Boulderthon
Boulderthon returns to downtown Boulder on Sunday September 27, 2026, with a marathon, half marathon, 10K, the Heart to Heart 5K and a Kids Run. The Start Village opens at […]
RRTC Men’s 3.0 NTRP Doubles One Day
A single-day USTA Level 7 doubles tournament at Randy Ross Tennis Center in Englewood on Saturday September 26, 2026, with one division: men’s 3.0 doubles. Registration closes September 22. Part […]
Colorado Tennis Championships
The Colorado Tennis Championships is a USTA Level 4 Open, the highest-level adult event on this list, played over ten days from Friday September 25 through Sunday October 4, 2026 […]
2026 North Lake Invitational
The Loveland Tennis Association’s North Lake Invitational runs Wednesday September 23 through Sunday September 27, 2026 at the North Lake Park tennis courts, behind Loveland High School. It is a […]
RRTC Women’s 3.0 NTRP Doubles One Day
A single-day USTA Level 7 doubles tournament at Randy Ross Tennis Center in Englewood on Monday September 21, 2026, with one division: women’s 3.0 doubles. Registration closes September 17. Part […]
Citywide Sports Summer Series #3
Denver Parks and Recreation runs the third instalment of its Citywide Sports Summer Series at the Berkeley Park tennis courts, Wednesday September 16 through Sunday September 20, 2026. This USTA […]
RRTC Women’s 2.5 NTRP Doubles One Day
A single-day USTA Level 7 tournament at Randy Ross Tennis Center in Englewood on Monday September 14, 2026, with one division: NTRP 2.5 women’s 18 and over doubles. One-day formats […]
HRCA Fall Adult Classic Tournament
The HRCA Fall Adult Classic is a USTA Level 6 doubles tournament hosted by the Highlands Ranch Community Association, played Friday September 11 through Sunday September 13, 2026 across the […]
Memorial Park Fall Classic
The Memorial Park Fall Classic is a USTA Level 5 Open tournament at Memorial Park Tennis Center in Colorado Springs, running Friday September 11 through Sunday September 13, 2026. Seventeen […]
17th Annual Gil A. Padilla Memorial Glow Golf Tournament
The 17th Annual Gil A. Padilla Memorial Glow Golf Tournament returns to Elmwood Golf Course in Pueblo on Saturday, September 12, 2026, with check in at 3:00 PM and a […]