Women's Half Marathon San Diego
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Event overview
The Women's Half Marathon San Diego is scheduled for March 14, 2026, at Mission Bay in San Diego, California. The event is presented by Mermaid Series and includes multiple race options:
- Half Marathon
- 10K
- 5K
- Mermaid Dash (youth)
- Virtual Run
The course is described as flat and runs along the paved running path around Mission Bay, offering Bay views. Mermaid Dash is for children aged 6 to 12 and is open to girls and boys; Tecolote Shores North is listed as the Mermaid Dash start location. Course maps are provided for the 5K, 10K, and Half Marathon.
Registration, fees and policies
Registration fees vary by event and by registration window. Examples from the listing include: Half Marathon fees from $91.86 to $107.91; 10K fees from $70.46 to $86.51; 5K fees from $59.76 to $75.81; Virtual Run fees from $59.76 to $75.81; Mermaid Dash fees from $18.04 to $23.39. Registration includes a tech race shirt, finisher medal and necklace by default; participants may remove items to reduce the fee (No Shirt save $8, No Medal save $3, No Necklace save $3). Youth 19 and under receive a 20% age discount applied during registration.
Virtual Run registrants must register by February 23 to ensure packet delivery by race day. The event offers credits toward future Mermaid Series events if requested at least 10 days before the event; credits are valid through the following calendar year and are nontransferable. Visit the organization's website for the most recent information.
