Lace up your running shoes and embrace the spirit of St. Paddy's at the O'Niantic 5K on March 14, 2026, in the charming coastal town of Niantic, CT. This exhilarating 5K race, alongside an HMF FitKids Run for younger participants, offers a vibrant start to your spring racing season. Runners can expect typical race day conditions with highs around 46F and lows around 30F, and only a 10% chance of precipitation, making for ideal running weather.

The O'Niantic 5K boasts a reputation as a fast and flat USAT&F certified course, perfect for chasing a personal best. The route guides runners through a picturesque loop, starting on Hope Street and finishing on Methodist Street, often near Niantic Bay Bicycles. Enjoy scenic views as you pass by the quiet, off-season cottages of the Pine Grove community and experience the coastal beauty of Niantic. Aid stations will provide hydration at mile 1.5, with water available pre and post-race, and medical personnel on site for support.

What truly sets the O'Niantic 5K apart is its festive, St. Paddy's themed atmosphere and generous post-race celebration. Participants often receive custom Irish-inspired swag, such as a reversible knit beanie or knit socks. After crossing the finish line, celebrate your accomplishment with fresh food, including Irish-inspired donuts, and for those 21 and over, an ice-cold craft beer. The O'Niantic 5K is also part of the Hartford Marathon Foundation's "Lucky Challenge" series, offering an opportunity for runners to earn extra bling by completing multiple "O'races" across Connecticut. With a course limit of 1 hour and 20 minutes, walkers are warmly welcomed to join in the fun.