Running races in or near Castroville, TX
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Castroville, TX area. Races listed here include both walking and running events of various distances — from 1-milers, to 5Ks, to marathons, and everything else in between.
ALAMO 13.1 HALF (3/1/26) - Individual Registration
Organization: PURPOSE RACING
Date of Race: 02-28-2026
Description:
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ALAMO 10 (10/18/25) - Individual Age group/open
Organization: PURPOSE RACING
Date of Race: 10-18-2025
Description:
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ALAMO MARATHON (3/1/26) - Individual Registration
Organization: PURPOSE RACING
Date of Race: 02-28-2026
Description:
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ALAMO MARATHON (3/1/26) - Military/First Responders
Organization: PURPOSE RACING
Date of Race: 02-28-2026
Description:
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ALAMO 13.1 HALF (3/1/26) - Military/First Responders
Organization: PURPOSE RACING
Date of Race: 02-28-2026
Description:
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ALAMO DONUT DASH 5k (10/18/25) - Individual Age ...
Organization: PURPOSE RACING
Date of Race: 10-18-2025
Description:
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ALAMO DONUT DASH 10k (10/18/25) - Individual Age ...
Organization: PURPOSE RACING
Date of Race: 10-18-2025
Description:
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ALAMO DONUT DASH 10k (2/28/26) - Individual Registration
Organization: PURPOSE RACING
Date of Race: 02-28-2026
Description:
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ALAMO DONUT DASH 5k (2/28/26) - Individual Registration
Organization: PURPOSE RACING
Date of Race: 02-28-2026
Description:
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Virtual Alamo Donut Dash 5k/10k - Alamo Donut ...
Organization: PURPOSE RACING
Date of Race: 02-28-2026
Description:
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Virtual Alamo Donut Dash 5k/10k - Alamo Donut ...
Organization: PURPOSE RACING
Date of Race: 02-28-2026
Description:
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ALAMO DONUT DASH 5k (10/18/25) - Donut Dash ...
Organization: PURPOSE RACING
Date of Race: 10-18-2025
Description:
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Virtual RUN THE ALAMO 13.1 & Marathon - ...
Organization: PURPOSE RACING
Date of Race: 02-28-2026
Description:
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ALAMO DONUT DASH 5k (10/18/25) - Donut Dash ...
Organization: PURPOSE RACING
Date of Race: 10-18-2025
Description:
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Virtual RUN THE ALAMO 13.1 & Marathon - ...
Organization: PURPOSE RACING
Date of Race: 02-28-2026
Description:
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Complete list of running events in and near Castroville, TX: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Castroville
About Castroville
Castroville (TX) is a city in Medina County with an estimated population of 2,680.[4]
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Did you know?
Historically, more marathons are run in the month of October than any other month (in the U.S.).
