2027 Deer Lake 5 Mile Trail Run & Kids 1 Mile Trail Run
Typically 43–58°F · some rain risk
See last 10 years
On this date: rain 4 of the last 10 years
2026
39–48°F
rain
2025
54–71°F
dry
2024
33–50°F
dry
2023
40–56°F
dry
2022
42–54°F
dry
2021
45–60°F
rain
2020
34–58°F
dry
2019
42–58°F
dry
2018
46–54°F
rain
2017
49–57°F
rain
Best months to race in Connecticut →
About this race
Come to rural Killingworth, CT to run (or hike) the Deer Lake Trail Run. Deer Lake Outdoor Center is a 501(c)(3) nonprofit organization dedicated to accessible outdoor education while protecting their more than 250 acres of green space and miles of trails. The challenging 5(ish)-mile course, involving almost 500 ft of elevation gain, traverses the property and offers many scenic views as you navigate the ever-changing elevations on well-marked trails. This is a true trail course, and the technical nature of the terrain will mean that you will be exposed to rocks, roots, possible mud, etc. There will be awards for male & female winners in each age group listed below as well as the overall male & female winners.
New for 2027! We have a 1(ish)-mile trail course for kids and the young-at-heart. Just like the 5-mile course, the 1-mile kids trail run will be timed, will include rocks, roots, and more. Awards will be given to the overall male and female winners under 12-years old. Anyone participating under 10 years of age must be accompanied by an adult along the entire racecourse. An adult accompanying a runner under 10 years of age does not need to register and may run for free unless they want their run to be timed.
T-Shirts guaranteed for those who register before March 14, 2027!
ENTRY FEES - 5 Mile Trail Run
$30 through March 14th
$35 March 15th - April 14th
$40 April 15th - April 24th
$45 on race day
ENTRY FEES - 1 Mile Trail Run
$15 through March 14th
$20 March 15th - April 14th
$25 April 15th - April 24th
$30 on race day
AWARDS - 5 Mile Trail Run
Awards will be given to the overall male and female winners and the m/f winners for each of the following age groups:
0 - 12 yrs. (Please note that anyone participating under 10 years of age must be accompanied by an adult along the entire racecourse)
13-19 yrs.
20-29 yrs.
30-39 yrs.
40-49 yrs.
50-59 yrs.
60-69 yrs.
70+ yrs.
AWARDS - 1 Mile Trail Run
Awards will be given to the m/f winners for each of the following age groups:
0 - 12 yrs. (Please note that anyone participating under 10 years of age must be accompanied by an adult along the entire racecourse)
RACE SCHEDULE
Registration closes at 8:00 am. WiFi and cellular coverage is very spotty at the race site. We recommend registering online before coming to the site.
Check-in begins at 8:00 am
5 Mile Trail Run start 9:00 am
1 Mile Trail Run start 10:30 am
OTHER
Please NO Dogs Allowed
Course map
Train with a club
Run clubs near Killingworth to train with before race day.
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