Best Weighted Balls for Throwing: Top Training Sets for Velocity &Amp; Arm Strength
If you’re targeting faster throws and stronger arms, weighted balls for throwing offer a controlled way to build velocity and mechanics. This guide highlights five reliable options, each suited to different training goals—from progressive resistance for beginners to heavy balls for advanced throwers. The selections below emphasize durability, progressive weights, and clear guidance on who should choose each product.
Buyer snapshot: The table below compares the five highlighted weighted ball sets to help you quickly decide which option fits your goals and training level. All products are designed to improve throwing velocity, arm strength, and throwing mechanics through progressive resistance and sport-specific drills.
| Product | Best For | Weight Range | Notes |
|---|---|---|---|
| Weighted Baseballs 6 Ball Set — VeloU | Intermediate to advanced throwers | 3.5 oz to 20 oz | Very durable; high throw count durability |
| GoSports Plyometric Weighted Balls — Pro Set | Developers of power and mobility | 100g to 450g | Varied weights for dynamic drills |
| GoSports 3.82″ Weighted Softballs | All skill levels for batting/throwing | Approximately 16 oz | Softball-specific training |
| ZELUS 6-Piece Weighted Baseball Set | Structured progression at home | 3.5 oz to 35 oz | High variety with seams for realism |
| THORZ A 6-12 oz Sets (Thorza) | Youth to pro players | 6, 8, 10, 12 oz | Official feel with game-like grip |
Weighted Baseballs 6 Ball Set: Durable & Progressive

Best for athletes who want a wide progression range in a single set, this VeloU option features weights from 3.5 oz to 20 oz. The training focus is on increasing arm strength and velocity through controlled resistance and high durability. It’s suitable for players who throw from multiple distances and need a durable product that can withstand many sessions. The data indicates resilience to 18,000 throws and resistance to tough training surfaces, making it a solid pick for long-term training plans.
Who this is best for: Intermediate to advanced throwers seeking a broad weight range without swapping multiple balls. Why selected: The extensive weight range supports stepwise progression and velocity development while emphasizing durability. Caution: Heavy 20 oz balls may be challenging for beginners; start lighter to avoid overexertion.
GoSports Plyometric Weighted Balls — Pro Set

This six-ball set covers weights from 100 g to 450 g, giving a compact, diverse progression for dynamic strength and mobility training. The varied weights support targeted drills that can improve throwing mechanics and velocity, making it a strong pick for players who want a structured, multi-weight kit for on-field or gym sessions. The weight variety is ideal for progressive overload as you advance through drills.
Who this is best for: Players focusing on installing powerful mechanics while refining mobility. Why selected: The included weight variety supports both strength and technique-focused routines; best for a training plan that alternates between quick throws and controlled drills. Caution: Mixing metric and imperial weights can be confusing—verify weight conversions before use.
GoSports 3.82 Inch Weighted Softballs — Hitting & Pitching

These 16 oz weighted softballs are designed for both hitting and pitching training. They’re sized similarly to standard softballs, which makes them a practical option for players who want to translate weighted-ball work into real-game form. They’re suitable for beginners and experienced players who want to reinforce fundamentals while increasing strength and throwing mechanics.
Who this is best for: Beginners to intermediate players seeking a straightforward weight targeted at hitting and pitching practice. Why selected: The official 3.82 inch diameter aligns well with standard softball training, promoting comfortable grip and realistic throwing cues. Caution: The 16 oz weight may be heavy for long warm-up sessions; gradually build volume to avoid shoulder fatigue.
ZELUS 6-Piece Weighted Baseball Set

This six-ball set covers from 3.5 oz up to 35 oz, offering a comprehensive progression for strength and velocity work. The 3.5 oz ball starts light for warm-ups, while the 35 oz ball targets explosive power development. The PVC construction with raised seams provides a realistic baseball feel, helping players simulate true release and grip mechanics during training.
Who this is best for: Athletes who want a structured, multi-weight progression at home or in a small gym. Why selected: The wide weight spectrum supports a progressive training plan across skill levels. Caution: Heavier balls (35 oz) require proper technique to avoid shoulder stress; ensure a balanced program and adequate recovery between heavy sessions.
SUPERIORNET 6 Pack Poly Practice Baseballs & Softballs

