League Calendar – Mountains Area
2026 Season: Calendar, Deadlines, Days of Play
Summary Calendar
| League | Minimum Roster Deadline | Season Starts | Season Ends | Score Entry Deadline | District Championships |
|---|---|---|---|---|---|
| USTA Mixed 18 & Over | April 3 | April 16 | May 24 | May 25 | June 5-7 |
| USTA Adult 18 & Over | April 17 | May 4 | June 10 | June 11 | June 19-21 * |
| USTA Adult 55 & Over | May 4 **March 27 | May 19 | June 25 | June 26 | July 10-12 |
| CTA Women’s Daytime Doubles | May 15 | May 29 | July 26 | July 27 | N/A |
| USTA Adult 40 & Over | June 5 | June 22 | July 27 | July 29 | August 14-16 * |
| CTA Adult 18-39 | June 5 | June 22 | August 12 | August 16 | N/A |
| CTA Women’s 2.5 (18 & Over) | June 5 | June 22 | July 27 | July 29 | N/A |
| ITA Mixed | June 5 | June 25 | August 23 | August 30 | September 18-20 |
| USTA Tri-Level | June 30 | July 14 | August 25 | August 27 | September 18-20 |
| USTA Adult 65 & Over | July 3 **May 23 | July 20 | August 27 | August 28 | September 8-10 |
| CTA Women’s Summer Daytime | July 31 | August 14 | September 25 | September 28 | N/A |
| CTA Twilight | July 24 | August 10 | September 30 | October 5 | N/A |
Calendar Notes
* USTA Adult 18 & Over / USTA Adult 40 & Over: Regular season winners and any wildcard teams may advance to a single elimination Flight Playoff prior to Districts. If only one flight exists within an Area and NTRP level, the winning team advances straight to Districts.
** Any level that plays a local league against teams from other areas must register by the earlier date listed. This typically only applies for the Women’s 8.0 or 9.0 level.
Deadlines and Important Dates by League
USTA Mixed 18 & Over
| Minimum Roster Deadline | Season Starts | Season Ends | Score Entry Deadline | District Championships |
| April 3 | April 16 | May 24 | May 25 | June 5-7 |
| Registration Opens: | March 1 |
| USTA Colorado League Fee: | $33 (+$3.15 active.com fee) |
| Minimum Roster Deadline: | April 3 |
| Minimum # of Players on Roster: | 6 Players |
| Match Schedules Available: | April 9 |
| Season Starts: | April 16 |
| Season Ends: | May 24 |
| Player Deletion Deadline: | May 18 |
| Score Entry Deadline: | May 25 by 11:59pm |
| District Schedules Available: | May 29 by 6:00pm |
| District Championships: | June 5-7 |
| Sectional Championships: | More Info |
| National Championships: | More Info |
| USTA Mixed 18 & Over League Details: | League Info |
USTA Adult 18 & Over
| Minimum Roster Deadline | Season Starts | Season Ends | Score Entry Deadline | District Championships |
| April 17 | May 4 | June 10 | June 11 | June 19-21 |
| Registration Opens: | March 1 |
| USTA Colorado League Fee: | $33 (+$3.15 active.com fee) |
| Minimum Roster Deadline: | April 17 |
| Minimum # of Players on Roster: | 8 Players: NTRP 3.0 – 4.5 (75% In-Level Rule) 5 Players: NTRP 2.5, 5.0 5 Players: 5.0 & Above (non-advancing) |
| Match Schedules Available: | April 27 |
| Season Starts: | May 4 |
| Season Ends: | June 10 |
| Player Deletion Deadline: | May 29 |
| Score Entry Deadline: | June 11 by 11:59pm |
| Flight Playoff Schedules Available (if applicable): | June 5 by 6:00pm |
| Flight Playoffs (if applicable): | June 13 |
| Flight Playoff Match Times by Level (if applicable): | 10am: M 3.0, M 3.5, M 4.0 1pm: W 2.5, W 3.0, W 4.0, W 5.0 3pm: W 3.5, W 4.5, M 4.5, M 5.0 |
| Flight Playoff Score Entry Deadline (if applicable): | June 14 by 11:59pm |
| District Schedules Available: | June 15 by 6:00pm |
| District Championships: | June 19-21 |
| Sectional Championships: | More Info |
| National Championships: | More Info |
| USTA Adult 18 & Over League Details: | League Info |
USTA Adult 55 & Over
| Minimum Roster Deadline | Season Starts | Season Ends | Score Entry Deadline | District Championships |
| May 4 **March 27 | May 19 | June 25 | June 26 | July 10-12 |
| Registration Opens: | April 1 |
| USTA Colorado League Fee: | $33 (+$3.15 active.com fee) |
| Minimum Roster Deadline: | May 4 **March 27 (Any level that plays a local league against teams from other areas must register by the earlier date listed.) |
| Minimum # of Players on Roster: | 6 Players |
| Match Schedules Available: | May 12 |
| Season Starts: | May 19 |
| Season Ends: | June 25 |
