Run Across CT
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Run Across CT 123
Run Across CT 123 is a point-to-point ultramarathon across Connecticut. The course spans 123 miles from East Thompson to the Wakeman Boys & Girls Club in Southport and passes through 25 towns. Nearly half the route (about 57 miles) follows well-maintained trails; the remainder uses scenic backroads, bike paths, and local highways. Total ascent is approximately 4,000 ft with about 4,500 ft of descent.
The event includes multiple entry formats:
- 123 miles point to point
- Solo 200K
- Solo 100K
- 200K relay, 3-person
- 200K relay, 6-person
There is a 36 hour overall cutoff and five intermediate cutoffs along the course; maintaining about a 17.5 minute per mile pace (3.5 mph) is required to remain ahead of the cutoffs. Aid stations are staffed by volunteers and provide hydrating drinks, electrolyte replenishment, and light snacks; staff attend to common ultramarathon conditions such as blisters and fatigue. Shuttle services are to be determined; nearby lodging at the start line in Putnam, CT, and park-and-ride options are noted for travel logistics.
Finishers of the 200K receive a belt buckle; 100K and 200K relay finishers receive a standard medal. All finishers receive a 2025 CT123 t-shirt and additional event swag. Volunteers staff aid stations, course marking, checkpoints, and start/finish logistics and receive race credit, swag, and food. Visit the organization's website for the most recent information.
