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Colorado's Premier Tennis Series

The Colorado Majors

Four tournaments. One unforgettable summer.

From June through September, these are the events that bring Colorado's tennis community together — from first-time competitors to title contenders.

2026 Schedule

JUNE 5-14

Denver City Open Est. 1914

Denver Tennis Club
JULY 17-24

Broomfield Open Est. 1985

Broomfield Swim & Tennis Club
SEPT 2-8

Longmont Open Est. 2007

Quail Tennis Complex
SEPT TBD

Colorado State Open Est. 1891

Gates Tennis Center

Some dates are still being finalized—check back soon or get notified when schedules drop.

June 5-14, 2026

Denver City Open

Denver Tennis Club
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The 3rd largest USTA Adult Sanctioned Tournament in the country. Part of the legendary 'Big Three' Colorado tournaments, this prestigious event at the historic Denver Tennis Club remains a must-play—one of Colorado's oldest and most storied traditions.

By the Numbers

Est. 1914 112 years running
745 players
40 divisions
Family divisions Open divisions Age divisions
Denver Tennis Club
Historic Denver Tennis Club courts during the Denver City Open
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July 17-24, 2026

Broomfield Open

Broomfield Swim & Tennis Club
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Colorado's largest tournament by entries. This mid-summer classic at Broomfield Swim & Tennis Club combines top-tier competition with the welcoming atmosphere that defines Front Range tennis—a week of fierce matches, great food, and celebration.

By the Numbers

Est. 1985 41 years running
422 players
28 divisions
Open divisions
Broomfield Swim & Tennis Club
Tennis courts at Broomfield Swim & Tennis Club during the tournament
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September 2-8, 2026

Longmont Open

Quail Tennis Complex
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The next generation of Colorado tennis tradition. This community-driven tournament at Quail Tennis Complex has grown from a local gathering into a premier Front Range event, built on quality competition, community spirit, and volunteer excellence.

By the Numbers

Est. 2007 19 years running
388 players
25 divisions
Open divisions
Quail Tennis Complex
Tennis courts at Quail Tennis Complex during the Longmont Open
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September 2026 · Dates TBD

Colorado State Open

Gates Tennis Center
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The nation's largest annual tennis tournament. Originally the Rocky Mountain Tennis Championships, this historic event has crowned legends like Don Budge, Bobby Riggs, and Althea Gibson—a tradition that began just 15 years after Colorado achieved statehood.

By the Numbers

Est. 1891 135 years running
393 players
82 divisions
Age divisions Inclusive divisions Open divisions Junior divisions
Gates Tennis Center
Gates Tennis Center courts during the Colorado State Open
$5K+ Prize Pool
Historic Legacy

Future Grand Slam champions Don Budge, Bobby Riggs, and Althea Gibson once competed here.

Explore the full history
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Beyond the Majors

Colorado's other marquee events — fierce competition, great venues, and the same intensity.

452 players in 2025

Meadows Ned Cooney

Premier adult tournament at Meadows Swim & Tennis in Boulder.

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316 players in 2025

Austin Scott Memorial

Historic 50-year-old tournament hosted by Boulder Tennis Association at Longmont Recreation Center.

Explore

364 players in 2025

South Suburban Valentine's Classic

Popular annual indoor doubles tournament at Littleton Golf & Tennis Club, hosted by South Suburban Parks and Recreation.

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400 players in 2025

Apex Tennis Championships

Inaugural adult tournament at Apex Tennis Center, debuting in 2025.

Explore

243 players in 2025

Steamboat NTRP Championships

Annual NTRP tournament in the Colorado mountains at Steamboat Tennis and Pickleball.

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The Colorado Grand Slam

Can you win all four?

Claim every title in a single season — the rarest achievement in Colorado tennis.

Denver City Open Broomfield Open Longmont Open Colorado State Open

Major Moments

Evening doubles match at Broomfield Open
Tennis courts at Quail Tennis Complex
Dogs enjoying the tournament atmosphere
Player hitting a forehand at Broomfield Open
Doubles action with overhead smash at Denver City Open
Players exchanging high-five at the net
Players gathering at vendor tents at Longmont Open
Historic Denver Tennis Club courts
Gates Tennis Center during Colorado State Open
Player leaping for a forehand at Broomfield Open
Woman hitting forehand at Denver Tennis Club
Player preparing for backhand in dramatic black and white
Player hitting low forehand with USTA banner visible
Spectators watching from bleachers at Longmont Open
Players competing at Broomfield Open
Broomfield Swim & Tennis Club courts
Spectators relaxing on the lawn at Broomfield Open
Friends socializing courtside at Denver City Open
Player awaiting serve in artistic black and white
Mixed doubles serve at Denver City Open
Group of friends with dog at Longmont Open

Your Questions, Answered

The Colorado Majors are the biggest tournaments in Colorado tennis, held annually from June through September. These events have deep history and attract top players from around the region. The four majors are:
  • Denver City Open (June)
  • Broomfield Open (July)
  • Longmont Open (September)
  • Colorado State Open (September)
Each major offers ranking points, a variety of divisions, and a chance to compete for prestigious titles.

The Colorado Grand Slam is achieved by winning all four Colorado Majors in the same calendar year. This rare feat showcases a player's dominance across multiple events and surfaces. Grand Slam winners receive special recognition, awards, and are celebrated within the Colorado tennis community.

Most Colorado Majors offer multiple divisions to accommodate various skill levels. USTA-sanctioned events typically offer NTRP-rated divisions (3.0 through Open), while UTR events use Universal Tennis Rating for competitive matching. Some tournaments also offer Family Divisions (mother/son, father/daughter, etc) and Inclusive Divisions. Check individual tournament details for available divisions.

Registration for each major typically opens 4-6 weeks before the tournament date. The Denver City Open kicks off the season in June, followed by the Broomfield Open in July, then Longmont Open and Colorado State Open in September. Sign up for notifications to be alerted when registration opens.

The 2025 Colorado State Open featured a prize pool of $5,000+ for top finishers in the Open Division. Denver City Open occasionally features prize money for open divisions. The other majors focus on ranking points and the prestige of winning a major championship. Check individual tournament pages for current prize and award details.

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