Sunday, May 5, 2019 @ 7:30 AM
This Event Took Place Sun. May 5, 2019

Event Description

Come join the CT Trailmixers and the Southington YMCA for the fourth annual Spring Fling 600 trail ultramarathon!

The idea is simple: Run as many loops as you’d like of a roughly three-mile trail course as long as you're done within 600 minutes (10 hours). You’re not required to run ultra distance - at least 27 miles (or nine loops) - although many people will. Whether you want to try your first three-mile trail race, or go for 50 or more miles, this event is for you.

The CT Trailmixers welcome people who are new to trail running! This is a great opportunity to give it a try. We make it fun, with well-marked courses that offer a great variety of terrain and scenery. And you’ll get plenty of cheers and high-fives along the way.


YMCA Camp Sloper
1000 East St, Southington, CT 06489

Start Times / Schedule

6:00 am ET: Race-day check-in begins. Please arrive and check-in by 7:30.
7:45 am: Pre-race briefing
8:00 am: Race begins.
6:00 pm: Race ends.

Registration Fees

Online pre-registration (closes on April 30): $30 for members, $50 for non-members.
Race-day registration: $45 for members, $65 for non-members.

The race will be capped at 200 runners.


Interested in becoming a member of the CT Trailmixers? $20 a year gets you a $20 discount off the Spring Fling and many of our other races, and a discount on gear. To become a member, register at

Course Description

The course is a roughly three-mile loop with moderately rolling hills. It's run mostly on single-track wooded trails, but includes some grass and dirt road sections. Parts of the course are covered with rocks and roots, while other sections are smoother. You’ll experience a wide variety of terrain and scenery. The course will be marked with flags and ribbons.

Chip Timing

The race will be timed, and your laps will be counted, using chip timing. You can check your lap counts on a large monitor that will be on display at the start/finish area.

Only laps completed within the 600 minutes will count. If you finish your last lap and it’s past 6:00 pm, it won’t count.

The course will start and finish at the main pavilion at Camp Sloper. When you’re done with racing, please tell the volunteers so we know you’re leaving the course. You can take breaks during the day - take a nap, get a massage - and rejoin the race whenever you like.

Course Support

There will be two aid stations: One at the main pavilion start / finish area, and one about halfway along the course (roughly 1.5 miles into the three-mile loop). Runners will have access to traditional trail ultra food, such as fruit, potatoes, chips, candies, water, and Gatorade, along with plenty of baked goods because the CT Trailmixers love to bake. We’ll also have pancakes and grilled cheese available throughout the day, along with possibly a few other surprises. If you have specific nutritional needs, please bring your own stuff. You’ll be able to keep a drop bag at either aid station, as they are fairly close to each other.

You'll have access to real bathrooms, thanks to the YMCA!

Free massages will also be available all day.


All participants will get a CT Trailmixers-branded gift and a finisher’s medal upon completing their race.

Additionally, we’ll recognize the top male and female who complete the most full loops in the shortest time within 10 hours (600 minutes). If more than one runner completes the same longest distance, the winner will be the runner who finishes that distance first.

Race Proceeds

Race proceeds will go to a variety of local organizations, including the Southington YMCA and the Connecticut Forest & Parks Association. They will also go to the CT Trailmixers Shoe Scholarship Program, which gives free shoes to kids in need who want to run cross-country or track in school.


Connecticut weather in early May can be cool and rainy or sunny and warm. Ah, the joys of New England! Pay attention to the forecast.

Nearby Lodging

Holiday Inn Express Southington
120 Laning Street, Southington, CT 06489

Residence Inn Marriott Southington
778 West Street, Southington, CT 06489

About the CT Trailmixers

The CT Trailmixers are a trail running club based in central Connecticut. Our members are passionate about sharing Connecticut’s many wonderful trails with friends and visitors, and the trails at Camp Sloper offer a wide variety of beautiful terrain with varying difficulty levels. For more information on the CT Trailmixers, visit And special thanks to the Southington Community YMCA for their partnership!

Local time: 4:33 PM


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