Bats

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20OZ

21OZ

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Drop

Marucci

Brand

Used

Condition

Alloy

Composite

Hybrid

Bat Material

Kid Pitch (9YO-13YO)

Age Group

2 3/4"

Barrel

2025

2024

2023

2022

2021

2019

2015

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CAT9

## Marucci CAT 9 Bat


  

The Marucci CAT 9 baseball bat is part of Marucci's highly respected CAT series, known for its balance, performance, and durability. Introduced as an upgrade from the previous models, the CAT 9 incorporates new technologies and materials to provide a superior hitting experience.

  

Since its inception in 2009, Marucci has risen to prominence in the baseball industry by prioritizing direct input from professional players. This player-driven design philosophy has guided the development of some of the market's most trusted and high-performing baseball equipment. Marucci's dedication to quality and performance, coupled with its commitment to a detailed, handcrafted process, has established the brand as a favorite among players at all levels of the game.  
  

Perfect bat for: Youth players who are looking to elevate their game with superior balance, power, and performance.

  

### Key features include:

-   AZR Alloy Construction: Offers a more responsive microstructure for better feel, increased forgiveness, and enhanced performance at elevated swing speeds.
    
-   Precision-Balanced Barrel: Engineered for optimal balance, providing players with control and consistency in their swings.
    
-   Multi-Variable Wall Design: Creates an expanded sweet spot and thinner barrel walls, which help in forgiving off-center hits.
    
-   Ring-Free Barrel Technology: Eliminates dead spots in the barrel, ensuring maximum performance and solid contact throughout the bat.
    
-   Anti-Vibration Knob: Features an AV2 knob that reduces vibration, providing a better feel and minimizing hand sting on mis-hits.
    
-   Micro-Perforated Soft-Touch Grip: Ensures superior comfort and an enhanced feel, allowing for better control and reduced hand fatigue.
    
-   One-Piece Alloy Construction: Delivers a clean, consistent, traditional swing feel with built-in durability for long-lasting performance.
    

### Top competitors comparison: [Easton ADV 360](https://sidelineswap.com/shop/baseball/bats/easton/adv-360/l59709) and the [Louisville Slugger Solo](https://sidelineswap.com/shop/baseball/bats/louisville-slugger/solo/l7816)  
  
The rivals include the Easton ADV 360 and the Louisville Slugger Solo. The Marucci Cat 9 stands out due to its innovative AZR alloy construction, offering a unique combination of feel, performance, and durability that is tailored specifically for the developing player. While the Easton ADV 360 is prized for its 360-degree barrel tuning for precision across the entire barrel and the Louisville Slugger Solo is known for its ultra-balanced swing weight for ultimate swing speed, the Cat 9's multi-variable wall design and precision balancing mean it excels in providing young hitters with a powerful, yet manageable tool to enhance their game.

### Progression of the Marucci CAT 9 Baseball Bat:

  

Here is a list that details the progression of this series, highlighting the main features and advancements with each new model.

  

**2017 - [CAT7](https://sidelineswap.com/shop/baseball/bats/marucci/cat-7/l7247) & CAT7 CONNECT**

-   CAT7 and CAT7 Connect are introduced, featuring the upgraded AZ4X alloy for improved performance.
    
-   CAT7 has a one-piece alloy construction, while CAT7 Connect offers a two-piece hybrid design with a carbon composite handle.
    
-   Both models feature an increased sweet spot and an upgraded anti-vibration knob (AV2).  
      
    

**2019 - [CAT8](https://sidelineswap.com/shop/baseball/bats/marucci/cat8-2/l7709), CAT8 CONNECT, CAT COMPOSITE**

-   CAT8, CAT8 Connect, and CAT Composite are launched.
    
-   The barrels of CAT8 and CAT8 Connect are constructed using the new AZ105 alloy for higher performance at the sweet spot.
    
-   Introduction of SDX EXT connection technology for a stiffer connection and improved energy transfer.
    
-   CAT Composite, a two-piece composite bat, is introduced with SDX EXT and ring-free barrel construction.  
      
    

**2021 - [CAT9](https://sidelineswap.com/shop/baseball/bats/marucci/cat9-2/l163499) and CAT9 Connect**

-   CAT9 and CAT9 Connect are released with the new AZR alloy for a more responsive microstructure.
    
