⚠️ 2027 edition: provisional information
The date is estimated from the 2026 edition (May 25, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.
Available distances
About
The Oh Boy 5K is a 5K (3.1 miles) in Waterbury, Connecticut, held on May 24, 2027 with the start at 8:15 a.m. Also known as the Oh Boy 5K For US, it honors "Marathon Man," attorney Eugene L. DeFronzo.
Participants can walk or run in support of several causes, including veterans, cancer survivors and child abuse prevention. Proceeds go to child abuse prevention through the Exchange Club of Waterbury. The event offers custom awards for top finishers, along with water stations, parking and bag check.
The race is chip-timed on a certified course.
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Races nearby
Other upcoming races around Waterbury.
Southbury Turkey Trot 5K
Nov 26, 2026 · South Britain, CT · 11 mi away
3.1 mi
Roxbury Fall Classic
Nov 14, 2026 · Roxbury, CT · 13 mi away
31.1 mi · 26.2 mi · 13.1 mi
Roxbury Thanksgiving Day Charity Race
Nov 26, 2026 · Roxbury, CT · 13 mi away
3.1 mi
Roxbury Road Race Series #2
Mar 13, 2027 · Roxbury, CT · 13 mi away
3.1 mi
Roxbury Road Race Series #3
Mar 20, 2027 · Roxbury, CT · 13 mi away
3.1 mi
Roxbury Road Race Series #4
Mar 27, 2027 · Roxbury, CT · 13 mi away
3.5 mi