# 5K Races in Marlborough, CT (2026)

> 3 upcoming 5K races in Marlborough, Connecticut.

- **Page:** https://runthis.run/races/connecticut/marlborough/5k

## Races

- **[Central CT Open Water Swim](https://runthis.run/event/rs-191759-central-ct-open-water-swim)** — Sun, Sep 27, 2026 · 12:00 AM UTC · Marlborough, CT · 5K
- **[Masquerade 5K](https://runthis.run/event/rs-185014-masquerade-5k)** — Sun, Oct 25, 2026 · 12:00 AM UTC · Marlborough, CT · 5K
- **[Marlborough Lions Club Round The Lake 5K](https://runthis.run/event/rs-179617-marlborough-lions-club-round-the-lake-5k)** — Sun, May 30, 2027 · 12:00 AM UTC · Marlborough, CT · 5K

## Nearby

- [All races in Marlborough, CT](https://runthis.run/races/connecticut/marlborough.md)
- [5K races in Connecticut](https://runthis.run/races/connecticut/5k.md)

---

Source: [https://runthis.run/races/connecticut/marlborough/5k](https://runthis.run/races/connecticut/marlborough/5k) — data from Run This (runthis.run).