| Player Deletion Deadline: | June 13 |
| Score Entry Deadline: | June 26 by 11:59pm |
| District Schedules Available: | July 3 by 6:00pm |
| District Championships: | July 10-12 |
| Sectional Championships: | More Info |
| National Championships: | More Info |
| USTA Adult 55 & Over League Details: | League Info |
CTA Women’s Daytime Doubles
| Minimum Roster Deadline | Season Starts | Season Ends | Score Entry Deadline | District Championships |
| May 15 | May 29 | July 26 | July 27 | N/A |
| Registration Opens: | April 1 |
| USTA Colorado League Fee: | $33 (+$3.15 active.com fee) |
| Minimum Roster Deadline: | May 15 |
| Minimum # of Players on Roster: | 6 Players (75% In-Level Rule) |
| Match Schedules Available: | May 22 |
| Season Starts: | May 29 |
| Season Ends: | July 26 |
| Player Deletion Deadline: | June 19 |
| Score Entry Deadline: | July 27 by 11:59pm |
| CTA Women’s Daytime Doubles League Details: | League Info |
USTA Adult 40 & Over
| Minimum Roster Deadline | Season Starts | Season Ends | Score Entry Deadline | District Championships |
| June 5 | June 22 | July 27 | July 29 | August 14-16 |
| Registration Opens: | May 1 |
| USTA Colorado League Fee: | $33 (+$3.15 active.com fee) |
| Minimum Roster Deadline: | June 5 |
| Minimum # of Players on Roster: | 9 Players: NTRP 3.0-4.5 (75% In-Level Rule) 3 Players: NTRP 5.0 (non-advancing) |
| Match Schedules Available: | June 15 |
| Season Starts: | June 5 |
| Season Ends: | July 27 |
| Player Deletion Deadline: | July 17 |
| Score Entry Deadline: | July 29 by 11:59pm ** |
| Flight Playoff Schedules Available (if applicable): | July 27 by 6:00pm |
| Flight Playoffs (if applicable): | August 1 |
| Flight Playoff Match Times by Level (if applicable): | 10am: M 3.0, M 3.5, M 4.0 1pm: W 3.0, W 4.0 3pm: W 3.5, W 4.5, M 4.5 |
| Flight Playoff Score Entry Deadline (if applicable): | August 2 by 11:59pm |
| District Schedules Available: | August 7 by 6:00pm |
| District Championships: | August 14-16 |
| Sectional Championships: | More Info |
| National Championships: | More Info |
| USTA Adult 40 & Over League Details: | League Info |
CTA Adult 18-39
| Minimum Roster Deadline | Season Starts | Season Ends | Score Entry Deadline | District Championships |
| June 5 | June 22 | August 12 | August 16 | N/A |
| Registration Opens: | May 1 |
| USTA Colorado League Fee: | $33 (+$3.15 active.com fee) |
| Minimum Roster Deadline: | June 5 |
| Minimum # of Players on Roster: | 6 Players |
| Match Schedules Available: | June 15 |
| Season Starts: | June 22 |
| Season Ends: | August 12 |
| Player Deletion Deadline: | July 6 |
| Score Entry Deadline: | August 16 by 11:59pm ** |
| CTA Adult 18-39 League Details: | League Info |
CTA Women’s 2.5 (18 & Over)
| Minimum Roster Deadline | Season Starts | Season Ends | Score Entry Deadline | District Championships |
| June 5 | June 22 | July 27 | July 29 | N/A |
| Registration Opens: | May 1 |
| USTA Colorado League Fee: | $33 (+$3.15 active.com fee) |
| Minimum Roster Deadline: | June 5 |
| Minimum # of Players on Roster: | 5 Players |
| Match Schedules Available: | June 15 |
| Season Starts: | June 22 |
| Season Ends: | July 27 |
| Player Deletion Deadline: | July 17 |
| Score Entry Deadline: | July 29 by 11:59pm |
| CTA Women’s 2.5 (18 & Over) League Details: | League Info |
ITA Mixed
| Minimum Roster Deadline | Season Starts | Season Ends | Score Entry Deadline | District Championships |
| June 5 | June 25 | August 23 | August 30 | September 18-20 |
| Registration Opens: | May 1 |
| USTA Colorado League Fee: | $33 (+$3.15 active.com fee) |
| Minimum Roster Deadline: | June 5 |
| Minimum # of Players on Roster: | 6 Players |
| Match Schedules Available: | June 18 |
| Season Starts: | June 25 |
| Season Ends: | August 23 |
| Player Deletion Deadline: | August 24 |
| Score Entry Deadline: | August 30 by 11:59pm |
| District Schedules Available: | September 11 by 6:00pm |
| District Championships: | September 18-20 |
| Sectional Championships: | More Info |
| ITA Mixed League Details: | League Info |
USTA Tri-Level
| Minimum Roster Deadline | Season Starts | Season Ends | Score Entry Deadline | District Championships |
| June 30 | July 14 | August 25 | August 27 | September 18-20 |
| Registration Opens: | May 1 |
