Spring Regular Season

The Regular Season is the most commonly played season for Baseball in Calgary.  Players are separated into age- and, in some cases, skill-delineated divisions.

*Intermediate Division is at the discretion of Centennial Little League to form based upon Registration numbers and skill level of 13 year olds

**Juniors AAA and Seniors AAA seasons may extend beyond the August Long Weekend should they win their way to the Little League World Series in their respective age group.

*** Note - Late Registration Fee will be applied on March 1st for Minors/American, Nationals, Juniors and Seniors.  The Late Registration Fee will be applied on April 1st for T-Ball and Rookie Ball.

What are the Little League Age brackets?

Little League has chosen to align kids' ages to a September-to-August calendar to ensure that kids participating in the Little League World Series are the appropriate age for their respective division.  This differs from other sports in Calgary and the area; however, as a Little League Chartered Association, we are required to follow the age brackets as they are established in the Little League Rule book

Those age brackets are as follows:

What are the Divisions?

T-Ball LL Ages 4-6*

Young players are introduced to the game of baseball. They learn, develop and practice fundamental baseball skills at an early age to receive maximum enjoyment from the experience.  Emphasis is placed on participation and enjoying their first baseball experience.

Rookie Ball LL ages 7-8*

Players continue to develop their skills and learn the rules of baseball. Emphasis is placed on hitting, base running, fielding/throwing, and teamwork. Both Offensive and Defensive fundamentals are stressed. 

**If there is enough interest, we may offer a developmental league option (second-year players only) that would merge with newer American League participants. This league would include a mix of kid-pitch and coach-pitch to support skill development while keeping the game flowing.**

American League and Minors LL ages 9-10*

Players are evaluated for the first time in the Minors division.  Player pitching is introduced, and all players are encouraged to try pitching. Umpires in this division allow a fairly liberal strike zone. The object of the game is to get the ball hit into play as often as possible. Players are encouraged to play all positions throughout the season. This is the first age group in which All-Star teams can continue Tournament play after the season ends.

**Players in the American League who would benefit from additional support may be placed in a developmental league alongside stronger second-year rookie ball players. This setup is designed to accelerate their development while keeping the game moving and enhancing their learning experience.

National League and Majors LL ages 11-12*

Players are drafted based on their ability and development to either a Major or or a National League team. The number of teams varies year to year depending on enrollment. Continuous batting orders are mandatory at this level, and players are encouraged to play all positions throughout the season. All-Star teams can continue with tournament play after the season ends.

*NOTE - Continuing for the 2026 Season, you will be required to determine in advance if you wish to evaluate for Majors or Nationals.  The Majors Registration will close on January 25, with evaluations starting on January 31.  Anyone who does not make a Majors team will be moved into the Nationals Division.

Intermediate LL Ages 13*

Depending on Registration numbers and skill levels as determined during Evaluations, Centennial Little League may decide to form intermediate-level teams.  The Intermediate Level plays on a Majors Size diamond (200 Ft Fences) with a 70 Foot Base Path and a 50' Pitching Mound.

Juniors LL Ages 13-14*

In Juniors, players are evaluated for Tier 1 and Tier 2 teams based on their ability and development. Leading off is introduced, and diamond sizes and rules are in line with the rules of baseball. All-Star teams can continue with Tournament play after the season ends.

Juniors AAA 13-14*

Juniors AAA Teams are formed with kids from Little League Baseball Alberta District 3.  Registration will close for this opportunity in early February, with Early February Evaluations.  This team will begin practicing in February (indoors) and will play games from May through the August Long Weekend.  This team is on the path to participate in the Little League Junior World Series Tournament.  Games will be played across Alberta.

Seniors LL Ages 15-16*

Senior players are evaluated for Tier 1 and Tier 2 teams based on their ability and development. Diamond sizes and rules are in line with baseball's rules. The team atmosphere and dynamics are geared toward older players, with a focus on refining baseball fundamentals and introducing advanced techniques and strategies. All-Star teams can continue with Tournament play after the season ends.

Seniors AAA

Seniors AAA Teams are formed with kids from Little League Baseball Alberta District 3.  Registration will close for this opportunity in early February, with Early February Evaluations.  This team will begin practicing in February (indoors) and will play games from May through the August Long Weekend.  This team is on the path to participate in the Little League Junior World Series Tournament.  Games will be played across Alberta.