Pin Up vs. Pin Down Bowling Ball Drilling: What’s the Difference—and When Do You Need Each?
If you’ve ever heard someone say “I want it pin up” or “drill it pin down,” they’re talking about where the pin (the small colored dot on the ball that marks the top of the core) ends up relative to your finger holes after drilling.
That pin position changes how the core wants to rotate, which affects length, hook shape, and how the ball responds downlane—especially once it hits friction.
Let’s break it down in plain English.
First: What “Pin Up” and “Pin Down” Actually Mean
Pin Up
- The pin is drilled above your finger holes (above the ring finger line).
- This typically places the pin farther from your PAP (your Positive Axis Point) than many pin-down layouts do, depending on your specs.
Pin Down
- The pin is drilled below your finger holes (below the ring finger line).
- This often places the pin closer to your PAP and changes the ball’s flare potential and transition shape.
Important note: “pin up” and “pin down” are shorthand. The real layout is based on your PAP, axis tilt/rotation, speed, rev rate, and what you’re trying to see on the lane—but pin placement is still a useful way to describe the general motion family.
How Pin Up vs. Pin Down Changes Ball Motion
Pin Up: More Length + More Downlane Pop
Pin-up layouts tend to:
- Get through the front part of the lane cleaner
- Save more energy for the backend
- Create a sharper, more defined move when the ball finds friction
What it looks like: More “skid → snap” for many bowlers (especially on medium conditions).
Best for:
- Bowlers who need help getting the ball to finish stronger
- Lanes where the fronts hook early and you need the ball to push
- When you want a ball to open the lane and create angle
- Medium oil to medium-heavy (depending on ball + surface)
Common situations where pin up is needed:
- You’re leaving flat 10s (right-handers) or flat 7s (left-handers) because the ball is losing energy too soon.
- Your ball reads the lane early and “rolls out” before it gets to the pins.
- Transition hits and you need something that stores energy better.
Pin Down: Earlier Read + Smoother, More Controlled Shape
Pin-down layouts tend to:
- Start reading the lane earlier
- Transition more smoothly from skid to hook to roll
- Create a rounder, more predictable motion
What it looks like: More “smooth arc” than a sharp flip.
Best for:
- Controlling wet/dry conditions (over/under)
- Sport patterns or tougher conditions where you need blend
- Bowlers who already have plenty of backend and want control
- When you need the ball to pick up sooner and not miss the breakpoint
Common situations where pin down is needed:
- You’re seeing the ball jump high when it touches friction.
- You’re leaving big splits because the reaction is too sideways.
- You need something that calms down the breakpoint and blends the lane.
- You bowl on conditions where consistency matters more than raw hook.
So… Which One Should You Choose?
Here’s the simplest way to think about it:
Choose Pin Up when you want:
- Cleaner through the fronts
- More backend motion
- More angle and continuation
Choose Pin Down when you want:
- Earlier read
- Smoother motion
- More control and predictability
The Biggest Mistake: Picking a Layout Without Matching Surface + Bowler Specs
Layout matters—but surface and your fit/release matter just as much.
Two bowlers can drill the “same” pin-up layout and get totally different reactions because of:
- Rev rate vs. ball speed
- Axis tilt and rotation
- PAP differences
- Lane surface and oil pattern
- Ball coverstock strength and surface prep
That’s why the best drilling choice comes from matching:
- What you want the ball to do
- What the lanes are doing
- How you throw it
Quick Cheat Sheet (Easy Reference)
Goal Better Choice More backend and pop Pin Up Earlier, smoother read Pin Down Control wet/dry Pin Down Create angle and open the lane Pin Up Stop the ball from jumping Pin Down Help the ball finish Pin Up
Final Word: The “Right” Layout Is the One That Matches Your Game
Pin up and pin down aren’t “better vs. worse.” They’re tools.
If you have any questions please don’t hesitate to contact us at bowlersdepotlargo.com
