Sign up for the 2021 Houston Half Marathon & 10K!
Registration for the 2021 Houston Half Marathon & 10K begins Monday, March 15.

Can I switch events, transfer my bib, or defer my registration?

Upgrade from 10k to half marathon distance
Please click here. Click the Transfer link on the top left (desktop display) or from the drop-down menu on top of the page (mobile display). Choose Transfer to a new sub-event, and follow the instructions to switch your event. The upgrade comes with a $10 fee + difference in event cost. The deadline for upgrades is October 10, 2021.

Downgrade from half marathon to 10k distance
Please click here. Click the Transfer link on the top left (desktop display) or from the drop-down menu on top of the page (mobile display). Choose Transfer to a new sub-event, and follow the instructions to switch your event. The upgrade comes with a $10 fee. The deadline for upgrades is October 10, 2021.

Transfer registration to another person
Please click here. Click the Transfer link on the top left (desktop display) or from the drop-down menu on top of the page (mobile display). Choose Transfer to a new participant, and follow the instructions to initiate the transfer. The transfer comes with a $15 fee. The deadline for upgrades is October 10, 2021.

Defer registration entry
Deferrals can be requested up to October 10, 2021. No deferrals will be accepted past the October deadline.

No refunds will be issued
This is a rain or shine event and a portion of all proceeds benefit Memorial Park Conservancy and the Houston Parks and Recreation Department as well as numerous other area non-profits.