2026 XTERRA WETSUITS Mission Bay Triathlon & San Diego 5K 2026
- Date
- Sunday, October 11, 2026
- Start time
- 6:40 AM start (Los Angeles)
- Location
- San Diego, California
- Entry fee
- From $43
- Included with entry
- Includes a shirt
Registration is open.
We earn a small commission when you register through this link, at no cost to you. Details
Official race websiteAdd to calendar: Apple or Outlook · Google
Events and entry fees
| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| Aquabike (Swim/Bike) - Sprint | – | Oct 11, 20266:40 AM | $122$129 after Sep 26, 2026 | – |
| Aquathlon (Swim-Run) - Sprint | – | Oct 11, 20266:40 AM | $122$129 after Sep 26, 2026 | – |
| Duathlon - 1 Mile Run-19K (11.6 mi) Bike-5K Run | 5K | Oct 11, 20266:40 AM | $183$193 after Sep 26, 2026 | – |
| Duathlon-Duo Racer (Challenged Only) | – | Oct 11, 20266:40 AM | $183$193 after Sep 26, 2026 | – |
| Itsy Bitsy Triathlon (Ages 7-10) | – | Oct 11, 20266:40 AM | $69$72 after Sep 26, 2026 | – |
| Mini Sprint (Ages 11+) | – | Oct 11, 20266:40 AM | $128$135 after Sep 26, 2026 | – |
| Mission Bay 5K | 5K | Oct 11, 20266:40 AM | $43$46 after Sep 26, 2026 | – |
| Triathlon-International | – | Oct 11, 20266:40 AM | $289$304 after Sep 26, 2026 | – |
| Triathlon Relay - Sprint | Relay | Oct 11, 20266:40 AM | $320$338 after Sep 26, 2026 | – |
| Triathlon-Sprint | – | Oct 11, 20266:40 AM | $183$193 after Sep 26, 2026 | – |
| Triathlon-Sprint - Duo Racer (Challenged Only) | – | Oct 11, 20266:40 AM | $183$193 after Sep 26, 2026 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
Race day planning
Entry fee schedule
- Aquabike (Swim/Bike) - Sprint and Aquathlon (Swim-Run) - Sprint: $129 until Oct 10, then $139 until Oct 11.
- Duathlon - 1 Mile Run-19K (11.6 mi) Bike-5K Run and Duathlon-Duo Racer (Challenged Only): $193 until Oct 10, then $203 until Oct 11.
- Itsy Bitsy Triathlon (Ages 7-10): $72 until Oct 10, then $82 until Oct 11.
- Mini Sprint (Ages 11+): $135 until Oct 10, then $145 until Oct 11.
Online registration closes Oct 11, 2026, unless the race fills first.
How the price compares
At $183, entry is about 395 percent above a typical 5K in California, which costs $37 right now.
What a typical finish looks like
A typical finisher at a 5K in San Diego runs 36:54, about 11:53 a mile, based on 16 races with published results. Women typically finish in 40:50 and men in 34:11.
Light and altitude
Sunrise on race morning is at about 6:48 AM, and the Aquabike (Swim/Bike) - Sprint starts at 6:40 AM. The start sits about 20 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
Start location and course
1100 W. Mission Bay Dr., San Diego, CA 92109
The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.
Typical race-day weather
Around October 11 the day usually runs from 60°F at dawn to 74°F in the afternoon, with measurable rain on about 5% of days. Cold snaps dip to 55°F and hot years reach 82°F.
Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
Race details
- Where
- 1100 W. Mission Bay Dr., San Diego, CA 92109Map
- Course
- Road
- Start elevation
- About 20 feet
- Included with entry
- T-Shirt
- Distances
- 5K, Relay
- Editions
- 2026 (Oct 11, 2026), 2025 (Oct 12, 2025), 2024 (Oct 13, 2024), 2023 (Oct 15, 2023), 2022 (Oct 9, 2022), 2021 (Oct 10, 2021)
Organize this race? Add details or a correction
Plan your race
Quick answers
- When is 2026 XTERRA WETSUITS Mission Bay Triathlon & San Diego 5K?
- Sunday, October 11, 2026, starting at 6:40 AM.
- How much does it cost?
- Entry starts at $43 before processing fees.
- When does registration close?
- Online registration closes Oct 11, 2026, unless the race fills first.
- Is the entry fee high for California?
- At $183, entry is about 395 percent above a typical 5K in California, which costs $37 right now.
- Do runners get a shirt or medal?
- Entry includes a shirt, according to the race's registration page. Check it for sizes and whether kids' races get the same.
- What distances can I run?
- 5K, Relay.
- Where does it start?
- 1100 W. Mission Bay Dr., San Diego, CA 92109.
From the organizers
Mark your calendars for event #3 of the San Diego Triathlon Series & the Triple Crown of Triathlon
📅 Sunday, October 11, 2026
📍 San Diego, CA – Mission Bay
Proud Host of the 2026 USAT State Championships 🏆
The XTERRA WETSUITS Mission Bay Triathlon is proud to once again host the 2026 USA Triathlon State Championships — featuring Age Group, High School, and Club Championships!
Olympic Distance / Sprint Distance / Duathlon / Aquabike / Aquathlon
What This Means for Racers:
🥇 State Champion Titles
Compete for the honor of being crowned California State Champion in your triathlon division (Sprint or International), as well as in High School and Club categories. Olympic Distance / Sprint Distance