Run Across CT

Event overview

Run Across CT 123 is a point-to-point ultramarathon on April 4, 2026. The route starts in East Thompson and finishes at the Wakeman Boys and Girls Club in Southport, crossing 25 towns and covering approximately 123 miles. Available race formats include:

• 200K Solo
• 200K relay, 6-person
• 200K relay, 3-person
• 100K Solo

Course and logistics

About 57 miles of the course run on well-maintained trails; the remainder follows backroads and local highways. Total reported ascent is about 3,842 ft and total descent about 4,455 ft. There are no shuttle services this year; arrival options mentioned include crew drop-off or parking at nearby park-and-rides. Nearby lodging is noted in Thompson and Greenwich. Participants are advised to plan for variable spring weather and carry layered, packable rain gear.

Support and cutoffs

The event uses a 32-hour overall time limit and multiple intermediate cutoffs. Five intermediate cutoffs occur at approximately mile 32.5, 55.8, 63.8, 75.9, and 100.07. The final cutoff is at approximately mile 123.2. Aid stations are staffed by volunteers and provide hydrating drinks, electrolyte options, and light snacks. Medical staff are available on course. The published target pace to meet cutoffs is about 15 minutes per mile (4 mph).

Awards and volunteering

Finishers of the 200K receive a belt buckle; finishers of the 100K and relay options receive a standard medal. All finishers receive a 2025 CT123 t-shirt and additional race swag. Volunteer shifts range from 1.5 to 3 hours and include aid station staffing, course marking, checkpoint management, and start/finish logistics; volunteers receive race swag and food. Visit the organization's website for the most recent information.