Marathon Races in Idaho

Find upcoming marathon races in Idaho — with dates, locations, and direct registration links.

25 upcoming marathon races found in Idaho

Upcoming Marathon Races in Idaho

Boise Half Marathon+1

Nov 14

Boise Half Marathon

Sat, November 14, 2026

Boise, ID

View Race

Marathon+3

Oct 10

City of Trees Marathon

Sat, October 10, 2026

Boise, ID

View Race

Marathon+6

Oct 10

Hayden Lake Marathon

Sat, October 10, 2026

Hayden Lake, ID

View Race

Marathon+3

Oct 17

Idaho Running Day

Sat, October 17, 2026

Boise, ID

View Race

50K+3

Sep 18

Priest Lake Marathon

Sat, September 18, 2027

Priest Lake, ID

View Race

Race The Wolf Trail Marathon+3

Jun 19

Race the Wolf

Sat, June 19, 2027

Sandpoint, ID

View Race

1 Mile Run/Walk+4

Nov 7

ZD30 The Summit (1 Mile, 5K, and 10K, 1/2 Marathon, 30 Mile Ultra)

Sat, November 7, 2026

Boise, ID

View Race

Ultra+1

Oct 4

Moscow Mountain Madness 50k, Half Marathon & 5M

Sun, October 4, 2026

Moscow, ID

View Race

Half Marathon+2

Oct 25

Halloween Hustle Half Marathon, 10k & 5k

Sun, October 25, 2026

Coeur dAlene, ID

View Race

Marathon+4

May 2

Boise River Marathon

Sun, May 2, 2027

Boise, ID

View Race

Marathon+5

Oct 11

City of Trees Marathon

Sun, October 11, 2026

Boise, ID

View Race

5k+2

Oct 24

Eternal Surrender 5K, 10K and Half Marathon

Sat, October 24, 2026

Coeur D Alene, ID

View Race

Haunted Half Marathon+7

Oct 25

Halloween Hustle

Sun, October 25, 2026

Coeur d'Alene, ID

View Race

Haunted 5k+3

Oct 24

Haunted Half Marathon and 5k by Run the Undergrad

Sat, October 24, 2026

Rexburg, ID

View Race

Half Marathon

Apr 17

Race to Robie Creek®

Sat, April 17, 2027

Boise, ID

View Race

1/2 Marathon+2

Oct 10

Rush Creek Stampede

Sat, October 10, 2026

Cambridge, ID

View Race

Marathon+3

May 15

YMCA Famous Idaho Potato Marathon & Fun Runs

Sat, May 15, 2027

Boise, ID

View Race

Half Marathon+2

Oct 24

YMCA Halloween Run presented by Micron

Sat, October 24, 2026

Boise, ID

View Race

5K+8

Aug 22

Popsicle 5K/10K/Half - Boise

Sun, August 22, 2027

Boise, ID

View Race

Marathon+7

May 29

CDA Marathon

Sat, May 29, 2027

Coeur d'Alene, ID

View Race

Half Marathon+2

Oct 24

Eternal Surrender Half Marathon

Sat, October 24, 2026

Coeur D Alene, ID

View Race

Half Marathon+5

Apr 24

Spring Dash

Sat, April 24, 2027

Coeur d'Alene, ID

View Race

5k Run+4

Jun 4

Sandpoint Marathon

Fri, June 4, 2027

Sandpoint, ID

View Race

Marathon+11

Sep 4

27th Annual Pocatello Marathon

Sat, September 4, 2027

Pocatello, ID

View Race

The Long Bridge Half-Marathon+2

May 8

Long Bridge Half-Marathon

Sat, May 8, 2027

Sandpoint, ID

View Race