Far too often an expensive bat is purchased with the thought that the player will grow into it. This is the same false economy as buying shoes that are too large except that the damage done in terms of poor technique may not be repairable.
The recommendation of the table below are based on the recommendations of Hillerich & Bradsby (makers of Louisville bats) and recommendations from Worth Research & Development whose research, in conjunction with the University of Arizona, predicted the best bat weight for maximum hit ball speed. They note that the ideal bat weight is actually one ounce heavier than that recommended however the resultant loss of hit ball speed is offset by an increase in bat control. When testing for bat weight it was found that the best correlation was with body weight in younger children while the correlation was better to height in older children.
Along with experts overseas N.S.W.J.B.L. has been concerned at the alteration to the checks and balances of the game of baseball along with the safety issues that arise as a result of the increased acceleration which is enabled by the new technologies. These concerns are reflected in the rules for N.S.W.J.B.L. competitions. You should always check the rules for your local competitions.
AGE |
Range of height & weight for Australian males |
Recommended bat length |
Bat weight - 2 1/4
diameter |
Bat weight - 2 3/4
diameter |
10
years old |
128-148
cm |
27" - 30" |
17-18 ounce |
|
11 years old |
132-155 cm |
27" - 31" |
18-21 ounce |
|
12
years old |
137-162
cm |
up to 31" |
18-21 ounce |
|
13 years old |
142-165 cm |
up to 32" |
19-22 ounce |
22-25 ounce |
14
years old |
147-168
cm |
up to 33" |
19.5-23 ounce |
22-26 ounce |
15 years old |
152-175 cm |
up to 33" |
- |
23-27 ounce |
Older players in Baseball |
177
cm |
33" |
- |
28
ounce |
The NSWJBL bat rules for State Cup and Youth League games are:
Maximum Diameter |
Maximum Length |
Maximum Differential |
Maximum Differential |
|
Under 12 |
2 1/4 |
31 |
-10 |
Not permitted |
Under 14 |
2 3/4 |
32 |
-10 |
-7 |
Under 16 |
2 3/4 |
33 |
-10 |
-7 |