COSMO Lacrosse was founded on the principals of fun, long term athletic development, and two dad's wanting to spend time with their kids. Coaches Ben and Drew launched our first "club" team in the summer of 2021. Our combined 2028/2029 team played in two local tournaments and played box lacrosse throughout the winter, spring and summer together. Why? Because sport is meant to be fun and we have loved the game of lacrosse since we played as kids in upstate New York (Syracuse, NY). Now, we look to continue to grow the game of lacrosse and not only teach our kids but to grow the game for boys and girls in northern El Paso county because we love the game.


Team COSMO Summer 2022

Denver Shootout, 2nd Place 2028A Division


Fall 2022 Teams!

Current 5th - 8th Grade Boys (Two Teams - 5th/6th & 7th/8th)

Box League (Castle Rock)
2 Tournaments (Greater Denver)

Weekly practices

Custom uniforms

Experienced coaches


Register for Assessment Days:

Experienced players encouraged to attend our upcoming evaluation days: TBD, announced early January

Fall 2022 COSMO Team Details

  • Boys currently in 5th through 8th grade welcome

  • Weekly practices, late August through late October

  • All players must be USA Lacrosse members

  • Coaches: Drew Stevenson, Ben Holstein & TBD

To learn more please email 

Fee: TBD, includes 12+ practices, uniform and league/tournament fees


To become a member of US Lacrosse Click Here.

Select "Youth Membership" - it is good for one year, so if you sign up for any other US Lacrosse based program, including all COSMO programs, you will be covered/not have to pay again for a full year.