Lake and through the Conference Center grounds on a route that never lets you settle.Guide
  3. 03Helsingborg Half MarathonSaturday, September 5, 2026Helsingborg, SwedenHelsingborg Half Marathon blends city streets, forest paths and seaside views on a 21.1-kilometre course hosting Sweden's 2026 half championship.GuideResults
  4. 04Leave No Trace Half MarathonSaturday, September 5, 2026Peninsula, OhioMostly singletrack at Camp Manatoc in the Cuyahoga Valley, on Boy Scout camp trails that open to runners only for this Ohio trail race weekend.Guide
  5. 05Naperville Trails Half MarathonSaturday, September 5, 2026Wheaton, IllinoisCrushed limestone paths through Danada Forest Preserve give DuPage County runners a flat half marathon on trails instead of open suburban roads.Guide
  7. 07Bedford Running Festival Half MarathonSunday, September 6, 2026Bedford, United KingdomBedford Running Festival Half Marathon pairs a Sunday 13.1-mile race with riverside scenery and a large post-race festival in Bedfordshire each year.Guide
  8. 08Kauai Half MarathonSunday, September 6, 2026Poipu, HawaiiTropical scenery and honest climbing define this Poipu half, which passes the Tunnel of Trees before descending to an oceanfront island finish.GuideResults
  9. 09Medellín Half MarathonSunday, September 6, 2026Medellín, ColombiaMedellín Half Marathon covers a certified 21.098-kilometre city route from Parques del Río, pairing a large field with an early tropical start.GuideResults
  10. 10Mercer County Half MarathonSunday, September 6, 2026Robbinsville, New JerseyFlat farm roads out of Robbinsville Community Park, with a hard 3 hour cutoff that makes this central New Jersey half a genuine pace commitment.Guide
  11. 11Oak Tree Half MarathonSunday, September 6, 2026Geneseo, New YorkRun on Labor Day weekend since 2005, the Oak Tree Half Marathon rolls through Genesee Valley farmland and funds local land conservation with every entry.Guide
  12. 12The Big HalfSunday, September 6, 2026London, United KingdomLondon’s community-focused half starts beside Tower Bridge, crosses four boroughs and finishes at the Cutty Sark in Greenwich on a mostly flat route.GuideResults
  13. 13Vibha Bay Area Dream Mile Half MarathonSunday, September 6, 2026Sunnyvale, CaliforniaVibha's Bay Area fundraiser runs a chip timed half with pacers for seven target times, drawing around 200 finishers alongside similar 10K and 5K fields.Guide
  14. 14Wizz Air Budapest Half MarathonSunday, September 6, 2026Budapest, HungaryWizz Air Budapest Half Marathon pairs a large international field with a fast city route past Danube views and landmark architecture in early autumn.Guide
  16. 16Labor Day Half MarathonMonday, September 7, 2026Parker, ColoradoA flat Cherry Creek trail course and a holiday morning start make this Parker half a Colorado PR target, with 10K and 5K races on the same program.Guide
  17. 17Autumn & Ales Half MarathonSaturday, September 12, 2026Scarborough, MaineA flat run along the Scarborough Marsh from an American Legion base, with a beer finish and charity fundraising built into southern Maine's fall calendar.Guide
  18. 18Bar Harbor Bank & Trust Half MarathonSaturday, September 12, 2026Bar Harbor, MaineNine of this Bar Harbor half marathon's miles run on Acadia carriage roads, a hilly gravel course put on by the MDI YMCA past granite bridges.Guide
  19. 19Beat the Blerch Half MarathonSaturday, September 12, 2026Carnation, WashingtonBeat the Blerch Half Marathon mixes playful race-day theming with a flat gravel out-and-back through mossy forest along the Snoqualmie Valley Trail.GuideResults
  20. 20Bird-in-Hand Half MarathonSaturday, September 12, 2026Bird-in-Hand, PennsylvaniaLancaster County farmland carries this rolling half, with aid stations in Amish one-room schoolhouses and a handcrafted horseshoe finisher medal.Guide
  21. 21Black Squirrel Half MarathonSaturday, September 12, 2026Bellvue, ColoradoBlack Squirrel climbs 1,500 feet to Lory State Park's west ridge, then drops onto runnable singletrack with views over Horsetooth Reservoir.Guide
  22. 22Blackwater Canyon Half MarathonSaturday, September 12, 2026Parsons, West VirginiaBlackwater Canyon Half Marathon drops about 1,400 feet from Thomas to Parsons on a scenic point-to-point rail-trail route through West Virginia.GuideResults