-   CAT9 features a 2nd Generation AV2 Anti-vibration knob and additional weight below the hands for better control.
    
-   CAT9 Connect introduces the Outer-Locking System (OLS) for an even stiffer connection and virtually zero vibrations.
    

  

### What people are saying (edited for clarity and brevity)

  

**PROS**

-   Great for kids who need to "feel the barrel" during their swing. The ball jumps off this bat well. It has never collapsed and provides enough feedback to know how you hit it. Vibration is only felt when hitting the handle.
    
-   "My 12-year-old son upgraded to a Marucci Cat 9 -5 bat from a 30" -8 bat and is hitting great with it. Although the bat is heavier, it is well-balanced and solid. Highly recommended for kids upgrading to a -5."
    
-   Bought the Cat 9 BBCOR bat for my 13-year-old son. It's well-balanced and has good pop for a one-piece. Vibration-resistant knob helps with miss hits. My son loves it and is hitting the ball well.
    

**CONS**

-   Good bat for my 10-year-old, but didn't hold up well in New England cold spring. Dead after one AAU season despite hard hits and dingers. Would have given 5 stars if it lasted longer.
    
-   My son used this bat for 1 season and it has multiple dents in it. He is 12 and weighs about 70 pounds. Thought I would get more than 1 season out of the bat.
    
-   Bought a bat for my 6-year-old son a year ago. It's good but lacks the power and balance of CATX Aluminum. Looking for sales to buy CATX.
    

  

### Certification: BBCOR

### Expert Notes ([Tony from BatExperts](https://sidelineswap.com/batexperts))

They took the same design from the CAT8 and strengthened the CAT9 with a stronger alloy to avoid any denting issues. It's a very good, durable bat. The CAT9 will be a bit heavier than the CAT8; it's a better bat for stronger kids. The first generation of the CAT9 came out with a gray, black, and red paint job. The second generation they called the Past Time, which was red, white, and blue. It's the same bat, but a different paint job. The second bat was more popular simply because of how it looked. Everyone likes the American Flag with its Stars and Stripes.  
  

Pop: ⭐⭐⭐⭐

Durability: ⭐⭐⭐⭐

Vibration: ⭐⭐⭐⭐

  
**Balanced** or End loaded?

CAT9 Composite

## Marucci CAT9 Composite Baseball Bat

The Marucci CAT 9 Composite bat represents a significant advancement in Marucci's approach to building bats for players who prefer the feel and performance of fully composite construction. Unlike its alloy counterparts within the CAT series, the CAT 9 Composite provides a massive barrel and balanced swing. With a philosophy deeply rooted in the insights and needs of actual players, Marucci’s Cat 9 Composite bat showcases the brand’s proficiency at using cutting-edge materials to elevate the performance of players at any age.

**Perfect bat for:** Both contact and power hitters who don’t mind a barrel-heavy bat.


### Key features include:



* **Multi-Directional Composite Material:** Creates an ultra-responsive barrel that offers a significant performance advantage across the entire hitting surface.
* **Maximum Barrel Length:** Provides a larger sweet spot and enhances the potential for off-center hits to still travel far and fast.
* **SDX LT Connection:** Reduces vibration on contact, delivering a more comfortable hitting experience without sacrificing power on swing-through.
* **Ring-Free Barrel Construction:** Eliminates dead spots for a more consistent performance and allows players to take full advantage of the bat's technical design.
* **Micro-Perforated Soft-Touch Grip:** Ensures comfortable, secure handling even in rigorous play conditions, reducing hand fatigue and enhancing control.
* **Balanced Swing Weight:** Optimizes bat speed and control, offering a perfect blend for hitters who value precision as much as power.


### Top competitors comparison: [DeMarini CF Zen](https://sidelineswap.com/shop/baseball/bats/demarini/cf-zen-2020/l8432) and the [Easton ADV 360](https://sidelineswap.com/shop/baseball/bats/easton/adv-360/l59709)

The Marucci Cat 9 Composite shines with its use of multi-directional composite materials, enabling a level of responsiveness and barrel performance that's hard to match. While the DeMarini CF Zen is praised for its consistently strong performance across the barrel and the Easton ADV 360 offers revolutionary 360-degree barrel tuning, the Cat 9 Composite distinguishes itself with a superior balance between speed, power, and comfort, courtesy of its meticulous engineering and vibration-dampening connection technology. This makes the Cat 9 Composite a top choice for youth players aiming to elevate their game with a bat that delivers fluidity and force in equal measure.


