The regulation field is used for the Open, Under 18 and Under 16 age groups. A modified field is used for Little League and Under 14.
The infield (also called diamond) is a 27.4m square and is graded so that the baselines and home plate are level. The infield and outfield, including the boundary lines, are fair territory and all other areas are foul territory.The minimum
distance from home base to the nearest fence, stand or other obstruction on fair territory is 76.2m. The pitcher’s plate is 10 inches above the level of home late. The degree of slope from a point 6 inches in front of the pitcher’s
plate to a point 6 feet toward home plate is 1 inch to 1 foot and is uniform.It is preferred that the line from home base through the pitcher’s plate to second base runs east‑south-east.Measurements of distances to
the bases are as following:
The foul lines and all other playing lines are marked with paint or non‑toxic, non‑burning chalk or other white material.
Home base is a five‑sided slab of white rubber. It is a 3.2cm square with two corners removed. This means one edge is 3.2cm long, two adjacent side are 21.5cm and the remaining two sides are 30.48cm and set at an angle to make a point.The
base is fixed in the ground level with the ground surface.
First, second and third bases are marked by white canvas bags or rubber covered bags, attached to the ground. The first and third base bags are entirely with the infield. The second base bag is centred on second base. The bags are 38.1cm square and filled
with soft materials.
The pitching mound is a 5.49m circle, centre of which is 18.39m from the rear of home plate. The pitcher’s plate is a rectangular slab of white rubber, 61cm by 15cm. It is set in the ground so that the distance between the pitcher’s
plate and home base (the rear point of home plate) is 18.39m.
The following are the minimum facility requirements for all levels of Little League and Junior League baseball under Baseball WA:
Australian Baseball Official Australian Baseball Rules 7th Edition 2014. Baseball WA Little League/Junior League Club-ball By-laws 2014/2015. Little League Western Australia
The information in this guide is general in nature and cannot be relied upon as professional advice concerning the design of, or marking out for, sporting facilities and playing areas. No assurance is given as to the accuracy of any information contained in this guide and readers should not rely on its accuracy. Readers should obtain their own independent and professional advice in relation to their proposed sporting activity.
Do not submit enquiries with this form.