  23. 23BurliMOT Half MarathonSaturday, September 12, 2026Minot, North DakotaBurliMOT runs point to point from Burlington into downtown Minot on paved Souris Valley paths, giving North Dakota a cool-weather September half.Guide
  24. 24Charlotte Covered Bridge Half MarathonSaturday, September 12, 2026Shelburne, VermontDirt, gravel, and pavement beside Lake Champlain, on an out and back that sends half marathoners through the Holmes Creek Covered Bridge twice.Guide
  25. 25Essentia Health Dick Beardsley Half MarathonSaturday, September 12, 2026Detroit Lakes, MinnesotaNamed for marathon great Dick Beardsley, this Detroit Lakes half marathon has run for three decades on lake-country Minnesota roads in early fall.Guide
  26. 26Fair on the Square Half MarathonSaturday, September 12, 2026Danville, IndianaDanville's courthouse square sends runners onto farm roads west of Indianapolis and hands finishers a fall festival, under a 3.5 hour course cutoff.Guide
  27. 27Geist Half MarathonSaturday, September 12, 2026Fishers, IndianaGeist Half Marathon rolls along Geist Reservoir in Fishers, a suburban Indianapolis race with waterfront bridges, tree-lined roads, and steady hills.Guide
  28. 28Jones Gap Half MarathonSaturday, September 12, 2026Marietta, South CarolinaSingletrack through the Mountain Bridge Wilderness gives this South Carolina trail half about 2,000 feet of climbing past Rainbow Falls at Jones Gap State Park.Guide
  29. 29Mulberry Island Half MarathonSaturday, September 12, 2026Fort Eustis, VirginiaRun on an active Army post, this Fort Eustis half has been on the calendar since the early 1980s and uses base roads the public rarely gets to see.Guide
  30. 30REVEL Big Cottonwood Half MarathonSaturday, September 12, 2026Salt Lake City, UtahREVEL Big Cottonwood Half Marathon drops out of the Wasatch canyons toward Salt Lake City, giving fast-course runners a scenic September target.GuideResults
  31. 31Swedbank Tallinn Half MarathonSaturday, September 12, 2026Tallinn, EstoniaA Saturday 21K through Tallinn combines Baltic city streets, seaside stretches, and a Toompea finish with a practical three-hour cutoff for runners.Guide
  32. 32AJ Bell Great North RunSunday, September 13, 2026Newcastle upon Tyne, United KingdomThe world’s largest half carries 63,000 runners from Newcastle over the Tyne Bridge to a loud, rolling South Shields finish beside the North Sea.Guide
  33. 33Bozeman Half MarathonSunday, September 13, 2026Bozeman, MontanaBozeman Half Marathon descends from the southern foothills toward a Main Street finish, framed by broad views across Montana's Gallatin Valley.GuideResults
  34. 34Half Marathon-by-the-SeaSunday, September 13, 2026Manchester-by-the-Sea, MassachusettsMassachusetts North Shore half that starts at Manchester Essex High School and runs a certified route past the downtown and the Hamilton lakes.Guide
  35. 35Half-Boring Half-MarathonSunday, September 13, 2026Boring, OregonHalf-Boring turns Oregon's place name into a trail-side race identity, running out and back from Boring Station on the paved Springwater Trail.Guide
  36. 36Hub City Half MarathonSunday, September 13, 2026Crown Point, IndianaCrown Point's USATF-certified out-and-back half keeps entry cheap and logistics simple, with a fairgrounds base and quiet streets in northwest Indiana.Guide
  37. 37Hyundai Porto Half MarathonSunday, September 13, 2026Porto, PortugalA mostly flat Douro-side loop gives Porto's large autumn half a fast profile, historic-city scenery, and a straightforward three-hour limit.GuideResults
  38. 38NM Chips and Salsa Half MarathonSunday, September 13, 2026Albuquerque, New MexicoFlat roads at 5,000 feet carry this Albuquerque half across the Rio Grande and back through the North Valley during New Mexico's green chile season.Guide
  39. 39The Racefaster Half MarathonSunday, September 13, 2026Paramus, New JerseyFlat, fast North Jersey half on car-free Saddle River County Park paths, organized by the Racefaster running store with an optional training program entry.Guide
  40. 40Visite de Broussard Half MarathonSunday, September 13, 2026Broussard, LouisianaA charity half in Acadiana that treats 13.1 as the main event, starting at dawn from the Broussard Sports Complex with proceeds going to Love Acadiana.Guide
  41. 41YMCA Harrisburg Half MarathonSunday, September 13, 2026Harrisburg, PennsylvaniaAbout as flat as 13.1 gets in central Pennsylvania: a City Island start, Susquehanna riverfront miles, and a field that regularly clears 450 runners.Guide
