These Mosquito rules are in addition to the General Rules.
 
1. This league is for ten and eleven year old boys and girls.
 
2. Once an inning is started it should be completed if possible.
 
3. Each player on the team must play a minimum of three innings on defense within the first five innings, (one of these must be in the infield). It is required that each player plays at least two innings in the infield. Four outfielders will be used in an outfield position.
 
4. Free substitution is allowed, but not in a way to unduly delay the game. The catcher cannot be changed during an inning unless due to injury to the catcher.
 
5. If no umpires are available at game time, every effort should be made to obtain volunteers from the spectators or the coaching staffs.
 
6. Baseball rules apply with the following exceptions:
a. There are no balks (because of the no lead off rule), however, deliberate deception of the runner is not allowed.
b. Batter cannot run on a dropped third strike.
c. Base runners may not leave the base until the ball leaves the pitchers hand. On any violation, the ball is immediately dead and all runners must return to their original base. At the first occurrence, the umpire will call ‘Time’ and return all runners. The umpire will then issue a warning to the offensive team that any subsequent leadoff will result in the player being called out. On the second or any subsequent infraction, the umpire will call ‘Time’, declare the offending runner out and return the other runners to their base. Umpires may remind coaches during ground rules but this reminder is not an official warning. If a runner does lead off the offending team will still receive a warning.
d. The infield fly rule does not apply.
 
7. A runner on 3rd base may not advance to home on a throw back to the pitcher from the catcher regardless of whether the throw was caught or not and cannot advance on a pass ball (no stealing home).
 
8. A Mosquito pitcher is allowed a maximum of six consecutive outs in one appearance. Once a pitcher is removed he/she may not pitch again in that game.

9. Basepaths are 65 feet apart and pitcher's mound is 44 feet.