Featuring six weights (100 g, 150 g, 225 g, 340 g, 450 g, 580 g), this set emphasizes color coding for quick identification during drills. The heavy-duty PVC shell and iron-sand filling provide durability and stable weight, helping players develop velocity and throwing accuracy. The colorful design also aids in tracking progress during drills and coach-guided sessions.
Who this is best for: Coaches and players who use color-coded training routines for tempo and progression. Why selected: The broad weight range supports a tiered training plan, from light warm-ups to heavy resistance. Caution: Heavier weights require careful supervision to prevent improper mechanics during exercises.
Plyo Soft Shell Weighted Ball Set

The Grady’s Pitching School set includes six balls: 32, 21, 14, 7, 5, and 3.5 oz. The soft shell design emphasizes durability and repeatable performance when throwing against hard surfaces. This lineup aims to increase velocity while refining technique through controlled weight progression and consistent feedback from practice sessions.
Who this is best for: Players focusing on a practical progression grounded in velocity development. Why selected: The included weights align with a progressive plan from warm-ups to max effort throws. Caution: The lighter 3.5 oz ball may require careful handling to avoid overdoing early-stage drills; start with proper form first.
Thorza Weighted Baseballs — Velocity Training

Thorza offers a set of four weighted baseballs in 6, 8, 10, and 12 oz, designed to provide a progressive program for velocity building. The balls use a standard baseball feel with game-like grip and seams to ensure throwing mechanics resemble real-game conditions. They are suitable for youth to professional levels seeking a structured, scalable approach to velocity development.
Who this is best for: Youth players and developing athletes who need a gradual increase in resistance. Why selected: The official-size feel and seam construction help translate training gains into gameplay. Caution: Avoid jumping directly to the heaviest weight without warming up and ensuring proper technique first.
Buying Guide: Key Purchase Considerations
What weight progression should I choose? Start with light balls (3.5–8 oz) for warming up and refining mechanics, then add heavier weights (12–20 oz or heavier) as your arm strength and throwing velocity improve. A multi-weight set is ideal for gradual progression.
How durable should weighted balls be? Look for PVC or similar shells with reinforced seams and a dense fill to withstand repetitive throws. Higher durability reduces replacement frequency and supports long-term training programs.
Which set fits a home gym? If you have limited space, choose a compact multi-weight set with clear weight labeling and easy transport. A carry bag can simplify storage and workouts.
Is official game feel important? For some players, realism matters. Sets with raised seams and authentic ball feel help translate training into actual game mechanics and grip.
How should I structure training with weighted balls? Use a progressive plan: warm up with lighter balls, perform throwing drills to reinforce mechanics, then integrate heavier weights for velocity-focused sessions. Include rest days to mitigate overuse injuries.
FAQ
- Do weighted balls really increase throwing velocity? Yes, with progressive resistance and sport-specific drills, they can help improve velocity and arm strength when used consistently as part of a structured program.
- What weight should beginners start with? Beginners should start with the lightest weights, typically around 3.5 oz to 7 oz, and gradually move to heavier options as form and strength improve.
- Can I use weighted balls for both throwing and hitting practice? Some sets are designed for both throwing and hitting; check the included weights and construction to ensure suitability for your planned drills.
- Are there safety concerns when using heavy weighted balls? Overuse and improper technique can lead to shoulder or elbow stress. Use proper warm-ups, correct form, and avoid overdoing heavy sessions.
- How many weighted balls should I own? A 4–6 ball set with a broad weight range is common for progressive training; more can be useful for scheduled progression and variety.
- Should I use a coach or trainer with weighted-ball training? Guidance can help ensure proper form, safe progression, and adherence to a structured program, especially for beginners.