  42. 42Air Force Half MarathonSaturday, September 19, 2026Dayton, OhioAviation history frames this Dayton half, linking Wright State and Wright-Patterson before a memorable finish at the iconic U.S. Air Force museum.GuideResults
  44. 44Autumn Run Half MarathonSaturday, September 19, 2026Buena Vista, ColoradoShuttle-only start at 9,550 feet west of Buena Vista, then roughly 2,500 feet of descent on mostly dirt roads into the upper Arkansas River valley.Guide
  45. 45Buffalo Bill Cody Half MarathonSaturday, September 19, 2026Cody, WyomingSmall-town Wyoming half starting and finishing at City Park in downtown Cody, run near 5,000 feet with September mountain air and a beer at the line.Guide
  46. 46Circle the Lake Half MarathonSaturday, September 19, 2026Faribault, MinnesotaA rolling loop past Circle Lake in rural Rice County, Minnesota, on mixed paved and gravel roads, with entry fees funding lake water quality projects.Guide
  47. 47Devil After Dark Half MarathonSaturday, September 19, 2026Las Vegas, NevadaDevil After Dark starts near sunset in Lovell Canyon, replacing Las Vegas heat and neon with moonlit forest roads beneath the Spring Mountains.Guide
  48. 48Escanaba Fall Classic Half MarathonSaturday, September 19, 2026Escanaba, MichiganUpper Peninsula half on flat ground beside Little Bay de Noc, starting and finishing in Ludington Park with a September course built for even splits.Guide
  49. 49Mattoni Ústí nad Labem Half MarathonSaturday, September 19, 2026Ústí nad Labem, CzechiaMattoni Ústí nad Labem Half Marathon is a flat 21.097-kilometre city race with an unusual industrial passage and a 3,500-runner field in northern Czechia.Guide
  50. 50Orca Half MarathonSaturday, September 19, 2026Seattle, WashingtonA flat, USATF-certified point-to-point along Puget Sound, run twice in one September weekend from Lincoln Park to Alki with skyline and island views.Guide
  51. 51Alameda Island Half MarathonSunday, September 20, 2026Alameda, CaliforniaA flat September half looping Alameda's island streets and shoreline from Alameda Point, with entry fees supporting the Alameda Education Foundation.Guide
  53. 53Belfast City Half MarathonSunday, September 20, 2026Belfast, United KingdomBelfast City Half Marathon takes a large field from Ormeau Park across the capital on a supported 13.1-mile course with a three-hour limit each autumn.GuideResults
  54. 54Capital City River Run Half MarathonSunday, September 20, 2026Lansing, MichiganLansing's long-running fall half marathon mixes downtown streets with the paved Lansing River Trail along the Grand River and the Red Cedar River.Guide
  56. 56DC HalfSunday, September 20, 2026Washington, District of ColumbiaDC Half is a locally organized 13.1-mile race from West Potomac Park, giving runners a focused fall half in the nation's capital in September.Guide
  57. 57Detroit Women's Half MarathonSunday, September 20, 2026Detroit, MichiganA women's half marathon on the roads of Belle Isle Park, with the Detroit skyline on one side of the island and the Windsor waterfront on the other.Guide
  58. 58Fall Equinox Half MarathonSunday, September 20, 2026Fort Collins, ColoradoA point-to-point downhill half through the Poudre River Canyon near Fort Collins, starting at the Mishawaka Amphitheatre and ending at a field party.Guide
  59. 59Fleet Feet Rochester Half MarathonSunday, September 20, 2026Rochester, New YorkFleet Feet Rochester Half Marathon blends Genesee River scenery, neighborhood support and purposeful elevation changes on a fall city route.GuideResults
  60. 60Hokie Half MarathonSunday, September 20, 2026Blacksburg, VirginiaBlacksburg's college-town half caps entry at 2,000 runners and mixes town roads with the paved Huckleberry Trail near the Virginia Tech campus.Guide
  62. 62Wicked Half MarathonSunday, September 20, 2026Salem, MassachusettsSalem hosts a USATF-certified September half through Salem and Marblehead, starting and finishing at Salem Willows before Halloween crowds take over.Guide
  64. 64Akron Half MarathonSaturday, September 26, 2026Akron, OhioAkron Half Marathon delivers a downtown Ohio tour with early climbing, a faster closing five miles and a major finish-line atmosphere each September.GuideResults
