My my My my
Fall Clinics and Team Placements for spring 2022

by posted 10/05/2021
Thunder Box Lacrosse – Fall Program









Season August 29th - October 17th

7 game minimum, all team's make the playoffs, 1 championship game per division

Sundays only league - games played at Metzler Park Rinks in Castle Rock


DIVISIONS: (based on school age for 2021-2022 School Year)

Novice: 3rd & 4th Grade

Peewee: 5th & 6th Grade


  • Box Lacrosse clinics / training days - provided by Thunder Lacrosse.
  • Thunder does not provide fall practices throughout the season, however, your coach may choose to do so, and teams may practice during the week, TBD by the coach.
  • Returning and New players welcome. New players will be placed on rosters based on availability.
  • New players will be placed on teams and there will be minimal practice/training.
  • This is an ‘off-season’, games only league.  Some lacrosse experience would be advised, but not required.
  • Coach requests and Free Agents welcome. Free Agents will be placed on rosters based on availability.
  • Box Goalie Equipment – provided by Thunder Lacrosse.


Required Equipment – provided by the players

  • Stick
  • Rib / Kidney Pads
  • Bicep Pads
  • Turf / Box Footwear
  • Helmet
  • Gloves
  • Elbow Pads
  • Shoulder Pads
  • Mouth Guard


Thunder Lacrosse does provide available equipment to players to use, inquire with questions via email to 


Registration includes a reversible jersey.

by posted 08/04/2021
Game Day Photos - Spring 2021



Spring 2021 - Game Day Photos



by posted 04/20/2021
2020 Season - Team Pictures


by posted 08/30/2020
Welcome to Thunder Boys Lacrosse


Thunder Lacrosse is dedicated to the development of lacrosse in South Metro Denver by providing the opportunity to learn and play the game in a fun and challenging atmosphere.

The Thunder boys program is a member club of the Arapahoe Youth League (AYL).

The AYL is the Premier Competitive Youth Sports League in the Denver Metro area. They AYL offers competitive league play for all levels of talent from age 6 until high school. The AYL has member programs across the south metro area - South Denver, Littleton, Centennial, Highlands Ranch, Aurora, Parker and Castle Rock.

by Littleton Thunder posted 03/21/2020




2021 / 2022 Calendar of Events

Spring Lacrosse:

Nov: 3rd-8th grade - fall clinics and team placements

Nov - Mar, 2022: registration for spring 2022 lacrosse

Jan 6: uniform order deadline

Feb 28: Practices begin

Mar 5 and 6: King of the Rock and AYL Pre-season Tournaments

Mar 12: AYL Regular Season games begin

May 14-15: AYL Playoffs

May 20-22: AYL Championships

Calendar is loading...
Field Status
Metzler Ranch Park-West - Castle Rock OPEN (10/23) 
Loading Weather...