all races
South Bay 24 & South Bay Mini
by Endurance Race Series (ERS)
ultraFriday, July 24, 2026
Montgomery-Waller Community Park
3020 Coronado Ave, San Diego, CA 92113
3020 Coronado Ave, San Diego, CA 92113
from $179
distances
24 Hour12 Hour Night12 Hour Day6 Hour Day18.3 Mile Night
The 5th annual South Bay 24 is an ultra timed loop race on a 1.22-mile mixed trail, grass, and bike path course. Starts at 7 PM Friday with 24H, 12H, and 6H options. Features a $1,500 prize purse for the first runner to reach 125 miles (103 laps).
course details
24 Hour
terrain: mixedcourse: Timed event on a 1.22-mile counter-clockwise loop through Montgomery Waller Community Park in Chula Vista, combining trail, grass, and bike path surfaces.
12 Hour Night
terrain: mixedcourse: Same 1.22-mile counter-clockwise loop at Montgomery Waller Park, run overnight starting at 7 PM Friday.
12 Hour Day
terrain: mixedcourse: Same 1.22-mile counter-clockwise loop at Montgomery Waller Park, run during daytime Saturday.
6 Hour Day
terrain: mixedcourse: Same 1.22-mile counter-clockwise loop at Montgomery Waller Park, daytime format.
18.3 Mile Night
terrain: mixedcourse: Fixed-distance night run of 15 laps (18.3 miles) on the 1.22-mile counter-clockwise loop at Montgomery Waller Park.
links
start location
Montgomery-Waller Community Park · 3020 Coronado Ave, San Diego, CA 92113
tags
ultra24-hourtimedloop-coursesouth-bayprize-purse