Grapes of Wrath Triathlon, 5k & 10k

Event Overview

What will you find at the Grapes of Wrath triathlon?

• Finisher's Medal:
• Event T-Shirt:
• Finishers Meal:
• Rosa Brother's Chocolate Milk:
• Free Race Photos:

Race Details

The Grapes of Wrath Triathlon is a fast and fun race in the central valley located east of Delano, CA. This event features a lake swim in Lake Woollomes, a fast and flat road bike course, and a run which is part trail and part paved finishes the race. Each athlete registered for the Grapes of Wrath Triathlon will receive a custom t-shirt, athlete goody bag, swim cap, post-race meal, and be eligible for raffle prizes and race awards three-deep in each division. Take the weekend and come up and enjoy this fun event with your family.

Venue Information

Three miles southeast of Delano, CA, nestled in the vineyards and orchards of the Central San Joaquin Valley is Lake Woollomes, a 300-acre reservoir with 4 miles of shoreline, making it a cozy location for water recreation.

• Swimming: Swimming is allowed here, making this destination perfect for hot summer days.
• Boat Access: There’s also a boat dock and a launch ramp for those wishing to take to the water.
• Restrictions: The use is restricted to non-powered boats, so only sailboats, SUPs, and kayaks can be used on the lake.
• Course Type: This fast, flat course is the perfect place to get your next PR.

Important Notes

Note: A USAT membership is required for the Triathlon, (but not the 5k/10k). If you do not have one, you can purchase one during the registration process.

Event Location

The race will take place on April 26, 2026, at 32750 Woollomes Ave, Delano, CA. For more information, visit Grapes of Wrath Triathlon.