The Mustang division is for 9 and 10-year-olds, born between May 1, 2006 and April 30, 2008. Mustang baseball provides a fun, competitive, “kid pitch” baseball experience for committed players and their families.

Mustang Division baseball will hold skills assessments prior to the season's start. All Mustang players must attend one of these sessions. For the 2017 season, Mustang skills assessments will be held on March 4th and March 12th, at a location and time to be announced.  Teams should be formed by March 15, with practices beginning March 16 or after, and games beginning the week of March 27th.  

Teams will practice 2 to 3 times a week prior to the season opener.  After that date, they will play a game on Tuesday or Thursday and one game on Saturday.  The players will also have one official practice per week on Monday, Wednesday or Friday. 

We play 16-18 games concluding with a tournament which begins the first week of June and ends with a Championship Game on Championship Saturday!  The league-wide annual Seattle Pony Barbecue follows the game. 

Seattle Pony Baseball has adopted the And-Under rule for determining age eligibility in accordance with the National PONY guidlelines.

For the Mustang Division, this rule means that if a player was born between May 1, 2008 and April 30, 2009 (i.e., the player is a “league-age” 8 year old), the player may “play up” into the Mustang Division, but only provided they meet the minimum skills assessment criteria as described in the age eligibilty section of this website. Before making the decision to have a child “play up,” Seattle Pony Baseball strongly urges parents to consider whether their 8 year old has the maturity level and requisite skills to play the game of baseball with significantly older and stronger players. Should you choose to register your child for Mustang under this rule, you can continue here with Mustang registration.

For more information, please contact Mustang Commissioner Keri Read at