### Progression of the Marucci CAT 9 Composite Bat:

Here is a list that details the progression of this series, highlighting the main features and advancements with each new model.

**2017 - [CAT7](https://sidelineswap.com/shop/baseball/bats/marucci/cat-7/l7247) & CAT7 CONNECT**



* CAT7 and CAT7 Connect are introduced, featuring the upgraded AZ4X alloy for improved performance.
* CAT7 has a one-piece alloy construction, while CAT7 Connect offers a two-piece hybrid design with a carbon composite handle.
* Both models feature an increased sweet spot and an upgraded anti-vibration knob (AV2). 


**2019 - [CAT8](https://sidelineswap.com/shop/baseball/bats/marucci/cat8-2/l7709), CAT8 CONNECT, CAT COMPOSITE**



* CAT8, CAT8 Connect, and CAT Composite are launched.
* The barrels of CAT8 and CAT8 Connect are constructed using the new AZ105 alloy for higher performance at the sweet spot.
* Introduction of SDX EXT connection technology for a stiffer connection and improved energy transfer.
* CAT Composite, a two-piece composite bat, is introduced with SDX EXT and ring-free barrel construction. 


**2021 - [CAT9](https://sidelineswap.com/shop/baseball/bats/marucci/cat9-2/l163499), CAT9 Connect, [CAT9 Composite](https://sidelineswap.com/shop/baseball/bats/marucci/cat9-composite-3/l164870)**



* CAT9 and CAT9 Connect are released with the new AZR alloy for a more responsive microstructure.
* CAT9 features a 2nd Generation AV2 Anti-vibration knob and additional weight below the hands for better control.
* CAT9 Connect introduces the Outer-Locking System (OLS) for an even stiffer connection and virtually zero vibrations.


### What people are saying (edited for clarity and brevity)

**PROS**



* It had a great balance and weight, which made it easy to swing and hit the ball with precision.
* Great pop and appearance. My son loves it. Easy to get good exit velo.
* Huge sweet spot and very durable. Has a great feel and sound to it. 

**CONS**



* A few hits scuff paint off bat.
* When it doesn’t get hit on the sweet spot it doesn’t go very far and stings.
* It's a lilttle pricey and i already broke it... but i am going to buy a new one


### **Certification**: USSSA, USA, and BBCOR


### Expert Notes ([Tony from BatExperts](https://sidelineswap.com/batexperts))

The CAT9 Composite comes in two designs across two generations. The first, released in 2021, is gray, black, and red. And then it came out in red, white, blue, and gray. The first model was a more powerful, higher-performing bat. It has more exit velocity and is a hotter bat than the 2nd gen. Very durable, with very little breakage. Marucci's, across the board, have been good bats in terms of quality; they seem to last. Whether you're a power hitter or a small kid, the CAT9 Composite does very well. 


Pop: ⭐⭐⭐⭐⭐

Durability: ⭐⭐⭐⭐

Vibration: ⭐⭐⭐⭐

 
<span style="text-decoration:underline;">**Mid-Balanced**</span> or End loaded?

CAT9 Connect

## Marucci CAT9 Connect Baseball Bat

The Marucci CAT 9 Connect is an evolution within the Marucci CAT series, specifically designed to cater to hitters who prefer a slightly end-loaded feel and the additional power that comes with a two-piece bat construction. This model integrates Marucci’s latest technology to enhance performance, reduce vibration, and provide a comfortable hitting experience. 

By focusing intently on the needs and feedback of players, Marucci has cultivated a reputation for creating bats that deliver unmatched performance and durability. The Cat 9 Connect combines state-of-the-art technology with a deep understanding of what players truly need to succeed on the field.

**Perfect bat for:** Competitive high school and college players who demand a bat that offers a more end-loaded feel for maximum power—without sacrificing swing speed.


