FINIS Z2 Zoomer
Buy FINIS Swimming Gear
The Worldwide Leader in
Technical Swimming Development

Club Assistant Registration Services


FINIS Z2 Zoomer
Streaming Video
Where Swimming Comes Alive!

Club Assistant Proudly Supports


Adult Swimming for
Health, Fitness and Exercise

Masters Swimming Canada (MSC)
Better swimming for all adults

Masters Swimming Australia (MSA)
Fitness, Friendship & Fun

This event is over.  Here is the next event in this series:

Saturday, June 9, 2018 - 2018 Del Valle Open Water Festival (USA Swimming)

2017 Del Valle Open Water Festival (USA Swimming)

Saturday, June 10 - Sunday, June 11, 2017

Tri Valley Masters Swimming

Open Water Registration

Registration Schedule

It is now 8:29 AM PT on Monday, April 23, 2018.
Open Close
Swimmer Registration Fri, March 17, 2017 05:00 PM PT Thu, June 8, 2017 11:59 PM PT

USAS/Youth Registration Page - Masters Swimmers (adults) register here

Saturday, June 10, 2017 Del Valle 5k/10k Open Water Swims

Sunday, June 11, 2017 Del Valle 1.2k & 2.5k Open Water Swims

Event Information:  Del Valle Open Water Festival

5km/10km combined race participant entries limited to 350 total swimmers.
Online and race day registration will be closed when this limit is met.  
Online processing fee of $5.00 waived on all online entries prior to 11:59PM on 5/10/2017.
Online registration for the 10K closes 11:59PM on 5/27/2017
Online registration for the 1.2K, 2.5K and 5K closes 11:59pm on 6/8/2017 or when max capacity (350 Saturday/600 Sunday) is reached.


Online event registrations are paid by credit card to " Events".

Contact Information Race Director: Bill McCracken,, (925) 216-7918

Please note: If paying by credit card, your credit card statement will reflect a charge from " Events."
Online Registration closed on 6/8/2017.
Current Weather
Map and Directions