Baseball Bats
There isn't anything in your cart.
You just added a bat to compare, you currently have 1 bats to compare.

2018 Mizuno Covert -9 USA Baseball Bat: YBB18COV9

2018 Mizuno Covert -9 USA Baseball Bat: YBB18COV9
$249.95 With Free Shipping Both Ways
Reviews for the 2018 Mizuno Covert -9 USA Baseball Bat: YBB18COV9
2 Product

  • Pop (2 reviews)
  • General Feel (2 reviews)
  • Durability (2 reviews)
  • Vibration (2 reviews)

“Great Bat”

by (parent)
  • Overall Rating
  • Pop
  • General Feel
  • Durability
  • Vibration
Was this review helpful ? 0 0

Pros:  This bat is a well constructed bat and it can go up against any other mid-to high price ranged bat. I was looking for something that will hopefully last three years and I believe that this bat combination of weight and length to weight ratio will be perfect for my son until he ages out of little league.

Cons:  I want to use this forum to state that I believe that this new bat standard is going to take the fun out of little league baseball. There will be less home runs and more infield plays. Plan on low scoring games. I guess we have to sacrifice action for safety. I will save my son's 1.15 bat for travel ball next fall.

“Excellent sweet spot and pop, but no ping”

by (parent)
  • Overall Rating
  • Vibration
  • Durability
  • General Feel
  • Pop
Was this review helpful ? 0 0

Pros:  This bat has an excellent sweet spot and grest pop.

Cons:  Wheny son hits a pitch, it sounds like someone snaps there fingers, but who cares.

Questions and Answers for the 2018 Mizuno Covert -9 USA Baseball Bat: YBB18COV9

Got a question about the 2018 Mizuno Covert -9 USA Baseball Bat: YBB18COV9 ? Ask our team of experts, and they will respond within 24 hours.

Ask A Question OR
Please wait, loading.
Your search did not return any results. If you searched for a specific term, please broaden your search. If you have already done this and still cannot find what you're looking for, please submit your question and we'll get back to you within 24 hours. Thanks!
145544 Click to show/hide answer

Is this bat end loaded or more balanced?

The 2018 Mizuno Covert -9 USA Baseball Bat (YBB18COV9) has a balanced swing weight.

Taylor Expert
143539 Click to show/hide answer

How does this bat compare to the other hybrid alloy bats like the Voodoo and Beast X?

Unfortunately, this 2018 Mizuno Covert -9 USA Baseball Bat (YBB18COV9) doesn't have a ton of reviews at the time of your question. Because of that, it would be hard to give a true comparison in regard to customer reviews. However, the essential aluminum barrel and composite handle design will be very similar between the Voodoo USA (-10) and the Beast X USA (-10). One thing that will differ on this Covert is that it features a -9 length-to-weight ratio while the other two bats have -10 length-to-weight ratios.

Ben Expert
143421 Click to show/hide answer

What is the weight of this bat? I know it's a 29/20 but the weight after the paint and grip?

The 2018 Mizuno Covert -9 USA Baseball Bat: YBB18COV9 will come in roughly 0.7 ounces heavier than the listed weight on the bat.

Cameron Expert
143001 Click to show/hide answer

Does it show the USA 2018 stamp?

This 2018 Mizuno Covert -9 USA Baseball Bat (YBB18COV9) will feature the USA Baseball stamp.

Ben Expert
Submit Your Bat Question

What do you want to know about the 2018 Mizuno Covert -9 USA Baseball Bat: YBB18COV9?

2018 Mizuno Covert -9 USA Baseball Bat: YBB18COV9
About Mizuno

Mizuno USA, Inc.'s roots stem from its parent company Mizuno Corporation. Mizuno Corporation was established in Osaka, Japan in 1906 by Rihachi Mizuno. Today, Mizuno USA is located in Norcross, GA and continues to manufacture and distribute golf, baseball, softball, running, track & field and volleyball equipment, apparel, and footwear for international markets. Since their founding in 1906, Mizuno has taken special pride and pleasure in being able to participate in the exciting world of sports an din making the entire globe the stage for their activities. Each and every person at M.... read more Batting Gloves Batting Gloves

The Batting gloves are perfect to use for games or practice. Having a comfortable, perfect fit for you is something we at want you to have with your batting gloves. If when you receive the batting gloves, tried them out and they do not fit or work perfectly for you, you may return them within two weeks for an exchange or full refund whether you have used them or not. They are extremely comfortable and durable. Our batting gloves feature an adjustable wrist strap so they can be adjusted to fit nice and snug on your hand for a comfortable fit. Our batting gloves are made from Cabretta Sheepskin leather for optimal flexibility and comfort. The mesh backing around the knuckles allows you to move and flex your fingers freely without adding stress to the leather. This not only allows for a better grip on the bat, but it also makes the gloves more durable as it eliminates much of the stress on the leather that can cause tears. The mesh is also vented to allow moisture and heat to be directed away from the fingers, never compromising your grip on the bat. The palm of the batting glove is constructed of premium grade sheepskin leather. This leather gives a great grip while maintaining it's flexibility. The Batting Glove was designed with you, the player, in mind. Free Shipping!

