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Welcome to Bowling's Best and Most Comprehensive Technical Resource!

Ready to improve your bowling and have your best season yet? From in-depth instructional articles to the world's best bowling ball testing and review program, we've got your game covered from all angles.

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Troubleshooting and Fixing Thumb Exit Problems – Part 2
Grinding It Out at the USBC Women’s Championships
When Striking Shouldn’t Be the Focus
Robot vs. Coach – Part 2
Visualizing Oil Patterns in 3D – Part 2
Coach, I’ve Got a Question! – August 2025
One Elite Frame at a Time
One Elite Frame at a Time

Bowling Ball Reviews

Ebonite The One Ovation

Ebonite The One Ovation

The One Ovation uses a hybrid coverstock that allows it to pick up more in the midlane than the pearlized cover on The One Reverb. All the balls in Ebonite's...

DV8 Mantra Solid

DV8 Mantra Solid

The DV8 Mantra Solid is the second ball to use the asymmetrical Mantra weight block. This design provides an RG of 2.498", a total differential of 0.047", and an intermediate...

Hammer Black Widow Tour V1

Hammer Black Widow Tour V1

The Black Widow Tour V1 is the latest lower differential Tour-branded bowling ball for Hammer. We have seen Tour versions in the Web, Envy, and Effect lines starting in 2018,...

Hammer Maximum Effect

Hammer Maximum Effect

The Hammer Maximum Effect uses the same asymmetrical Huntsman core design that was previously found in the Effect and Special Effect. This low RG (2.470"), medium-high differential (0.050"), and high...

Roto Grip RST Hyperdrive Pearl

Roto Grip RST Hyperdrive Pearl

The RST + AI asymmetrical core design returns in Roto Grip's new RST Hyperdrive Pearl. This ball pairs this large-flaring weight block with the new U-R1 Pearl coverstock. It is...

Motiv Primal Ghost

Motiv Primal Ghost

Motiv's new Primal Ghost is the second fusion between the Primal line and another ball. In 2023, we saw the Primal Shock combine the Impulse V2 weight block with the...

Track Theorem Solid

Track Theorem Solid

The Theorem Solid is the third ball in the Theorem line for Track. This ball uses the same MC2 Asym core shape as the previous two Theorems and pairs it...

Featured Articles

Using Urethane Effectively

Using Urethane Effectively

By Tyrel Rose

Should I be using a urethane ball? It's a question that many bowlers find themselves asking, given how popular urethane has become at the highest levels of the sport. At...

An Introduction to Axis Rotation and Axis Tilt

An Introduction to Axis Rotation and Axis Tilt

By Bill Sempsrott

Almost every day, I feel like I see or hear something that is completely incorrect about axis rotation or axis tilt. Sometimes, people just mix up the two terms and...

Troubleshooting and Fixing Thumb Exit Problems

Troubleshooting and Fixing Thumb Exit Problems

By Tyrel Rose

One of the most complicated issues to fix in bowling is the concept of “clearing the thumb." This refers to how consistently your thumb exits the ball as part of...

Keep Spare Shooting Simple

Keep Spare Shooting Simple

By Juha Maja

What makes a good spare shooter? Many people will consider it as someone who makes no more than one open per game. At the beginning level, this is a very...

The Fundamentals of Target Line Adjustments

The Fundamentals of Target Line Adjustments

By Bill Sempsrott

There are dozens of possible adjustments that we as bowlers can make to change where and how our bowling balls are entering the pocket. The first adjustment we typically learn—usually...

The 10 Exercises That Every Bowler Should Do

The 10 Exercises That Every Bowler Should Do

By Heather Sterner

Over the years, I think the most common question to pop up in my inbox is, “What exercises should I do to improve my bowling game?” I have always struggled...

Kegel Training Center

One Frame at a Time

Bowling Unleashed

Tyrel Rose Remote Coaching

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