Running Races Calendar 2027: Marathons, Halfs, 10Ks and Trails

Running Races Calendar 2027: Marathons, Halfs, 10Ks and Trails

Every 2027 race in the US, month by month, with dates, distances and registration links — plus the training plan to get you there

Build my 2027 plan

Registration for 2027 races opens in the fall, and the big ones sell out or go to lottery months ahead. This page gathers the 2027 running races listed on RunRun — marathons, half marathons, 10Ks, trail and ultra — sorted month by month and updated automatically as organizers confirm their dates. Pick your race, then let RunRun build the training plan that gets you to the start line.

2315 running races in 2027

Full calendar →

Road races and trail runs listed on RunRun, updated automatically. Linked race pages give dates, distances and registration links.

Marquee races of 2027

Month by month

January 2027 276 races

See the 266 other races this month →

February 2027 359 races

See the 349 other races this month →

March 2027 303 races

See the 293 other races this month →

April 2027 373 races

See the 363 other races this month →

May 2027 302 races

See the 292 other races this month →

June 2027 234 races

See the 224 other races this month →

July 2027 286 races

See the 276 other races this month →

August 2027 168 races

See the 158 other races this month →

September 2027 1 races

October 2027 7 races

  • Oct 4Norwood Day 5k📍 Norwood3.1 mi
  • Oct 9UltraTrax Alpine Valley📍 Elkhorn7 mi · 14 mi · 21 mi · 28 mi
  • Oct 10Toughest Last Man Standing Utah (Tushar Mountains)📍 Beaver0 mi
  • Oct 16Keyesville Classic📍 Lake Isabella25 mi · 10 mi · 3.1 mi · 16 mi
  • Oct 17Big Bear SquaTCh South📍 Tuxedo6.2 mi · 13.1 mi
  • Oct 24Great Run Austin📍 Austin6.2 mi · 3.1 mi
  • Oct 31The Next Loop Endurance Series - New England📍 Plainville31.1 mi · 26.2 mi · 13.1 mi · 6.2 mi

November 2027 5 races

  • Nov 63 State Marathon - 26.2 - 13.1 - 10K - 5K📍 Mesquite26.2 mi · 13.1 mi · 6.2 mi · 3.1 mi
  • Nov 13Salute to Service Run - NE📍 Bellevue13.1 mi · 6.2 mi · 3.1 mi
  • Nov 13Jersey Shore Ultras📍 Wildwood Gables62.1 mi · 31.1 mi · 15.5 mi
  • Nov 27Squatchy Leftovers Trail Race📍 West Orange6.2 mi · 31.1 mi · 15.5 mi · 3.1 mi
  • Nov 28The Golden Hour📍 Conestee1 h

December 2027 1 races

2026 calendar →

Why choose RunRun?

Every 2027 race, month by month

Over 2,400 US races already dated for 2027, and 8,000 worldwide. The list below updates itself as dates are confirmed.

By distance

Marathon, half marathon, 10K, trail, ultra: compare dates within one family and find the race that matches your goal.

Register at the right time

Boston, Chicago, New York, Peachtree: race pages show registration windows and lotteries so you don't miss the door.

From race to training plan

Add the race as your goal on RunRun: the plan is built around the date, your level and your weekly availability, then adapts week after week.

The right lead time

10K: 8 weeks. Half: 12 weeks. Marathon: 16 weeks. Ultra: 20 weeks. RunRun tells you today when to start for any 2027 race.

Free, no credit card

The calendar, race pages and training plan are free. Create your account in a minute and start your 2027 season.

Key dates of the 2027 season

W1

Winter 2027 (January - March)

Fast winter marathons and the first big road races of the year.

  • •Walt Disney World Marathon — January 7, 2027
  • •Houston Marathon — January 9, 2027
  • •Los Angeles Marathon — March 6, 2027
  • •Cooper River Bridge Run 10K — March 27, 2027
W2

Spring 2027 (April - June)

Peak marathon season, headlined by Boston and the big spring 10Ks.

  • •Boston Marathon — April 19, 2027
  • •Pittsburgh Marathon — May 2, 2027
  • •Lilac Bloomsday Run — May 2, 2027
  • •Bolder Boulder 10K — May 31, 2027
W3

Summer 2027 (July - August)

Classic summer road races and the heart of the ultra season.

  • •Peachtree Road Race 10K — July 4, 2027
  • •Vermont 100 — July 17, 2027
  • •San Francisco Marathon — July 25, 2027
W4

Fall 2027 (September - December)

The World Marathon Majors stretch — dates to be confirmed by organizers, updated automatically above.

  • •Berlin Marathon — September 2027
  • •Chicago Marathon — October 2027
  • •Marine Corps Marathon — October 2027
  • •New York City Marathon — November 2027
  • •California International Marathon — December 2027

Choosing your 2027 race

1

Set the goal first, then the date

A first marathon takes 16 weeks, a half 12, a 10K 8. Count back from the race to know when the plan starts — and check it fits your calendar.

2

Register early for the majors

Boston, Chicago, New York and Peachtree run on qualifying times, lotteries or waves and fill months ahead. RunRun race pages show registration dates.

3

A tune-up race 6 to 8 weeks out

A 10K before a half, a half before a marathon: the tune-up validates your pace and builds confidence. Find it in the same month of the calendar.

4

Check the course and the weather

Chase a PR on a flat course in spring or fall. Pick a trail by its climb: 13 miles with 2,500 ft of gain is a different race from 13 miles with 6,500 ft.

5

Keep the holidays for fun runs

Turkey trots, jingle bell runs and night races keep you moving without pressure before the 2027 build starts.

landing.faq

When does registration open for the big 2027 races?
Most major marathons open 6 to 9 months out: Boston 2027 (April 19) opens in September 2026 for qualifiers; Chicago and New York run lotteries in late winter. RunRun race pages show the opening date as soon as it is known.
Which are the biggest US marathons in 2027?
Houston (January 9), Los Angeles (March 6), Boston (April 19), Pittsburgh (May 2) and San Francisco (July 25) are already dated. Chicago, Marine Corps, New York and CIM confirm their fall dates in the spring.
How is this calendar built?
RunRun lists over 50,000 race editions. This page automatically shows those dated in 2027 in your country, month by month, and updates when a new date is confirmed.
When should I start training for a spring 2027 race?
For a marathon in April 2027, the plan starts mid-December 2026 (16 weeks). For a half in March, early December (12 weeks). RunRun computes the start date from the race you pick.
Are the calendar and the plan free?
Yes. The calendar, race pages and training plan generation are free, no credit card required. Premium options (watch sync, advanced analytics) are optional.

Your 2027 race is waiting

Pick it from the calendar, set it as your goal, and RunRun generates your personalized training plan — free, no credit card.

Build my 2027 plan