Ultra Running Hub San Diego, CA, United States · Saturday, July 24, 2027
South Bay 24
We hold no course length for this race — a timed or backyard event is measured by the clock, not the kilometre — so there is no Grit score to give you.
What the course asks
DUV results for the 2026 edition (24h) — ranked runners only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, July
Regional 2001-2020 average for July — NASA POWER, grid elevation 394 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2026 | 24h | 74 | Emilio Sanchez · 215.491 km | Michele Perez-Lopez · 173.648 km |
| 2025 | 24h | 63 | Nathan Brown · 193.121 km | Maribel Flores · 164.958 km |
| 2024 | 24h | 59 | Nathan Brown · 179.924 km | Kathleen Loyd · 152.726 km |
| 2023 | 24h | 31 | Zerek Zimmerman · 169.463 km | Kim Elliott · 110.883 km |
| 2022 | 24h | 42 | Adrian Bagrin · 230.136 km | Maribel Flores · 182.016 km |
The field grew 17% between 2025 (63) and 2026 (74). 27% of the 2026 field were women.
DUV results for the 2026 edition (24h) — ranked runners only. Starters are not published, so the field was at least this big and no finish rate can be given.
The Aid Station
Course-specific beta from the community
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for this trail race.
- Trail Running Shoes Cushioning on trail that is still there in the last quarter.
- Race Nutrition Self-supported fuelling between aid stations.
- Hydration Vests Flask capacity without the bounce.
- Headlamps A 24 h limit puts you out there after dark.
- GPS Watches Battery life first — an ultra outlasts most full-GPS modes.
Similar races
Other trail ultras of the same format.