3 mile, 6 mile, 9 mile, Half Marathon
Dec. 5 - Dec. 15th

Run Virtually and find a trail near you!!

For 2020 we will be switching to an all Virtual event. We'll be doing a kick off on December 5th to get you warmed up and ready for your virtual trail run. Can't join us on December 5th? No worries, you'll have 10 days to complete your event starting on Saturday, December 5th! Race packets will be mailed out the first week of December.

Print out and personalize a color or black and white digital Bib Number





HOW DOES A VIRTUAL EVENT WORK? The virtual event gives you the freedom to choose how, when and where you want to complete the run. You can break up the distance over multiple days or do it all at once. You can run along the route in San Francisco or run from your home... it's all good and it's all up to you! Plus, you choose the distance that best motivates you!!


We're inviting the entire Mermaid Community to join as we inspire, encourage and motivate each other to stay healthy!


Virtual Race Update

Covid19 Update


Half Marathon - [Interactive Map]
9 mile - [Interactive Map] [Online map] [pdf]
6 mile - [Interactive Map] [map] [pdf]
3 mile - [Interactive Map] [map] [pdf]
mermaid dash - [map] [pdf]


2020 Virtual Pricing
Virtual 3 mile: $44.00

Virtual 6 mile: $44.00

Virtual 9 mile: $44.00

Virtual Half Marathon: $44.00

Virtual Dash: $15.00

Before 6/30/2020 
3 mi: $35

6 mi: $45
9 mi: $55

Half Marathon: $65

7/1/2020 - 9/30/2020
3 mi: $40

6 mi: $50
9 mi: $60
Half Marathon: $70

10/1/2020 - 12/4/2020 

3 mi: $45
6 mi: $55

9 mi: $65
Half Marathon: $75

Mermaid Dash girls run
Online - $15
Race Day - $20

*Entry fee does NOT include a t-shirt. 

$40 (before 7/1), $45 (after 7/1)

**If you register after 11/30, your packet will be mailed after the race.

3 mi: $50
6 mi: $60
9 mi: $70
Half Marathon: $80


We are happy to issue you a credit toward a future Mermaid Series event. To receive a credit, please email us at info@mermaidseries.com 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.

Race packets (Shirt, Medal & Necklace) will be mailed out the first week of December.

Saturday RACE-DAY packet pickup : 
Location: Huddart Park, 1100 Kings Mountain Road, Woodside, CA
Time: 8:00 a.m. to 9:45 a.m.
You must have a photo i.d. in order to pick up your packet

This event is now virtual

PLEASE BRING $6 CASH (EXACT CHANGE APPRECIATED) There is limited parking at the venue in Huddart Park. We encourage all participants to carpool to the event. NOTE: THERE IS NO PARKING ON KINGS MOUNTAIN ROAD OR ALONG THE MAIN ROAD ENTERING THE PARK. 

Parking Map


FAQ - For The In Person EVENT (FAQ does not apply to the virtual event)


Is the course hilly?

YES! There are some big hills, but without the hills you wouldn't get the fabulous downhill finish.... Enjoy them, embrace them, curse them, but rest assured they'll be on the course. There are some steep hills so plan on hiking or walking the big ones and then you enjoy the wind in your hair as you blaze downhill for your epic finish. 

Is there is a time limit?

There is no cut-off for the 3 mile and 6 mile run. For the Sirena 13.1 mile and the 9 mile run, you will need to keep a 25 min/mile pace.

We will need you to hit the third aid station (Summit and Skyline Trails) by 11:30 am in order to continue.


Do you have aid stations? What kind of liquid/food is on the race course?

Yes, we have plenty of aid stations. Water, Ultima Replenisher electrolyte drink, and Luna bars are available at aid stations along the course.  We strongly suggest that you carry at least 20 OZs of water at all times.


Can I run with a baby stroller?

Unfortunately, the trails are NOT suitable for baby strollers. 


Do you have prizes for winners?
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. Age groups are based in 10 year increments. You must be present at the awards ceremony to pick up your award.  Awards will not be mailed out.


Packet Pickup - Registration 

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. 


What time should we be there on race day?
Packet pick up opens at 8:00 a.m. We recommend you get there at that time to get your packet and get ready for the race.

How soon does one need to register for the event?
The earlier, the better. Registration 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.  Please email us at info@mermaidseries.com if you can not race to inquire about a credit.


How do I know you received my entry?

You should have received an email confirmation from our registration system. If you can’t find it, you can email us at info@mermaidseries.com. 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 info@mermaidseries.com 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.




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


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



Are men allowed to compete in a Mermaid event?
Yes! Men can register and participate. However, since Mermaid is primarily a women’s event (about 97-98% of participants are women), men are not eligible for awards.

Do I have to wear my paper, race number?

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.


2019 - Results
2018 - Results
2017 - Results

2016 - Results


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

2019 photos

2018 photos

2017 photos

2016 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.