Best Weighted Baseballs for Throwing to Increase Pitch Velocity and Arm Strength
Weighted baseballs are essential training tools for pitchers and throwers aiming to enhance throwing velocity, arm strength, and pitching mechanics. Using weighted balls can accelerate performance improvement by providing resistance and enabling targeted muscle development. Below is a summary table highlighting some of the best weighted baseball sets currently available on Amazon, selected for their durability, weight range, and training benefits.
| Product | Brand | Weight Range | Pack Size | Durability |
|---|---|---|---|---|
| GoSports 2.8 inch Weighted Training Baseballs | GoSports | 16 oz each | 6 Pack | Durable, ideal for hitting and pitching |
| Thorza Weighted Baseballs for Throwing | Thorza | 6 oz to 12 oz | 4 Pack | Official baseball material, highly durable |
| SYNGUCK Weighted Baseballs for Throwing | SYNGUCK | 4 oz to 12 oz | 6 Pack | Leather construction, long-lasting |
| VeloU Weighted Balls for Baseball 6 Ball Set | VeloU | 3.5 oz to 20 oz | 6 Pack | Withstands up to 18,000 throws |
| SunNordic Plyometric Weighted Baseball Set | SunNordic | 3.5 oz to 16 oz | 6 or 9 Pack | Durable PVC shell with iron sand fill |
GoSports 2.8 Inch Weighted Training Baseballs – 6 Pack

The GoSports Weighted Training Baseballs include six 16-ounce balls, each with a 2.8-inch diameter designed for both baseball and softball players. This set supports athletes at all skill levels, helping build strength and enhance hitting and throwing mechanics. Coaches favor these balls as an essential tool for refining batting and pitching fundamentals. Their weight provides immediate feedback for improving form and technique, making them ideal for increased arm conditioning and power development.
Thorza Weighted Baseballs for Throwing – 4 Practice Balls

Thorza offers a set of 4 weighted baseballs ranging from 6 oz up to 12 oz designed to increase pitch velocity and arm strength. Constructed with the same materials as official baseballs and featuring red double stitching, these weighted balls replicate the official game ball’s look and feel. Their durability ensures prolonged use through countless training sessions. This range allows customized training programs to systematically build fastball speed and overall throwing power.
SYNGUCK Weighted Baseball Set – 6 Different Weights

SYNGUCK’s 6-pack weighted baseball set features six balls weighing 4, 6, 7, 9, 10, and 12 ounces, offering a progressive training experience. Each ball is made with genuine leather and reinforced with colorful double stitching for durability and an attractive finish. This set targets velocity enhancement and arm strength while maintaining the feel of traditional baseballs. The variety of weights supports gradual arm conditioning to reduce injury risk while maximizing throwing performance.
VeloU Weighted Balls for Baseball – 6 Ball Set

The VeloU weighted baseball set provides six balls ranging from 3.5 oz to a heavy 20 oz, ideal for developing maximum arm strength and increasing throwing velocity. Built to last, these plyometric training balls can endure up to 18,000 throws on various surfaces including concrete and wood, making them suited for intense and frequent training sessions. This durability combined with the progressive weight range makes it a comprehensive tool for strength conditioning and pitching velocity enhancement.
SunNordic Plyometric Weighted Baseball Set with Training Band

SunNordic’s set includes 6 plyometric weighted baseballs varying in weight from 3.5 oz up to 16 oz, plus a 15-pound baseball training band and a carry bag. The balls feature iron sand filling and a soft, inflatable PVC shell with surface seams for a realistic feel and enhanced grip. Suitable for all skill levels, this set helps improve arm strength, velocity, pitching speed, and overall conditioning while the included training band aids in warming up and injury prevention.
Buying Guide: How To Choose The Best Weighted Baseball For Throwing
Weighted baseballs are an important part of a thrower’s training regimen, but selecting the right set involves considering several key factors to maximize benefits and ensure safety.
Weight Range and Progression
Choose weighted baseball sets offering a diverse range of weights starting from light balls (around 3.5-6 oz) to heavier options (up to 20 oz). This allows gradual resistance training, reducing injury risk while enhancing arm strength and pitching velocity incrementally.
Material and Durability
Durability plays a major role since training balls endure repeated high-velocity throws. Look for balls constructed with official materials like leather or high-quality synthetic covers and reinforced stitching. Plyometric balls with resilient shells can also offer extended use on various surfaces.
Size and Feel
Weighted baseballs should closely resemble the size and feel of official baseballs to maintain proper throwing mechanics. Larger or smaller balls might compromise technique, so ensure diameter is comparable to regulation baseballs (~2.9 inches or 73mm).
Training Goals
Define your training objectives—velocity increase, strength building, or arm conditioning—to choose the appropriate weighted balls. Heavier balls aid strength development, while lighter balls are useful for velocity and mechanics drills. Sets combining different weights provide versatile training options.
Additional Accessories
Some sets include training bands or carry bags to facilitate warm-ups and convenient transport. These extras can enhance overall training experience and help with injury prevention.
Grip and Seams
Balls with textured surfaces and pronounced seams improve grip during throws, especially under sweaty or wet conditions. This leads to safer, more effective training sessions.
Choosing the best weighted baseball set tailored to your specific skill level and training needs is essential for maximizing throwing strength, velocity, and arm health. Consider the range of weights, durability, and realistic feel as priorities in your decision.
