Where Should You Aim in Lawn Bowls

Sep 06, 2026

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If you stand on the mat, stare directly at the yellow jack, and roll your bowl straight toward it, you will miss your target every single time.

One of the most surprising concepts for beginner lawn bowlers to grasp is that you almost never roll a bowl straight at the target. Because lawn bowls are asymmetrically shaped with an engineered bias on one side, they travel along a smooth, curved arc as they slow down. To get your bowl to stop right next to the jack, you have to aim out to the side along an imaginary straight path called the aiming line.

Whether you are playing a weekend social game or training for your first club league, mastering where to aim is the fastest way to improve your accuracy, line control, and confidence on the green. This complete guide breaks down the physics of aiming, how to locate the shoulder of the green, where to place your eyes, and how to set up your body for consistent delivery.

Why Can't You Aim Straight at the Jack?

To understand where to aim, you first need to understand how a biased bowl moves across the grass or synthetic carpet.

A lawn bowl is not weighted with lead on one side, as many people assume. Instead, it is manufactured with one side slightly shaved down or reshaped, making it asymmetrical. When you roll the bowl, it travels straight for roughly two-thirds of its journey while it has maximum forward speed. As the bowl decelerates, gravity and surface friction take over, causing the bowl to lean toward its shaved side and curve smoothly in that direction.

Because of this curved trajectory, your shot consists of two distinct components:

The Aiming Line (Line of Delivery): The initial, completely straight line along which you release your bowl.

The Arc (The Bias Turn): The gentle curve the bowl takes as it loses momentum and finishes at the jack.

If you aim straight at the jack, the bias will pull your bowl wide to the left or right, leaving your shot meters away from the head. To compensate, you must aim wide of the jack so that when the bowl finishes its curve, it finishes right on target.

How Do You Find the "Shoulder" of the Green?

In lawn bowls terminology, the shoulder (sometimes called the apex or turn-point) is the widest point of the bowl's parabolic arc. It is the exact spot on the green where the bowl stops moving away from the center line and begins its inward curve toward the jack.

Locating the shoulder requires observing three critical factors during practice or the opening ends of a match:

1. Green Speed

The speed of a bowling green is measured in seconds-specifically, how many seconds it takes for a bowl to travel 27 meters from release to stop.

Fast Greens (14 to 18 seconds): On fast, dry grass or smooth synthetic carpet, the bowl rolls easily and stays in motion longer. Because it rolls longer, the bias has more time to act, requiring a wider aiming line (often 2.5 to 3.5 meters wide of the jack).

Slow Greens (10 to 12 seconds): On heavy, wet, or plush grass, friction slows the bowl down quickly. You have to push the bowl harder, which flattens out the curve and requires a narrower aiming line (often 1 to 2 meters wide of the jack).

2. Bowl Bias Profile

Different bowl models are engineered with different bias strengths. Narrow-bias bowls (designed for indoor or fast outdoor greens) curve gently and require a narrower aim line. Wide-draw bowls (designed for slow outdoor greens) take a dramatic arc and require a wide aim line.

3. Length of the Jack

The farther away the jack is placed from the mat, the wider your aim line must be. A short jack at 23 meters requires a tighter aiming point than a long jack positioned near the ditch line at 35 meters.

What Visual Markers Should You Aim At?

Staring at a spot on the open grass 20 to 30 meters away can trick your eyes and lead to inconsistent releases. To maintain accuracy, experienced bowlers use distinct visual target points closer to themselves or along the boundary line.

Option A: Grass Markers (Near Aiming)

Look down your intended line of delivery about 3 to 5 meters in front of the mat. Find a small, natural visual anchor-such as a slightly discolored blade of grass, a tiny weed patch, or a small spot on the carpet.

Advantage: Focusing on a close target reduces physical anxiety and makes it much easier to align your body and arm swing.

Option B: Bank & Boundary Markers (Far Aiming)

Extend your imaginary aiming line past the jack all the way to the rear ditch or club wall. Look for a ditch boundary peg, a wall number, or a stationary object in the background that sits directly along your straight line of delivery.

Advantage: Using a fixed background point gives you a clear visual track when stepping onto the mat.

Golden Rule of Focus: Whichever visual marker you choose, lock your eyes onto that spot from the moment you step onto the mat until your bowl has been released and travels past your marker. Never switch your eyes back to the jack mid-delivery!

How Should You Align Your Body on the Mat?

Aiming in lawn bowls is not just a mental calculation; it is a physical alignment routine. If your eyes are pointing wide but your body is set up straight toward the jack, your arm will naturally pull the bowl off line.

To ensure your delivery matches your visual aim point, follow this mechanical setup sequence on the mat:

Step 1: Set Your Anchor Foot

Place your anchor foot (your right foot if you are right-handed, or left foot if you are left-handed) on the mat so that it points directly along your line of aim, not toward the jack.

Step 2: Square Your Hips and Shoulders

Rotate your body so your hips and shoulders are perfectly perpendicular (at a 90-degree angle) to your aiming line. This ensures your arm can swing freely back and forth like a clock pendulum without hitting your leg or twisting at the waist.

Step 3: Step Along the Aiming Line

As you bend your knees and step forward with your non-anchor foot during delivery, make sure your foot steps directly along the aiming line. Stepping across your body (crossing your feet) causes your arm to pull inward, causing narrow shots.

Step 4: Follow Through

When you release the bowl low over the grass, keep your delivery arm and hand moving smoothly forward along your aiming line. Finish with your palm facing upward toward your visual aim point.

How Do You Adjust When You Miss Your Line?

Even seasoned club champions miss their aim line during a match. The key to fixing your shots is learning how to read your mistakes and make immediate tactical corrections on your next turn.

What Your Bowl Did What Happened How to Fix It on Your Next Shot
Crossed the center line in front of the jack You aimed too narrow (inside your line). Pick an aim point 30–50 cm wider on the green.
Stayed wide and never reached the jack You aimed too wide (outside your line). Narrow your aim point slightly toward the center line.
Finished wide but had the right line curve Your aim line was good, but you rolled with too much speed. Keep the exact same aim line and soften your delivery power.
Crossed the jack but finished far behind it Your aim line was good, but you delivered with too little weight. Keep the same aim line and add slightly more arm momentum.

 

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