  • Free Shipping!
  • Made from Cabretta Sheepskin Leather
  • Mesh Backing on Knuckles - Improves Flexibility and Durability
  • Superior Feel
  • Velcro Strap for a Snug, Flexible Fit
  • Vented to Allow Moisture and Heat to Escape
Back to Buying Options
Bat Buying Options
Place your order within the next 51 Hours & 17 Minutes and your order will ship out Monday.
Choose a Length & Weight Option:
Let me know when this bat comes in

Please note that popular bats often become available in small quantities and will sell out again quickly.

Which size(s) do you want to be notified about?

2018 Mizuno Covert -9 USA Baseball Bat: YBB18COV9
Need any accessories? Batting Gloves Batting Gloves for $19.99

 See details
Payment Options Include:
Bat Trade-in Program
Trade in your bat to receive a Gift Card

Have an old bat lying around?

Check out which models are eligible for trade-in and verify that the bat you have is eligible. You will receive an e-gift card once the bat is received by

Read more about the bat trade-in program.
Bat Features
  • -9 Length To Weight Ratio
  • 2 5/8 Inch Barrel Diameter
  • Free Shipping!
  • 2-Piece Link Construction Combines Ultimate Performance & Vibration Reduction
  • Balanced Swing Weight For Increased Swing Speeds
  • Black Onyx Carbon Composite Handle Provides Extra Stiffness For Reduced Energy Loss
  • CorTech Adjusts Wall Thickness To Create A Massive Sweet Spot
  • Full Twelve (12) Month Manufacturer's Warranty
  • Hot Metal Alloy Barrel Delivers Maximum Performance & Sound
  • Optimized End Cap Extends The Sweet Spot For More Pop
  • Speed-Helix Bat Grip Adds To Both Comfort & Control
  • Two-Piece, Hybrid Baseball Bat
  • New USA Baseball Certified Stamp
  • Approved For Play In AABC, Babe Ruth, Cal Ripken, Dixie Youth, Little League, & Pony

Description for 2018 Mizuno Covert -9 USA Baseball Bat: YBB18COV9
This model comes with the USA Baseball stamp and it is approved for play in AABC, Babe Ruth, Cal Ripken, Dixie Youth, Little League, and Pony!

Mizuno baseball bats are the result of passion and innovation combined with an endless drive to be better. For the 2018 season, the Covert series is ready to take the top spot as the best hybrid design on the market. It all starts with the HotMetal alloy barrel that is brought together with the Black Onyx Carbon composite handle by the patented 2-Piece LINK technology to dramatically reduce negative vibrations, maximize performance, and reduce energy loss when impacting at higher ball speeds. Inside of the barrel, the Covert utilizes what's called the CorTech technology which helps create a superior sweet spot for more plate coverage than ever before. On one end, an optimized end cap delivers great sound on contact while providing incomparable pop. On the other end, each model comes pre-wrapped with a Speed-Helix Grip that is designed to improve both comfort and control. Mizuno: Driven By Athletes. Crafted To Win!

This 2018 Mizuno Covert USA Baseball Bat (YBB18COV9) features a drop 9 length to weight ratio, a 2 5/8-inch barrel diameter, and the USABat standard stamp. Begin operation better batting average and order one of these Mizuno baseball bats today with free shipping and a full one (1) year manufacturer's warranty. Don't forget, with our 24/7 customer service, we're here from click to hit!
Customer Testimonial

Ease,price,selection,quick service and delivery of product....I'll be back

- Alan , Queen Creek, AZ
Shop With Confidence
Shop With Confidence at
Purchasing your next bat from is safe and secure! All information is encrypted and transmitted without risk using a Secure Sockets Layer (SSL) protocol.
Need some help?
Try out our Bat Coach
Didn't find what you were looking for? Try using our Bat Coach, it will ask you a few simple questions and display only the bats that meet your requirements.
Bat Properties
Approved For:USA Bat
Barrel Diameter:2 5/8"
Bat Type:Baseball
Length to Weight Ratio:- 9
Material:Half and Half
Price:$200 - $299.99