Grapes of Wrath Triathlon, 5k & 10k logo

Grapes of Wrath Triathlon, 5k & 10k

Grapes of Wrath Triathlon, 5k & 10k is a triathlon, aquabike, duathlon, running, and swimrun race on April 25, 2027 in Delano, CA, with entry fees from $50 to $200.

Date
April 25, 2027 (217 days to go)
Price
$50–$200
Sports
TriathlonAquabikeDuathlonRunningSwimRun

From the Organizer

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


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.

About the venue:

Three miles southeast of Delano, CA, nestled in the vinyards 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 is allowed here, making this destination perfect for hot summer days. There’s also a boat dock and a launch ramp for those wishing to take to the water. But, the use is restricted to non-powered boats, so only sailboats, SUPs, and kayaks can be used on the lake.  

This fast, flat course is the perfect place to get your next PR.

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.

Events

5k Run$50
10k Run$50
Sprint Aquathlon$140
Sprint Aquabike$140
Olympic Aquabike$140
Sprint Triathlon$140
Sprint Duathlon$140
Olympic Triathlon$155
Sprint Triathlon Relay$200
Olympic Triathlon Relay$200

Typical Conditions

It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.

Typical High

78°

Typical Low

51°

Chance of Rain

9%

Based on US Climate Normals data from Delano, 5 mi from the venue.

Sunrise 6:11 AMSunset 7:38 PMDaylight 13h 27m

About Delano, CA

Population

50,835

as of 2023

City Elevation

313 ft

Nearest Airport

BFL

Meadows Field · 26 mi

Major Hub

FAT

Fresno Yosemite International Airport · 74 mi

Time Zone

Pacific Time

From Endurance Grid

A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.

Race Location

What Are You
Waiting For?

Every finish line starts with a single decision. Claim your spot at Grapes of Wrath Triathlon, 5k & 10k, put it on the calendar, and turn “someday” into a start date.

217

Days to train

Race
Grapes of Wrath Triathlon, 5k & 10k
Date
April 25, 2027

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About These Sports

This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.

Triathlon

Swim, bike, run — back to back. The sprint distance makes it far more accessible than most people think. Three sports in one race means three movements to train and race day never gets monotonous.

Aquabike

A swim followed by a bike — a triathlon without the run. Sprint and Olympic distances, often alongside a tri at the same venue.

Duathlon

Run, bike, run. The multi-sport format without the swim. Two disciplines, one race — a great bridge between running and triathlon.

Running

From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.

SwimRun

A continuous race alternating open-water swimming and running across a series of segments. Distances, format, and legs vary by event.

Frequently Asked Questions

What is the Grapes of Wrath Triathlon, 5k & 10k?
Grapes of Wrath Triathlon, 5k & 10k is a triathlon, aquabike, duathlon, running, and swimrun race held in Delano, California on April 25, 2027. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more triathlon races near you or explore our sports guides to learn what race day actually feels like.
When and where is the Grapes of Wrath Triathlon, 5k & 10k?
Sunday, April 25, 2027 in Delano, California at 32750 Woollomes Ave. Check the event page for exact start times and wave schedules.
How do I register for the Grapes of Wrath Triathlon, 5k & 10k?
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

Grapes of Wrath Triathlon, 5k & 10k

Apr 25, 2027

Register