At 15, the field is regulation size. Bases are 90 feet apart, pitcher's rubber is 60ft 6 inches from home plate.
For youth Baseball rules see:
http://www.hitpitchcatch.com
MLB (Major League Baseball) bases are 90 feet apart.
60 feet
The distance between bases in baseball is 90 feet.
80 feet
In the Babe Ruth baseball league for 13-15 year olds, a regulation size baseball field is used (typically a high school's field), which has bases 90 feet apart and an elevated mound 60.5 ft away from home plate.
newtest3 about 40 feet ---------- The above is incorrect. In Little League Baseball the bases are 60 feet apart until you get to the Junior Division (13 and 14-year-old).
Fastpitch softball ASA bases are 60 feet apart.
They are 90 feet apart.
Tee ball is a sport to help introduce children to baseball and is geared towards players ages 4 to 6. The bases in tee ball are set 50 feet apart.
60 feet
90 feet Any middle school baseball field has 90 foot bases 90 feet Any middle school baseball field has 90 foot bases
25 feets