Please Note: There are printer friendly ground rules for each field location. Just click the next to the field name.

Smith Fields     

Field #1
(located next to the large tree along the 3rd base line)
On each side, an imaginary line from the fence in front of each bench area to the light pole shall be used for catches and overthrows, with the pole being dead. On each side past the first light pole, any fly ball may be caught for an out, but the imaginary line remains for overthrows. However, any ball touching any part of the tree shall be ruled dead and foul.

Field #2
(located adjacent to the Harvard University parking lot)
On each side, an imaginary line from the fence in front of each bench area to the first light pole shall be used for catches and overthrows, with the pole being dead. One the first base side, the out of play line runs from light pole to light pole for both catches and overthrows. No plays may be made against the fence. On the third base side, any ball may be caught for an out past the first light pole, but the imaginary line remains for overthrows.

Field #3
(located near the basketball and hockey courts)
On each side, extend an imaginary line along the fence in front of each bench area for overthrows. On the first base side, any fly ball past the fence may be caught for an out up to but not onto the tarred path. One the third base side, any fly ball past the fence may be caught for an out anywhere as long as it does not hit a tree.

Boston Common Fields     
Any ball hit over the fence either on the fly or on a bounce is a ground rule double. On each side, extend an imaginary line along the fence in front of each bench for overthrows. Beyond that fence, any ball may be caught for an out NOT on or over the tarred path.

Fenway Fields     

Field 1: (something similar, but not as fragmented. No hill, no power pole.)

1. Over the grandstand, anywhere, home run
2. Bounces Into the grandstand, anywhere, double
3. Over the grandstand on the fly, right of 20 yard line, double
4. Over the grandstand on the fly, left of 20 yard line, home run
5. Track in outfield all in play
6. Track on 3rd base side is the dead ball line
7. Extend fence at players' bench on first base side for that dead ball line.

Field 2: (closest to basketball courts)

1. The hill (the grassy knoll) left of the stands: Double if it rolls over or flies over
2. Bounces into the stands (and even if it bounces out) anywhere, ground rule double.
3. Off the FACE of the grandstand, ball in play.
4. On the fly into the grandstand, between start of stands and 20 yard line, double
5. On the fly into the grandstand, to the right of the 20, home run.
6. On the fly over the grandstands anywhere, home run.
7. Hitting the power pole on the fly or ground beneath or on the transformer box, double; over the transformer box, home run.
8. The track is all in play in the outfield
9. The track is the dead ball line on the first base side.
10. Extend fence at players' bench on third base side for dead ball line.