October 2025 Marathons

January•February•March•April•May•June•July•August•September•October•November•December

Complete list of133marathons happening in October 2025 with dates, locations, and registration information.

NEW: Marathon Search Tool

Find your next race using our advanced marathon search tool.

1...8 9 10...14

Mathews Marathon

Mathews, Virginia

October 18, 2025

Trapp Lodge Mountain Marathon

Stowe, Vermont

October 18, 2025

Bobcat Trail Marathon

Glouster, Ohio

October 18, 2025

Baltimore Marathon

Baltimore, Maryland

October 18, 2025

Baystate Marathon

Lowell, Massachusetts

October 19, 2025

Ljubljana Marathon

Ljubljana, Slovenia

October 19, 2025

Toronto Waterfront Marathon

Toronto, Canada

October 19, 2025

Duke City Marathon

Albuquerque, New Mexico

October 19, 2025

Mount Desert Island Marathon

Bar Harbor, Maine

October 19, 2025

Detroit Free Press Marathon

Detroit, Michigan

October 19, 2025

1...8 9 10...14

Help Grow Our Marathon Community

Are you a race director, running enthusiast, or seasoned marathon runner? Share your knowledge to help runners discover great races. Every submission makes our directory better.

Submit New Marathon Report Correction