  65. 65Betsie Valley Trail Run Half MarathonSaturday, September 26, 2026Thompsonville, MichiganAn out-and-back half on the Betsie Valley Trail's flat crushed-stone rail bed, crossing Dair Creek and the Betsie River through northern Michigan forest.Guide
  66. 66Carrollton Half MarathonSaturday, September 26, 2026Carrollton, GeorgiaWest Georgia's sellout half marathon starts on Adamson Square, runs past Lake Carroll at sunrise, and rolls through the shaded Carrollton GreenBelt.Guide
  67. 67Colbert Autumn Classic Half MarathonSaturday, September 26, 2026Colbert, WashingtonA Spokane-area club half that has run for nearly five decades, covering quiet back roads through Colbert and Green Bluff farm country in late September.Guide
  68. 68Finger Lakes Half MarathonSaturday, September 26, 2026Montour Falls, New YorkRail trail half near Watkins Glen that shares its Saturday with an 18 miler, which makes it a common tune up inside a fall marathon training block.Guide
  69. 69Fort4Fitness Half MarathonSaturday, September 26, 2026Fort Wayne, IndianaFort4Fitness Half Marathon brings a large community field through Fort Wayne before a memorable ballpark finish inside downtown Parkview Field.GuideResults
  70. 70Jamestown Rhode Races Half MarathonSaturday, September 26, 2026Jamestown, Rhode IslandThe Jamestown Rhode Races half loops nearly all of Conanicut Island, with Narragansett Bay views, a Pell Bridge backdrop, and a long climb near mile 9.Guide
  71. 71Margaritaville Run Orlando Half MarathonSaturday, September 26, 2026Kissimmee, FloridaA flat resort half marathon from Margaritaville Resort Orlando to the Promenade at Sunset Walk, with an early start and a 3:45 course time limit.Guide
  72. 72Park2Park Half MarathonSaturday, September 26, 2026Holland, MichiganHolland's shoreline half links Lake Macatawa, Holland State Park, and Lakeshore Drive on a certified loop with a firm 16 minute per mile course cutoff.Guide
  73. 73Run Iron Mountain Half MarathonSaturday, September 26, 2026Iron Mountain, MichiganRun Iron Mountain pairs a scenic Dickinson County half with a community-led race day that has raised nearly $200,000 for local charities since 2012.Guide
  74. 74St. Luke's FitOne Half MarathonSaturday, September 26, 2026Boise, IdahoBoise's largest community race sends half marathoners past the Capitol, the Old Idaho Penitentiary, and the Boise Depot before a finish in Ann Morrison Park.Guide
  75. 75Wonderful Water RunSaturday, September 26, 2026Stevens Point, WisconsinA volunteer-run Stevens Point half along the Wisconsin River and city trails, where race proceeds fund land and water conservation in central Wisconsin.Guide
  76. 76YMCA Maple Leaf Half MarathonSaturday, September 26, 2026La Crosse, WisconsinLa Crosse runs this half from Riverside Park over part of the Oktoberfest parade route, under a hard 2 hour 45 minute cutoff before the parade starts.Guide
  77. 77Zanesville City Half MarathonSaturday, September 26, 2026Zanesville, OhioZanesville built its half around the three way Y Bridge, looping historic neighborhoods on about 414 feet of total elevation change under a 3.5 hour limit.Guide
  78. 78Auburn Half MarathonSunday, September 27, 2026Auburn, CaliforniaGold Country trail half that measures nearer 13.6 miles than 13.1, climbs about 2,465 feet, and crosses No Hands Bridge on the Western States Trail.Guide
  79. 79Bluegrass Half MarathonSunday, September 27, 2026Johnson City, TennesseeTurn-heavy East Tennessee half through downtown Johnson City, Mountain Home and the ETSU campus, with a relay running the same certified route.Guide
  80. 80City of Roses Half MarathonSunday, September 27, 2026Cape Girardeau, MissouriMissouri's long-running City of Roses Half follows paved trail and neighborhood roads from Cape Girardeau, with relay teams and an early-start option.Guide
  81. 81H.C. Andersen Half MarathonSunday, September 27, 2026Odense, DenmarkH.C. Andersen Half Marathon offers a traffic-free 21.097-kilometre tour of Odense, combining city streets and festival support in early autumn.Guide
  82. 82Life Time Chicago Half MarathonSunday, September 27, 2026Chicago, IllinoisRare traffic-restricted access to Lake Shore Drive defines this flat South Side half, with skyline views and a Jackson Park start and finish.GuideResults
  83. 83Palisades Half MarathonSunday, September 27, 2026Fort Lee, New JerseyA paved half along the Palisades ridge above the Hudson, with over 1,400 feet of climbing and shuttle access from Manhattan to the Fort Lee start.Guide