### Key features include:



* **Two-Piece Hybrid Construction:** Combines a carbon composite handle with an AZR alloy barrel for a reduced vibration on contact and a more comfortable, controlled swing.
* **Outer-Locking System (OLS):** Marucci's exclusive connection technology enhances stiffness and energy transfer by creating a tighter connection between the barrel and handle.
* **AZR Alloy Barrel:** Engineered for increased responsiveness and durability, offering a better feel and more forgiveness with every swing.
* **Power-Loaded Barrel:** Tailored for power hitters, providing an end-loaded swing weight that enhances force without compromising bat speed.
* **Micro-Perforated Soft-Touch Grip:** Ensures superior tack and cushion for improved handling and reduced hand fatigue during long batting sessions.
* **Professionally Inspired Handle:** Features a removable taper and an ergonomic knob shape for improved control and comfort.


### Top competitors comparison: [DeMarini Voodoo](https://sidelineswap.com/shop/baseball/bats/demarini/voodoo/l7333) and the [Louisville Slugger Select PWR](https://sidelineswap.com/shop/baseball/bats/louisville-slugger/select-pwr/l164317) 
 
The Marucci Cat 9 Connect sets itself apart with its Outer-Locking System (OLS), providing an unmatched blend of stiffness and energy transfer. While the DeMarini Voodoo is known for its two-piece hybrid design that emphasizes a balanced swing for hitters who want both power and speed, and the Louisville Slugger Select PWR offers a three-piece design for enhanced swing control and reduced vibration, the Cat 9 Connect specializes in delivering a potent combination of speed, power, and precision, making it a formidable choice for players aiming for home runs.


### Progression of the Marucci CAT 9 Connect Baseball Bat:

Here is a list that details the progression of this series, highlighting the main features and advancements with each new model.

**2017 - [CAT7](https://sidelineswap.com/shop/baseball/bats/marucci/cat-7/l7247) & CAT7 CONNECT**



* CAT7 and CAT7 Connect are introduced, featuring the upgraded AZ4X alloy for improved performance.
* CAT7 has a one-piece alloy construction, while CAT7 Connect offers a two-piece hybrid design with a carbon composite handle.
* Both models feature an increased sweet spot and an upgraded anti-vibration knob (AV2). 


**2019 - [CAT8](https://sidelineswap.com/shop/baseball/bats/marucci/cat8-2/l7709), CAT8 CONNECT, CAT COMPOSITE**



* CAT8, CAT8 Connect, and CAT Composite are launched.
* The barrels of CAT8 and CAT8 Connect are constructed using the new AZ105 alloy for higher performance at the sweet spot.
* Introduction of SDX EXT connection technology for a stiffer connection and improved energy transfer.
* CAT Composite, a two-piece composite bat, is introduced with SDX EXT and ring-free barrel construction. 


**2021 - [CAT9](https://sidelineswap.com/shop/baseball/bats/marucci/cat9-2/l163499) and CAT9 Connect**



* CAT9 and CAT9 Connect are released with the new AZR alloy for a more responsive microstructure.
* CAT9 features a 2nd Generation AV2 Anti-vibration knob and additional weight below the hands for better control.
* CAT9 Connect introduces the Outer-Locking System (OLS) for an even stiffer connection and virtually zero vibrations.


### What people are saying (edited for clarity and brevity)

**PROS**



* My son enjoyed using. It did not cause any pain and had decent hitting power.
* This bat is a great buy with a lot of pop and no stinging. It has a fast swing and is well-balanced, improving confidence. Kids will love it for little league. 
* Well balanced, no shock, decent pop. My 9 year old likes the added two inches compared to his previous bat. Likes that it doesn’t rattle his hands. Very pleased for the price 

**CONS**



* I purchased this bat for my 9-year-old son to use in little league. Sadly, it did not last long and got cracked in the same weak spot as many other bats.
* The bat snapped in 1/2 while my 9 year old son was hitting.
* My 8 year old son hit very well with it until is snapped in half.


### **Certification**: BBCOR


### Expert Notes ([Tony from BatExperts](https://sidelineswap.com/batexperts))

The CAT9 Connect is going to be in the same market as the Select Power, The Goods, and the Voodoo. It's a two-piece hybrid alloy barrel with a composite handle. It's a top-three bat for me. Very good performer and very popular. Just a great overall product. 


Pop: ⭐⭐⭐

Durability: ⭐⭐⭐⭐

Vibration: ⭐⭐⭐⭐

 
Balanced or <span style="text-decoration:underline;">**End loaded**</span>?

CAT9 Pastime

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