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Sunday, September 17, 2023

Race Info

Celebrating 15 Years of Running In San Francisco!


10 Mile: Cross the GOLDEN GATE BRIDGE with the Sirena10 Mile course! Guaranteed to get the best of the BEST views of San Francisco. After crossing the bridge on the Pacific side you'll return on the bay side for stunning views of the San Francisco skyline.

10K: The 10K course goes up and into the Presidio for where you'll soak in views of the bay and the Pacific Ocean. Run underneath the Golden Gate Bridge and pass by the historic Fort Point before heading to the finish. 

5K: Flat, yes totally flat... the 5K is great for joggers, walkers and runners looking for the picturesque views without the hills. 

** VIRTUAL **: We also offer a virtual challenge for anyone who can't attend in person. Participants will be able to chose their favorite distance or compete virtually in all distances over the course of a month.


Mermaids ALWAYS receive a stylish race shirt, finisher necklace, and medal.

Updates sent the week of the event.

2022 Race Update #1 (Download a PDF of Race Update #1 & #2)

2022 Race Update #2


7:00 am - Sirena10 Mile
7:30 am - 10K
8:00 am - 5K
mermaid dash: 9:55 a.m.  (Ages 9-12)
mermaid dash: 10:00 a.m.  (Ages 6-8)
* Start time subject to change


5k: Map [Download PDF]
Map [Download PDF]
Map [Download PDF]
Mermaid dash:
Map [Download PDF]



The Mermaid Dash is a great way to introduce girls to the world of running. The fun run/walk allows girls to participate and experience the joy of crossing the finish line in a safe and supportive environment. Mermaid Dashers receive a medal, finisher necklace and post race food. Note: The dash entry fee does not come with a race shirt. We do sell youth shirts at the Mermaid Series Apparel Booth. The entry fee is $15.00 in advance or $20 on Race Weekend.


Parents are encouraged to let Mermaid Dashers run on their own, however a parent or guardian is welcome to run alongside young or shy Mermaid Dashers.

Entry fees

We offer FREE race credits for those who volunteer a shift at any of our events. To find out more about our volunteer opportunities please email:

Entry fees are listed on the Race Roster registration page. Youth receive 20% off the current registration price for the 5K, 10K and Sirena10 Mile.

Mermaid Youth Dash is $15.00 online or $20.00 at the event. Dash entry includes a medal and necklace. Dash entry does NOT include a shirt.


We are happy to issue you a credit toward a future Mermaid Series event. To receive a credit, please email us at a minimum of 10 days before the event date. We will email you back a confirmation along with the amount of your future race credit. Please keep the confirmation email for your records.


Our event credit and event cancellation policy is outlined on the event "Participant Waiver" which is agreed upon when you registered:

Mermaid Series (pdf) Wavier


The following credits will be issued: 

• Duathlon - Entry fee minus $10 processing fee
• Triathlons - Entry fee minus $10 processing fee
• Run - Entry fee minus $10 processing fee.

Packet pickup


MAIL MY PACKET - $15 (Race Bib AND Shirt)
During registration you can select to have your bib and shirt mailed to you. 

** If you decide to add the Mail My Packet option after you register **
Follow the steps below to purchase this option:
1. Click: Mail My Packet - $15
2. Enter your confirmation number: ex. 122811543.
Add the Mail My Packet option to your registration

When: Packets will be mailed out the week before the evnet

Where: Packets will be mailed to the shipping address you listed

when you registered

FRIDAY Packet Pickup

When:  TBD

Where: TBD


SATURDAY Packet Pickup
When: 10:00 a.m. to 5:00 p.m.
Where: Crissy Field - The Presidio
**Packets will NOT be available prior to 11:00 a.m.
Athletes must bring a photo ID


SUNDAY (Race Morning) Packet Pickup

When: 6:00 a.m. to 8:00 a.m.

Where: Crissy Field - The Presidio

**Athletes must bring a photo ID in order to pick up their packet.
Parking & Expo Map (See below for Parking Details)



The Start, Finish and Expo are on the west side of Crissy Field. The best address to google for directions is: 920 Old Mason Street, San Francisco. There is a small parking lot at 920 Old Mason Street that will be used as a DROP OFF ONLY area the morning of the race. There is NO STOPPING and dropping off on Old Mason Street. See the Parking & Expo Map for an overview of Crissy Field, the Presidio and the parking lots. NOTE: Old Mason Street is closed west of Crissy Field Ave. You will need to park to the EAST of Old Mason Street and Crissy Field Ave.


Parking in San Francisco is always a challenge and car break-ins are at an all time high. DO NOT LEAVE valuables in your car. We recommend you arrive a minimum of 60 minutes prior to your race start to allow for extra time to park. Here is a Google Map with Parking Lot Locations. You can click on the parking locations to get directions to the specific lot. There are several lots where there is FREE parking. The free parking is on a first come, first served basis. There are lots of pay parking lots located in the Presidio.  NOTE: If you are arriving prior to 6:30am we recommend first trying the East Beach Parking Lot, if it is full our parking volunteers will direct you into the Presidio to use the pay lots.


Free Parking - East Beach & Little Marina Green
East Beach Parking Lot: There are approximately 200 spots. It is roughly a .75 mile walk to the Start/Finish Location.
Little Marina Green: There are approximately 130 spots. It is roughly a .75 mile walk to the Start/Finish Location.
Marina Green: The Marina Green is over 2 miles away. We recommend this as a very last resort for FREE parking. It has approximately 450 spots.


