Half-Marathon races near San Antonio, Texas — 2026 running calendar

Sloth Run 5K/10K/13.1 SAN ANTONIO

San Antonio, Texas, United States

Jun 20, 2026 (Sat) – Aug 29, 2026

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Run Juneteenth Day 5K/10K/13.1 SAN ANTONIO

San Antonio, Texas, United States

Jun 20, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

Texas Sun Showdown Half Marathon, Relay & 5k

San Antonio, Texas, United States

Jun 14, 2026 (Sun)

Running

Half-Marathon 5K +2

SuperHeroes Run 5K/10K/13.1 SAN ANTONIO

San Antonio, Texas, United States

Jun 6, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

Run for Breast Cancer 5K/10K/13.1 SAN ANTONIO

San Antonio, Texas, United States

Jun 6, 2026 (Sat) – Dec 12, 2026

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Running through the Decades Half Marathon - San Antonio

San Antonio, Texas, United States

May 31, 2026 (Sun)

Running

1.6K 5K 10.5K Half-Marathon +2

American Hero 25K Relay & Half Marathon

San Antonio, Texas, United States

May 24, 2026 (Sun)

Running, Wheelchair

Half-Marathon 25K 5K 10K +3

Memorial Day Run 5K/10K/13.1 SAN ANTONIO

San Antonio, Texas, United States

May 23, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

Hometown Half Marathon & 5k/10k - San Antonio

San Antonio, Texas, United States

May 23, 2026 (Sat)

Running

1.6K 5K 10K Half-Marathon +1

Run for Mental Health 5K/10K/13.1 SAN ANTONIO

San Antonio, Texas, United States

May 23, 2026 (Sat) – Nov 14, 2026

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +14

Run This Mother Half Marathon, 10k, 5K

San Antonio, Texas, United States

May 10, 2026 (Sun)

Running

Half-Marathon 10K 5K +2

The Wiener Run 5K & 10K - San Antonio

San Antonio, Texas, United States

May 2, 2026 (Sat)

Running

1.6K 5K 10K Half-Marathon +1