Connecticut Marathons
6 upcoming marathons across Connecticut, updated nightly. Want radius search and maps? Open these in the Race Finder.
When to race: marathons in Connecticut
Connecticut has 6 upcoming marathons over the next 12 months. October is the busiest month for them, with 4. Most are around Ashford, Hartford, Cornwall. The next one is NipMuck Trail Marathon on October 4 in Ashford.
- Oct 20264 races
- Nov 20262 races
October 2026
- Sun 10/4NipMuck Trail MarathonAshford, CT · Marathon · Trail · register ↗
- Sat 10/10Eversource Hartford Marathon, Half Marathon, Relay & Charity 5KHartford, CT · Marathon · Half Marathon · 5K · registration closed · register ↗
- Sun 10/11Mohawk Mountain RaceCornwall, CT · Marathon · Half Marathon · 10K · 5K · Trail · register ↗
- Sat 10/17Tackle the Trail (TM)Northeast, CT · Marathon · Half Marathon · 10K · Trail · from $45 · register ↗
November 2026
- Sat 11/14Roxbury Fall ClassicRoxbury, CT · Half Marathon · Marathon · 50K · from $50 · register ↗
- Sun 11/15Tarrywile Half MarathonDanbury, CT · Marathon · Half Marathon · 10K · register ↗
Planning a race
- Boston qualifying timesthe BQ standard for every age group, and what the cutoff has really been
- Choosing a first marathonwhat to look for in a debut race, and what to avoid
More Connecticut: 5K Races · 10K Races · Ultras · All Connecticut races · Browse by state