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BASEBALL DIAMOND DIMENSIONS DIMENSIONS

RALLY CAP, ROOKIE, MOSQUITO

PEE WEE

BANTAM

MIDGET, JUNIOR, SENIOR, TWILITE

Base Lines

60 ft.

70 ft.

80 ft.

90 ft.

Pitching Distance

44 ft.

48 ft.

54 ft.

60 ft. 6 in.

Centre Field Boundary

Minimum: 200 ft. / Preferred: 225 ft.

Min: 250 ft / Pref: 280 ft.

Min: 250 ft / Pref: 400 ft.

Foul Line Boundary

Minimum: 180 ft. / Preferred: 200 ft.

Min: 225 ft / Pref: 240 ft.

Min: 250 ft / Pref: 320 ft.

Backstop Setback

25 - 40 ft.

40 - 50 ft.

60 ft.

35 - 45 ft.

Fence Setback

25 ft.

50 ft.

60 ft.

Coach’s Box

8 ft. x 12 ft.

8 ft. x 16 ft.

10 ft. x 20 ft.

Coach’s Box Setback Batter’s Box

10 ft.

15 ft. 4 ft. x 6 ft.

3 ft. - 6 ft.

Batter’s Box to Home Plate

6 inches

4 inches

Pitcher’s Plate

4 in. x 18 in.

6 in. x 24 in.

Max Height of Pitcher’s Mound

6 inches

10 inches

Bases

0.38 m (square) - 15 inches (square)

Home Plate

0.43 m (wide) - 17 inches (wide)

8 | Baseball Alberta Handbook 2018

Baseball Alberta Handbook 2018  
Baseball Alberta Handbook 2018