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Run Vibes

Half Marathons in Washington

Washington has 128 upcoming Half Marathons. Half marathons are the fastest-growing race distance, offering a true endurance challenge with a more accessible training window than the full marathon.

128 upcoming races listed

Fun racesScenic racesCompetitive racesQuirky racesFestive racesFor a Cause racesBeginner-friendly
Pirate 5K, 10K, & 13.1M at Olympia, WA (15)

Set sail for a fun run or half marathon in Olympia, complete with a pirate theme and a best costume contest.

  • Fun
  • Competitive
  • Quirky
Sat, Apr 11, 2026, 8:30 AM PDT13.1 MilesOlympia, WA
Steady EffortRUN

Course · Rolling · Timed race

Pirate 5K, 10K, & 13.1M at Everett, WA (15)

Set sail for a spirited run at this pirate-themed event in Everett, featuring a costume contest and multiple distances.

  • Fun
  • Competitive
  • Quirky
Sat, Apr 11, 2026, 8:30 AM PDT13.1 MilesEverett, WA
Steady EffortRUN

Course · Hilly · Timed race

The Split

Celebrate spring with a scenic half marathon along the Spokane River, starting and finishing in vibrant Riverfront Park.

  • Scenic
  • Festive
Sun, Apr 12, 2026, 8:30 AM PDT13.1 MilesSpokane, WA
Steady EffortRUN

Course · Hilly · Timed race

Seattle Cherry Blossom Run

Embrace the beauty of spring at the Seattle Cherry Blossom Run, offering 5K, 10K, and Half-Marathon routes amidst stunning blossoms.

  • Fun
  • Scenic
  • Festive
Sat, Apr 18, 2026, 7:30 AM PDT13.1 MilesSeattle, WA
Push PotentialRUN

Course · Hilly · Timed race

Earth Day Run

Join the Earth Day Run for a half marathon in Seattle, WA. Find full details on the Magnuson Series website.

Sat, Apr 18, 2026, 10:00 AM PDT13.1 MilesSeattle, WA
Steady EffortRUN

Course · Hilly · Timed race

Run for Donuts 5K/10K/13.1 SEATTLE

Run a beautiful course, enjoy a stress-free atmosphere, and earn delicious donuts at the finish line. All paces welcome.

  • Fun
  • Scenic
  • Quirky
  • For a Cause
Sat, Apr 25, 2026, 7:30 AM PDT13.1 MilesSeattle, WA
Push PotentialRUN

Course · Hilly · Timed race

Coffee Lovers Run 5K/10K/13.1 SEATTLE

Embrace your love for coffee and running in Seattle, enjoying a supportive, stress-free event that also gives back to charity.

  • Fun
  • Quirky
  • For a Cause
Sat, Apr 25, 2026, 7:30 AM PDT13.1 MilesSeattle, WA
Push PotentialRUN

Course · Hilly · Timed race

Pirate 5K, 10K, & 13.1M at Camas, WA (17)

Embrace your inner pirate at this themed 5K, 10K, or half marathon in Camas, WA, complete with a best costume award.

  • Fun
  • Competitive
  • Quirky
Sat, Apr 25, 2026, 8:00 AM PDT13.1 MilesCamas, WA
Steady EffortRUN

Course · Hilly · Timed race

Pirate 5K, 10K, & 13.1M at Spokane, WA (17)

Embrace your inner pirate for a hilly 5K, 10K, or half marathon in Spokane, featuring a best costume award and finisher medals.

  • Fun
  • Competitive
  • Quirky
Sat, Apr 25, 2026, 8:30 AM PDT13.1 MilesSpokane, WA
Steady EffortRUN

Course · Hilly · Timed race

Spring Classic Duathlon, Half, 10k & 5k

Shake off winter rust on a beautiful, flat, and fast course. Choose a Duathlon or a Half, 10K, or 5K run to kick off your season.

  • Fun
  • Scenic
  • Competitive
Sun, Apr 26, 2026, 7:45 AM PDT13.1 MilesVancouver, WA
Steady EffortRUN

Course · Rolling · Timed race

Sunrise Marathon 5K/10K/13.1 SEATTLE

Embrace a beautiful sunrise and scenic views in Seattle, enjoying a supportive, stress-free run that gives back to charity.

  • Fun
  • Scenic
  • For a Cause
Sat, May 2, 2026, 7:30 AM PDT13.1 MilesSeattle, WA
Push PotentialRUN

Course · Hilly · Timed race

Cinco De Mayo Run 5K/10K/13.1 SEATTLE

Celebrate Cinco de Mayo with a supportive run focused on personal goals, community, and giving back, all in a stress-free setting.

  • Fun
  • Festive
  • For a Cause
Sat, May 2, 2026, 7:30 AM PDT13.1 MilesSeattle, WA
Push PotentialRUN

Course · Hilly · Timed race

Never Say Never Half Marathon & 10K

Run a picturesque course, support a local youth center, and celebrate with a lively finish line party at this community-focused event.

