The Little League Challenger Division started in 1989 as a way to enable boys and girls with physical or mental challenges and give them an opportunity to play the game of baseball.
From LittleLeague.org:
“In a Challenger game, each player gets a chance to bat. The side is retired when the offense has batted through the roster, or when a pre-determined number of runs have been scored, or when three outs are recorded. Little League recommends that no score be kept during Challenger games. The Challenger players wear the same uniforms, shoulder patches and safety equipment as other Little League players.
One of the benefits of having a Challenger Division is that it encourages the use of “buddies” for the Challenger players. The buddies assist the Challenger players on the field, but whenever possible, encourage the players to bat and make plays themselves. However, the buddy is always nearby to help when needed.”