| USTA Colorado League Fee: | $33 (+$3.15 active.com fee) |
| Minimum Roster Deadline: | June 30 |
| Minimum # of Players on Roster: | 6 Players: 3.0-3.5-4.0 (2 per NTRP Level) 6 Players: 3.5-4.0-4.5 (2 per NTRP Level) |
| Match Schedules Available: | July 7 |
| Season Starts: | July 14 |
| Season Ends: | August 25 |
| Player Deletion Deadline: | August 7 |
| Score Entry Deadline: | August 27 by 11:59pm |
| District Schedules Available: | September 11 by 6:00pm |
| District Championships: | September 18-20 |
| Sectional Invitational: | More Info |
| National Invitational: | More Info |
| USTA Tri-Level League Details: | League Info |
USTA Adult 65 & Over
| Minimum Roster Deadline | Season Starts | Season Ends | Score Entry Deadline | District Championships |
| July 3 **May 23 | July 20 | August 27 | August 28 | September 8-10 |
| Registration Opens: | May 1 |
| USTA Colorado League Fee: | $33 (+$3.15 active.com fee) |
| Minimum Roster Deadline: | July 3 **May 23 (Any level that plays a local league against teams from other areas must register by the earlier date listed.) |
| Minimum # of Players on Roster: | 6 Players |
| Match Schedules Available: | July 13 |
| Season Starts: | July 20 |
| Season Ends: | August 27 |
| Player Deletion Deadline: | August 7 |
| Score Entry Deadline: | August 28 by 11:59pm |
| District Schedules Available: | September 1 by 6:00pm |
| District Championships: | September 8-10 |
| Sectional Invitational: | More Info |
| National Invitational: | More Info |
| USTA Adult 65 & Over League Details: | League Info |
CTA Women’s Summer Daytime
| Minimum Roster Deadline | Season Starts | Season Ends | Score Entry Deadline | District Championships |
| July 31 | August 14 | September 25 | September 28 | N/A |
| Registration Opens: | June 1 |
| USTA Colorado League Fee: | $33 (+$3.15 active.com fee) |
| Minimum Roster Deadline: | July 31 |
| Minimum # of Players on Roster: | 5 Players (75% In-Level Rule) |
| Match Schedules Available: | August 7 |
| Season Starts: | August 14 |
| Season Ends: | September 25 |
| Player Deletion Deadline: | August 7 |
| Score Entry Deadline: | September 28 by 11:59pm |
| CTA Women’s Summer Daytime League Details: | League Info |
CTA Twilight
| Minimum Roster Deadline | Season Starts | Season Ends | Score Entry Deadline | District Championships |
| July 24 | August 10 | September 30 | October 5 | N/A |
| Registration Opens: | June 1 |
| USTA Colorado League Fee: | $33 (+$3.15 active.com fee) |
| Minimum Roster Deadline: | July 24 |
| Minimum # of Players on Roster: | 5 Players (75% In-Level Rule) |
| Match Schedules Available: | August 3 |
| Season Starts: | August 10 |
| Season Ends: | September 30 |
| Player Deletion Deadline: | September 4 |
| Score Entry Deadline: | October 5 by 11:59pm |
| CTA Twilight League Details: | League Info |
Day of Week and Time of Day by NTRP Level
| League | Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday |
|---|---|---|---|---|---|---|---|
| USTA Mixed 18 & Over | 9:30 AM and/or 5:30 PM | 6:00 PM | Some possible | ||||
| USTA Adult 18 & Over | Some possible | 6:00 PM Women | 6:00 PM Men | 6:00 PM Women | Some possible | ||
| USTA Adult 55 & Over | Some possible for both Sat & Sun W6.0, W7.0, W8.0 M7.0, M8.0 | W6.0 6:00 PM W7.0 10:00 AM W8.0 6:00 PM | 6:00 PM W8.0 | Some possible for both Sat & Sun W6.0, W7.0, W8.0 M7.0, M8.0 | |||
| CTA Women’s Daytime Doubles | 9:30 AM Women Subject to Change | ||||||
| USTA Adult 40 & Over | Some possible | 6:00 PM Women | 6:00 PM Men | 6:00 PM Women | Some possible | ||
| CTA Adult 18-39 | 6:00 PM Women | 6:00 PM Men | 6:00 PM Women | ||||
| CTA Women’s 2.5 (18 & Over) | Some possible | 6:00 PM Women | 6:00 PM Women | Some possible | |||
| USTA Tri-Level | Some possible | Some possible | Some possible | Some possible | Some possible | Some possible | Some possible |
| CTA Women’s Summer Daytime | 9:30 AM Women Subject to Change | ||||||
| USTA Adult 65 & Over | Some possible | Some possible | Some possible | Some possible | Some possible | Some possible | Some possible |
| ITA Mixed | 9:30 AM and/or 5:30 PM | 6:00 PM | Some possible | ||||
| CTA Twilight | Some possible | 5:30 PM or 6:00 PM Women | 5:30 PM or 6:00 PM Men | 5:30 PM or 6:00 PM Women | Some possible |