Tags/Boulder-County on BoulderLacrosse.com

Box Lacrosse in Boulder County

Sat, 18 Apr 2026 00:00:00 +0000

Box lacrosse is the indoor version of the game — fast, physical, and played in an enclosed arena. It's the same sport the Colorado Mammoth play in the National Lacrosse League (NLL). If you've been to a Mammoth game at Ball Arena in Denver, you've seen box lacrosse at its highest level.

How Box Lacrosse Differs from Field Lacrosse

Box lacrosse is played on a smaller surface (typically a converted hockey rink with turf laid over the ice, or a dedicated box) with boards along the sides. Key differences:

College & University Lacrosse in Boulder County

Sat, 18 Apr 2026 00:00:00 +0000

Boulder County is home to the University of Colorado Boulder, which fields both competitive club lacrosse teams and supports student-run programs. Colorado's college lacrosse scene continues to grow as the sport expands at the NCAA level.

University of Colorado Boulder

CU Boulder has active men's and women's club lacrosse programs that compete in the MCLA (Men's Collegiate Lacrosse Association) and WCLA (Women's Collegiate Lacrosse Association), respectively. These programs are student-run, highly competitive, and travel for regional and national tournaments.

High School Lacrosse in Boulder County

Sat, 18 Apr 2026 00:00:00 +0000

High school lacrosse in Boulder County is sanctioned by the Colorado High School Activities Association (CHSAA) and plays in the spring season. Multiple schools in the Boulder Valley School District and surrounding areas field varsity and junior varsity teams.

Who It's For

Students in grades 9–12 enrolled in a CHSAA member school. Both boys and girls programs compete under CHSAA rules.

Season

CHSAA spring lacrosse runs approximately March through May, with state playoffs in May.

Lacrosse Programs in Boulder County

Sat, 18 Apr 2026 00:00:00 +0000

Boulder County, Colorado has a thriving lacrosse community at every level of play. Whether your player is picking up a stick for the first time or competing at the college level, this is your guide to lacrosse programs in the area.

Browse the programs below to find the right fit.

Middle School Lacrosse in Boulder County (6th–8th Grade)

Sat, 18 Apr 2026 00:00:00 +0000

Middle school is where many Boulder County players develop their skills and start competing at a higher level. Programs at this stage bridge recreational play and the more serious high school game.

Who It's For

Players in 6th through 8th grade (ages 11–14). Both boys and girls programs are available. Some players compete in club programs year-round in addition to school-based teams.

Season

The primary season is spring (March–May). Club programs may compete in fall and winter as well.

Premier Lacrosse League: Pro Outdoor Lacrosse on TV

Sat, 18 Apr 2026 00:00:00 +0000

The Premier Lacrosse League (PLL) is the top professional outdoor field lacrosse league in the United States, and if you haven't watched it yet, you're missing some of the best lacrosse on the planet.

What Is the PLL?

The PLL was founded in 2019 and quickly became the dominant force in professional outdoor lacrosse. It operates on a tour model — rather than having teams based in specific cities, the league travels to different host cities each weekend, bringing games to fans across the country.

The Colorado Mammoth: Boulder's Home Pro Lacrosse Team

Sat, 18 Apr 2026 00:00:00 +0000

If you follow lacrosse in Boulder County, the Colorado Mammoth should be on your radar. They're a 30-minute drive down US-36, they play one of the most exciting sports you'll watch live, and they represent the highest level of box lacrosse in the world.

Who Are the Mammoth?

The Colorado Mammoth are a franchise in the National Lacrosse League (NLL) — the premier professional indoor lacrosse league in North America. The NLL has teams across the US and Canada, and the Mammoth are one of the league's marquee franchises with multiple championships in their history.

What Is Box Lacrosse? Guide for Boulder County Families

Sat, 18 Apr 2026 00:00:00 +0000

If you've been to a Colorado Mammoth game or watched NLL highlights, you've seen box lacrosse. But if you're newer to the sport, you might be wondering how it differs from the outdoor game your kid plays in the spring. Here's a quick breakdown.

The Basics

Box lacrosse is played indoors in an enclosed arena — typically a hockey rink with turf laid over the ice, surrounded by boards. The playing surface is smaller than a field lacrosse field, and the boards keep the ball in play continuously.

Youth Lacrosse in Boulder County (K–5th Grade)

Sat, 18 Apr 2026 00:00:00 +0000

Youth lacrosse in Boulder County introduces kids to the game in a fun, developmental environment. Programs at this level emphasize fundamentals — cradling, passing, catching, and basic game concepts — while keeping competition age-appropriate.

Who It's For

Elementary-age players, typically kindergarten through 5th grade (ages 5–11). Many programs use modified rules and smaller field sizes to match the players' development stage.

Season

Youth lacrosse in Colorado typically runs in spring (March–May), with some programs offering fall ball or indoor winter clinics.

Welcome to BoulderLacrosse.com

Fri, 12 Jan 2024 00:00:00 +0000

Useful lacrosse links for Boulder County and beyond:

Lacrosse Links

Colorado Lacrosse Links

International Lacrosse Links

National Lacrosse Links

Rules & Equipment Links

Colorado Lacrosse Links

Vail Shootout Yearly lacrosse tournament held in Vail, Colorado.
Denver University (DU) Men's Lacrosse
Arapahoe High School Official Lacrosse Team Page
Play it Again Sports Buy, Sell Trade Lacrosse Gear in Boulder
Boulder Lacrosse Valley Lacrosse non-profit organization that develops and promotes lacrosse in Boulder County Colorado.

International Lacrosse Scene

International Lacrosse Expo A place for retailers to meet lacrosse manufactures.
Paradise Lacrosse Tournament Ray Trevaskis has had the last tourney.
World Lacrosse Games
USA Lacrosse
South African Lacrosse
New Zealand Lacrosse
Lacrosse Australia
United Lacrosse Nation
England Lacrosse

National Lacrosse Scene

Intercollegiate Women's Lacrosse Association Oriented to women's college game, with a section for high schoolers planning to play in college.
The National Lacrosse League Official site of professional indoor lacrosse league
Premier Lacrosse League

Rules and Equipment

USA Lacrosse The governing body of the sport in the US. Sections on history of the game, on-line Q & A, home of Lacrosse Magazine and Lax for Kids Magazine.
STX Lacrosse Equipment vendor, with men's and women's rules of the game, and a Chat Zone.
Brine Equipment vendor, strictly gear.
Warrior Lacrosse - Lacrosse Equipment Company now owned by New Balance Shoes.