The Bullfrog Splashdown
- Date
- June 14, 2026
- Location
- 7306 W Bowles Ave, Littleton, CO
- Distance
- 10k Run · 5K Run · Bullfrog Hot Lap & more
From the Organizer
Run the Race. Stay for the Party.
Events
Weather
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
81°
Typical Low
53°
Chance of Rain
27%
Based on US Climate Normals data from Marston Fltr Plt, 5 mi from the venue.
Host City
About Littleton, CO
Population
45,092
as of 2023
Elevation
5,445 ft
Nearest Airport
BJC
Rocky Mountain Metropolitan Airport · 24 mi
Major Hub
DEN
Denver International Airport · 28 mi
Time Zone
Mountain Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at The Bullfrog Splashdown, put it on the calendar, and turn “someday” into a start date.
Coming Up
More Running races near Littleton, CO
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Less than a mile away
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5K
Less than a mile away
Cade’s Cause: Concussion & CTE Awareness Run/Walk
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From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is The Bullfrog Splashdown?
- The Bullfrog Splashdown is a running race held in Littleton, Colorado on June 14, 2026. 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 running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is The Bullfrog Splashdown?
- Sunday, June 14, 2026 in Littleton, Colorado at 7306 W Bowles Ave, Littleton, CO. Check the event page for exact start times and wave schedules.
- How do I register for The Bullfrog Splashdown?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
The Bullfrog Splashdown
Jun 14, 2026