How do I register for the 3M Half Marathon?

Registration is handled by the organizer at downhilltodowntown.com.

Spectator Guide · 3M Half Marathon

3M Half Marathon Spectator Guide

October 29, 2026 · 3 min read

Large half marathon in Austin. Base at the start/finish area.

The 3M Half Marathon is a large field event in Austin. Spectators should base at the start/finish area.

Use the official parking and closure information. Arrive early.

Agree on a landmark outside the finish chute.

When is the 3M Half Marathon?: Sunday, January 17, 2027.
How do I register for the 3M Half Marathon?: Registration is handled by the organizer at downhilltodowntown.com.

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