Presidio Parking - Pay ($) <Google Map>:
There are several parking lots within the Presidio that are less than a 1 mile walk to the East Beach Parking Lot. To enter the Presidio, enter from the west on either Marina Blvd, Lombard St or Gorgas Ave. Parking is $1.90 per hour or $9.50 for all day. Pay kiosks accept credit cards. Below is a list of parking lots based on distance to the start/finish.
Old Mason Street (limited spaces - No parking in the Sports Basement spaces) 30 spaces
Main Post (122 Anza Ave) 200+ spots
Main Post (38 Keys Ave) 60 spots
Lundeen Parking Lot 200 spots (Next to East Beach Parking Lot)
Presidio (Birmingham Lot) 35 spots
Presidio (1063 Kendall Drive) 30 spots
Presidio (1040 Edie Road) 70 spots





What do I need to bring to packet pick-up/registration?
Bring your PHOTO IDENTIFICATION (ID) or a copy of your ID in order to receive your packet. A valid driver’s license or a valid passport is best. Minors are not required to show a photo ID. 


Can I pick up my friend’s packet for them?
Yes! Bring a copy of their photo ID and we’ll give you their packet. Either a paper copy or digital image on a smartphone works.


Are we required to pick up our packets before race day?
No, but we strongly recommend that you do. This allows you to relax instead of waiting in a packet pickup line on race day morning.


What time should we be there on race day?
Check-in opens at 6:00 a.m. We recommend that you arrive to the venue at least 60 minutes before your start time. If you didn’t pick up your packet before race day, you may want to give yourself even more time.


When should I register for the event?
The earlier, the better. Race entry prices increase, as the event date gets closer. 


If the event closes, will there be a waiting list?



If I cannot race, can I give someone else my race number?

No. Race entries are non-transferable.  


How do I know if I’m registered?

You should have received an email confirmation from the registration software. If you can’t find it, you can email us at We will verify your participation from our registration list.

Can I get a refund?

Unfortunately, there are no refunds. However, we do have an awesome cancelation policy. Email us at at least 10 days prior to the event and we’ll give you a credit toward a future race. The credit amount is your entry fee minus a $10 processing fee. 



How many miles is 5K? 10K? and what is the Sirena10?
The 5K is 3.1 miles and the 10K is 6.2 miles. The Sirena10 (Sirena is Spanish for Mermaid) is our 10 mile distance.  


Is the Mermaid Run hilly?

It depends on the distance you are running. The 5k is on a very flat course. The new 10k course is hilly, but the view of the Bay is spectacular. The Sirena10 mile course is hilly, but the view from the Golden Gate Bridge is even more spectacular and totally worth it.  


Is there is a time limit?

It depends on the distance you are running. The 5k and 10k distances do not have a time limit. There is a time limit on the Sirena10. The Sirena10 mile participants must keep a 18 minute per mile pace or faster to complete the course in the allotted time. 


Do you have aid stations?

What kind of liquid/food is on the racecourse?

Yes, we have plenty of aid stations. Water, Ultima Replenisher electrolyte drink, and LUNA bars are available at aid stations along the course.  Due to strict park rules, we are NOT allowed to serve Gel on the course.  You are welcome to carry your own gel, but PLEASE only dispose of the gel wrapper at an Aid Station.  Help keep our parks clean and happy!  


Can I run with a baby stroller?

It depends on the distance you are running. You can run with a baby stroller on the 5k or 10k course. However, please start towards the back of the pack at the start line. Strollers are NOT allowed on the Sirena10 mile course due to the steep hills and restrictions on the Golden Gate Bridge. 



I belong to a club or organization. Do you offer group discounts?
Yes! Have your club president or representative email us at to get the discount code.


How many people do I need in my group to be eligible for a group discount code?
6 or more.




Can I run with my daughter in the Mermaid Dash?
Yes! Although we encourage parents to let their daughters experience the run for themselves, the younger girls are often accompanied by a parent. Parents do not need to register for the dash.



Do you have awards?
Yes! We will have an awards ceremony at the expo. Awards are given to the 1st, 2nd, and 3rd place overall winners for each distance and 1st, 2nd, and 3rd place winners of each age group. You MUST be present at the awards ceremony to pick up your award.  Awards will NOT be mailed out.


What are the Age Groups?

Mermaid Age Groups are currently 10 and under, 11-14 15-17, 18-19, 20-24, 25-29, etc. Age groups from age 20 and over are separated by 5 year increments. 


Do I have to wear my race bib?

Yes, you are required to run with your bib number. This is used for timing, identification, and race photos. 


I heard this event uses Chip Timing. What is Chip Timing?
Chip timing allows us to record your time using a computer and gives the most accurate results. Your timing chip is attached to your bib.


If you have additional questions, please email:
Results and photos
2022 - Results
2021 - Results
2020 - Virtual Results
2019 - Results
2017 - Results

2016 - Results

2015 - Results

2014 - Results


5k Overall 10k OverallSirena10 Overall

5K Overall 10K Overall

5K - Age Group | Overall

10K - Age Group | Overall


5k - Age Group | Overall
10K - Age Group | Overall

10K - Age Group | Overall | Searchable

5K - Age Group | Overall | Searchable 


Photos will be available approximately one to two weeks following the event.

2022 Photos
2021 Photos

2019 Photos

2017 Photos

2016 Photos

2015 Photos

2014 Photos

2013 photos

2012 photos

Event photography by: Facchino Photography specializes in off-road event photography. Capturing athletes in their moment and allowing them flexibility in viewing and ordering convenience. 

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