Wrist Position in Bowling: Cupped, Flat or Broken?

Your wrist position in bowling – what your wrist does in the moment the ball leaves your hand – shapes how many revolutions the ball gets, how it hooks and how easy your release is to repeat. There are three basic positions: cupped, flat and broken. Each has its uses, and knowing them gives you a concrete way to work on your release.

The three wrist positions in bowling

Cupped wrist

In a cupped wrist, the palm is bent slightly towards the inner forearm, as if you were holding a bowl of soup. The fingers stay behind and slightly under the ball for longer, so they can give it more rotation at the release.

A cupped wrist increases revolutions, the ball picks up the lane earlier and enters the pins at a steeper angle. That is useful on medium to heavy oil. Many high-rev bowlers, the so-called crankers, cup their wrist. The cost: the position takes strength and is harder to hold on every shot. If the cup is there at the start but gone at the release, the result is inconsistency rather than more hook.

Flat wrist

A flat or firm wrist is the neutral position: the hand sits behind the ball and the wrist is straight, neither bent forwards nor backwards. It produces a smoother ball reaction, which helps when the ball already turns sharply at the back of the lane.

A flat wrist is easier to repeat and needs less strength. That matters because the USBC recommends practising only rev rates that you can repeat and use – a position you can hold on every shot is worth more than a stronger one you cannot.

Broken wrist

In a broken wrist, the back of the hand is bent back towards the outside of the forearm and the palm opens. The fingers lose leverage, the ball gets fewer revolutions and it rolls straighter.

When this happens unintentionally – for example because the wrist gives way under the weight of the ball – it is one possible reason why a ball hooks less than expected. Used deliberately, a weaker wrist has its place: it is used mainly for spares, especially on dry lanes, when the ball should go as straight as possible.

How wrist position affects rev rate and hook

The further your fingers stay behind and under the ball at the release, the more rotation they can give it. A cupped wrist therefore tends towards more revolutions and a stronger hook, a flat wrist towards a moderate, controllable reaction, and a broken wrist towards fewer revolutions and a straighter path.

Wrist position is also one of the factors that separate bowling styles. Strokers usually play with fewer than 300 revolutions per minute, tweeners with around 300 to 370 and crankers with more than 400. These are styles, not levels of skill – there are professionals in every group. If you want more revs, read our guide to increasing your rev rate; how the wrist fits into the whole release is covered in bowling release techniques.

A strong wrist does not make up for everything else: if the thumb does not leave the ball cleanly or the arm swing wanders, the wrist alone will not fix it.

Wrist supports

For bowlers who want to hold a cupped or firm wrist but cannot yet keep it on every shot, wrist supports are an option. They are worn on the forearm and hand and hold the wrist at a set angle. Some are designed to prevent a broken wrist, others as training aids that help you learn the position.

A common approach is to use a support in practice so your body learns the position, and then to wean yourself off it. Keep in mind that a rigid support fixes one position for every shot, so you cannot change your wrist between strike and spare shots.

Wrist supports are generally allowed: the USBC rules regulate devices on the ball, not on the bowler's arm. On the PBA's national tour, however, rigid wrist supports with braces made of metal or plastic have not been allowed since January 2023. More on models and use: bowling wrist supports.

Finding the right wrist position for your game

There is no position that is right for everyone. A professional with a deep cup has trained it for years; a recreational bowler forcing an extreme cup that they cannot hold adds new errors.

• Start with a firm, flat wrist and build a release you can repeat.
• Film your delivery from behind and check whether your wrist keeps its position from the top of the backswing through the release. How to set it up: bowling video analysis.
• If the wrist gives way, work on that first – for example with a support in practice.
• Once your release is reliable, try a slight cup and watch whether the ball reaction stays consistent.

If your ball wobbles on the way down the lane, the wrist is one of the first things to check: how to fix a wobbly release.