An Event Management, Timing and Consulting Company

On Your Mark Presents the

Lake Del Valle - AQUA CHALLENGE

2-Mile, 1-Mile & ½-Mile Swims

For actual dates and fees, please see the Events page (check the application for the event you are interested in).

When: Saturday, 8:30 am

Where: Livermore, CA - Lake Del Valle Regional Park Swim Beach.

Entry Fee: Race day registration is $5 additional per person. Persons choosing to compete in the ½-mile along with the 1- or 2-mile, fee is an additional $5.00. Entry fee includes T-shirt, award ceremony, refreshments and raffle.  Make check payable to
On Your Mark
P.O. Box 1199
Arnold, CA 95223-1199

Race Day Registration/Check-In: Race day registration and check-in opens at 7:00 am. Race number and T-shirt are not sent out in advance. All pre-registered participants receive their shirts prior to event start.
Race day registrants receive theirs upon completion and/or first come first served. All participants will receive a shirt.

Distances: 2-mile, 1-mile and ½-mile course. All swim courses will be marked by buoys. Courses are set via GPS and are accurate.  Water temperature will be 72+ degrees.

Start Times: ½-mile — 8:30 am; 2-mile and 1-mile swims will start at completion of the 1/2-mile. This is to accommodate participants who choose to compete in the 1/2-mile along with the 1- or 2-mile swim. 2-mile swim should be completed in 90 minutes.

Water Safety: Swim caps are mandatory. Color coded caps will be provided to all swimmers at event site. Courses will be closely monitored by Certified Lifeguards.

Awards: Non Wet Suit Division: Carved glass trophies to male and female winners in open and masters categories, all three distances. Engraved medals to top three in each age group: 10 year increments to 70 & over. Wetsuit Division awards will be engraved medals for top three overall, male and female, all three distances.

Results: Results will be posted as available. Results will be posted to  www.onyourmarkevents.com

Prizes: Donated prizes will be raffled (by bib number) after the event. You must be present to win.

Parking: Del Valle Regional Park imposes a $5 parking fee. Please be prepared. Car pooling is recommended.

Information: Call On Your Mark at 209/795-7832.  E-mail address: .