# San Diego 100 2027: registration status, dates and how to enter

Not right now. San Diego 100 2027 is not taking entries as of 2026-10-27; the status has read registration closed since at least 2026-10-27; registration opens 2027-01-01, race day 2027-04-30.

- Organiser: San Diego 100
- Sport: ultra
- Where: Julian, US
- Site: https://sandiego100.com/
- Registration page: https://sandiego100.com/
- Race day: 2027-04-30
- Registration status: registration closed (checked 2026-10-27)
- Entry route: first-come
- Registration window: 2027-01-01 to ?
- Places, as stated: registration will remain open until the race has 300 entrants

25th annual, starts Friday April 30th, 2027 at 0600 in the Cuyamaca/Laguna mountains; Western States qualifier; first-come, first-served.

## Quick answers

**Is San Diego 100 2027 registration open?**

Not right now. San Diego 100 2027 is not taking entries as of 2026-10-27; the status has read registration closed since at least 2026-10-27; registration opens 2027-01-01, race day 2027-04-30.

**How do you get a place in San Diego 100 2027?**

Entries are first come, first served. 25th annual, starts Friday April 30th, 2027 at 0600 in the Cuyamaca/Laguna mountains; Western States qualifier; first-come, first-served.

**How many places does San Diego 100 2027 have?**

As stated: registration will remain open until the race has 300 entrants.

**How can I be alerted when San Diego 100 2027 registration changes?**

Race Entry Watch reads San Diego 100 2027's registration page every night, hourly in the week before a stated opening date and every ten minutes on the day itself, and records the sentences about entries that appear on it. A free weekly digest is on this page; the same-day email, the moment it opens, closes or sells out, is 4 USD a month or a 30-day pass for 5 USD at https://bikoosh.com/races/san-diego-100.

## Sources

- https://sandiego100.com/ (read 2026-10-27)

## Changes

- 2026-10-27: record added

Canonical: https://bikoosh.com/races/san-diego-100
Race Entry Watch is an independent, sourced tracker, not affiliated with any organiser. Every status is read on the event's own registration page on the date shown; dates and fees are quoted as the organiser states them; an entry is yours to make on the organiser's site.