  • Fun
  • Scenic
  • Competitive
  • Quirky
  • Festive
Sat, May 2, 2026, 8:00 AM PDT13.1 MilesTieton, WA
Push PotentialRUN

Course · Hilly · Walkers welcome

Luau 5K, 10K, & 13.1M at Everett, WA (18)

Embrace the Luau spirit at this themed run in Everett, featuring multiple distances, a hilly course, and a fun best costume contest.

  • Fun
  • Competitive
  • Quirky
  • Festive
Sat, May 2, 2026, 8:30 AM PDT13.1 MilesEverett, WA
Steady EffortRUN

Course · Hilly · Timed race

Kirkland Half Marathon & 5K

A community-focused half marathon and 5K on a familiar, hilly course, offering great perks and a charity donation.

  • For a Cause
Sun, May 3, 2026, 7:30 AM PDT13.1 MilesKirkland, WA
Steady EffortRUN

Course · Hilly · Family-oriented

Snohomish Women's Run

A supportive, scenic run along the Snohomish River, perfect for chasing a PR or enjoying a fun day with friends.

  • Fun
  • Scenic
  • Competitive
Sat, May 9, 2026, 7:00 AM PDT13.1 MilesEverett, WA
Push PotentialRUN

Course · Hilly · Timed race

Luau 5K, 10K, & 13.1M at Everett, WA (19)

Embrace the Luau spirit in Everett, WA, with a themed run, costume fun, and a looped course for all distances.

  • Fun
  • Competitive
  • Quirky
  • Festive
Sat, May 9, 2026, 8:30 AM PDT13.1 MilesEverett, WA
Steady EffortRUN

Course · Hilly · Timed race

Luau 5K, 10K, & 13.1M at Olympia, WA (19)

Join for a luau-themed run in Olympia, featuring multiple loops, finisher medals, and a chance to win the best costume award.

  • Fun
  • Competitive
  • Quirky
  • Festive
Sat, May 9, 2026, 8:30 AM PDT13.1 MilesOlympia, WA
Steady EffortRUN

Course · Rolling · Timed race

San Juan Island Half

Experience a breathtaking half marathon on San Juan Island, where stunning coastal views meet a memorable island escape.

  • Scenic
Sat, May 9, 2026, 8:45 AM PDT13.1 MilesFriday Harbor, WA
Steady EffortRUN

Course · Hilly · Timed race

Super Mom 5K/10K/Half Marathon - Portland (Washougal)

A heartfelt run celebrating the strength and love of moms, offering 5K, 10K, and Half Marathon distances.

  • Fun
  • Competitive
  • Festive
Sun, May 10, 2026, 8:00 AM PDT13.1 MilesWashougal, WA
Push PotentialRUN

Course · Hilly · Timed race

Luau 5K, 10K, & 13.1M at Everett, WA (20)

Run with a festive luau vibe in Everett, WA, where costumes are encouraged and finisher medals await.

  • Fun
  • Competitive
  • Quirky
  • Festive
Sat, May 16, 2026, 8:30 AM PDT13.1 MilesEverett, WA
Push PotentialRUN

Course · Hilly · Timed race

Luau 5K, 10K, & 13.1M at Pasco, WA (20)

Embrace the spirit of the islands at the Luau 5K, 10K, and Half Marathon, featuring a fun course and best costume award.

  • Fun
  • Competitive
  • Quirky
  • Festive
Sat, May 16, 2026, 8:30 AM PDT13.1 MilesPasco, WA
Steady EffortRUN

Course · Rolling · Timed race

Reflection Run

Honor service members and support military non-profits on a beautiful course along the Columbia River.

  • Scenic
  • For a Cause
Sun, May 17, 2026, 8:45 AM PDT13.1 MilesWashougal, WA
Push PotentialRUN

Course · Hilly · Timed race

Run for Mental Health 5K/10K/13.1 SEATTLE

Run with heart and purpose in Seattle to support mental health awareness in a welcoming, stress-free environment.

  • For a Cause
Sat, May 23, 2026, 7:30 AM PDT13.1 MilesSeattle, WA
Push PotentialRUN

Course · Hilly · Timed race

See all 128 Half Marathons in Washington →

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More Half Marathon races

All races in WashingtonHalf Marathons in Seattle, WAHalf Marathons in Everett, WAHalf Marathons in Spokane, WAHalf Marathons in Olympia, WAHalf Marathons in Puyallup, WAHalf Marathons in Pasco, WAHalf Marathons in Richland, WAHalf Marathons in Camas, WAHalf Marathons in Redmond, WAHalf Marathons in Woodinville, WAHalf Marathons in Yakima, WAHalf Marathons in Port Angeles, WAHalf Marathons in Tacoma, WAHalf Marathons in Vancouver, WAHalf Marathons in Auburn, WA

Other distances in Washington

5Ks in Washington10Ks in WashingtonMarathons in Washington