Race Discovery
Grapes of Wrath Triathlon, 5k & 10k
Grapes of Wrath Triathlon, 5k & 10k logo

Grapes of Wrath Triathlon, 5k & 10k

Delano, California, United States View on map
Apr 25, 2027 (America/Los_Angeles local time)
Running

About this race

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.

Pick your distance

Triathlon

Sprint Triathlon

Sprint Triathlon- 800 yard swim | 10.75 mile bike | 3.1 mile run

Apr 25, 2027 26.6K 8:00 AM
$140.00
Open

Olympic Triathlon

Olympic Triathlon - 1600 yard swim | 21.5 mile bike | 6.2 mile run

Apr 25, 2027 48.1K 8:00 AM
$155.00
Open

Sprint Triathlon Relay

Apr 25, 2027 Sprint Triathlon Relay 8:00 AM
$200.00
Open

Olympic Triathlon Relay

Apr 25, 2027 Olympic Triathlon Relay 8:00 AM
$200.00
Open

Duathlon

Sprint Duathlon

Sprint Duathlon- 3.1 mile run | 10.75 mile bike | 3.1 mile run

Apr 25, 2027 Sprint Duathlon 8:00 AM
$140.00
Open

Swimrun

Sprint Aquathlon

Sprint Aquathon- 800yard swim | 3.1 mile run

Apr 25, 2027 Sprint Aquathlon 8:00 AM
$140.00
Open

Aquabike

Sprint Aquabike

Sprint Aquabike- 800 yard swim | 10.75 mile bike

Apr 25, 2027 Sprint Aquabike 8:00 AM
$140.00
Open

Olympic Aquabike

Olympic Triathlon - 1600 yard swim | 21.5 mile bike

Apr 25, 2027 Olympic Aquabike 8:00 AM
$140.00
Open

Running

10k Run

Apr 25, 2027 10K 8:00 AM
$50.00
Open

5k Run

Apr 25, 2027 5K 8:00 AM
$50.00
Open

Virtual Triathlon

Worried about social distancing? Swim 800 yards, bike 10.5 miles, and run 3.1 miles by August 30th to complete the Grapes of Wrath Triathlon as a virtual race.

Apr 25, 2027 Virtual Triathlon 8:00 AM
$75.00
Open

Virtual Duathlon

Worried about social distancing? Run 3.1 miles, bike 10.5 miles, and run 3.1 miles by April 30th to complete the Grapes of Wrath Triathlon as a virtual race.

Apr 25, 2027 Virtual Duathlon 8:00 AM
$75.00
Open

Virtual Aquathlon

Worried about social distancing? Swim 800 yards and run 3.1 miles by July 26th to complete the Grapes of Wrath Triathlon as a virtual race.

Apr 25, 2027 Virtual Aquathlon 8:00 AM
$75.00
Open

Virtual 5k

Worried about social distancing? Run 3.1 miles by July 26th to complete the Grapes of Wrath 5K as a virtual race.

Apr 25, 2027 5K 8:00 AM
$50.00
Open

Virtual 10k

Worried about social distancing? Run 6.1 miles by July 26th to complete the Grapes of Wrath 10K as a virtual race.

Apr 25, 2027 10K 8:00 AM
$50.00
Open

Typical race-day weather

Based on 6 years of Open-Meteo archive data for this event's race dates in Delano, plus the 3 days either side.

Temp (°C)
Minimum temperature (race-week average) 12.5° / Maximum temperature (race-week average) 26.7°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-week average) 12.2° / Maximum feels like — heat index / wind chill (race-week average) 26.7°
Peak wind (km/h)
Strongest wind of the day (race-week average)
14.0
Precip (mm)
Precipitation over the day (race-week average)
0.3mm
Humidity
Mean relative humidity (race-week average)
42.3%
Sunrise
Sunrise at the start line on April 25, 2027 (PDT)
Sunset
Sunset at the start line on April 25, 2027 (PDT)
Daylight
Hours between sunrise and sunset on race day
13h 27m

The sun rises at 6:11 AM and sets at 7:38 PM local time (PDT) in Delano on April 25, 2027 — 13h 27m of daylight.

Course

No course map published yet.

The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.

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Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.

  • Entries, prices, waves and inclusions — the event's official registration page
  • Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
  • Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
  • Comparisons and counts — Race Discovery calendar, 2 Delano events

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