Recommended Guidelines for Junior Players
Racquet
Measuring for Proper Junior Racquet Length
Have your child hold the racquet in a forehand grip, standing upright, with their arm and racquet positioned on the outside of their leg. If the racquet tip touches the ground, the length is too long.
Length | Ages | Ball Color |
21” | 4-6 | Red |
23” | 6-8 | Red/Orange |
25” | 8-9 | Orange/Green |
26” | 9-10 | Green |
Upgrading to an Adult Racquet
I recommend that juniors upgrade to a midplus headsize ranging from 95-105 square inches. This headsize will help reinforce proper stroke mechanics and footwork.
If a junior upgrades to an oversize headsize (107 square inches or larger), they can often get away with “off-center” hits that they could not pull off with a smaller headsize. This can lead to lazy positioning and footwork.
The proper weight can vary based on the child’s size and strength. To facilitate stability against hard-hitting opponents, your child should use the heaviest racquet that he/she can handle, without affecting proper swing mechanics.
Ages | Unstrung weight |
9-10 | 9.0 oz. |
11-12 | 9.5 oz. |
13-14 | 10.0 oz. |
14+ | 10.5+ oz. |
Grip

Measuring for Grip Size
- Measure hand from the middle of your palm (usually the second lateral line to the top of the ring finger).
- Overall circumference of the grip (including any overgrip) should not exceed the player’s measured grip size.
- For more racquet head speed: Grip size should be smaller than the player’s measured size.
- You’ll notice that my hand measures 4-1/2” but I found that a 4-5/16” (between 4-1/4” and 4-3/8”) works best for me.
Strings
- Synthetic Gut
- For younger players that can’t break their strings within 4 months.
- Restring every 6 months for yellow ball and 12 months for green ball unless the strings break before then.
- These strings provide a softer feel and more power with less effort.
- Hybrid (Polyester/Synthetic Gut)
- For pre-teenage players that can break synthetic gut strings within 6-8 weeks.
- These strings provide longer life but go dead faster than synthetic gut.
- Restring within 8-10 weeks if the strings do not break before then.
- Has a stiffer feel and less power than synthetic gut.
- Requires more racquet head speed from the player, thus enhancing the production of a “heavier ball” with more spin and control.
- The synthetic gut can start off as the main strings. If the string breaks within 6-8 weeks, then the polyester could be switched to the mains.
- Polyester
- For teenage players (or younger) that can break hybrid strings within 2-3 weeks.
- These strings provide the longest life but go dead faster than hybrids.
- Restring within 4 weeks if the strings do not break before then.
- Has a stiffer feel and less power than hybrids.
- Requires even more racquet head speed from the player, thus enhancing the production of a “heavier ball” with more spin and control.
- Since it is a stiff string, it can cause arm/shoulder injuries and should only be used by a player that has a larger, more aggressive swing style at a higher competitive level.
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