How to Improve Your Bodyline in Backstroke

If you’ve ever watched elite Backstrokers like Ryan Murphy glide effortlessly down the pool, one thing stands out immediately — they hardly look like they’re working.

Their hips stay high. Their body remains long and balanced. Their kick seems effortless. Most importantly, they travel in a nearly perfect straight line.

Then there’s what most swimmers experience.

One lap they’re drifting into the lane rope. The next they’re snaking across the lane, lifting their head, or wondering why their legs keep sinking toward the bottom of the pool.

Here’s the truth.

Most Backstroke problems aren’t caused by your pull or your kick alone. They’re caused by one thing:

Poor Bodyline.

Everything in Backstroke revolves around maintaining a long, stable position from your fingertips to your toes. Your head position affects your hips. Your arm entry influences your balance. Your kick supports your rotation. Even small mistakes can create extra drag that slows you down every stroke.

The good news? Bodyline is a skill you can learn.

In this guide, we’ll break down the biggest mistakes swimmers make, explain WHY they happen, and show you the coaching cues and drills we use at Swim Like A Fish to help swimmers move straighter, faster, and with far less effort.

Why Bodyline Matters in Backstroke

When swimmers think about swimming faster Backstroke, they often focus on developing a stronger pull or a faster kick. While both are important, neither should be the starting point.

The best Backstrokers first learn how to maintain an efficient Bodyline.

Bodyline is the foundation of the entire stroke. When your body stays long, balanced, and connected from your fingertips to your toes, your kick becomes more effective, your pull generates more propulsion, and your rotation feels smooth instead of forced.

When that Bodyline breaks down, everything else has to work harder.

Every inch your hips sink, every unnecessary wiggle through your torso, and every hand that crosses behind your head creates additional drag. Instead of moving you forward, part of every stroke is spent fighting the water. Many swimmers try to solve this by pulling harder or kicking faster, but those efforts rarely fix the real problem.

This is one of the reasons elite Backstrokers make the stroke look effortless. They aren’t simply producing more power — they’re creating less resistance.

When swimmers lose their Bodyline, they usually notice several problems at the same time:

• Their hips begin to sink.
• Their kick becomes less effective.
• They drift across the lane.
• Their shoulders work harder than they should.
• Their stroke feels much more tiring.

The interesting part is that these problems rarely start where swimmers think they do. Most Bodyline issues can be traced back to three common areas: head position, hand entry, and core control. Fix those fundamentals first, and the rest of your Backstroke often improves naturally.

As Bodyline breaks down, drag increases and every part of the stroke becomes less efficient. When the head returns to a neutral position, the core stays engaged, and the kick stays connected to the arm stroke, the hips naturally rise, allowing the swimmer to move through the water with much less resistance.

Backstroke Head Position: Your Steering Wheel

If there’s one part of your Backstroke that influences everything else, it’s your head position.

Many swimmers think their arms or kick determine whether they swim straight. In reality, your head acts like the steering wheel of your stroke. Even small movements can affect your balance, rotation, and overall Bodyline.

One of the most common mistakes is allowing the head to rotate with the shoulders. As swimmers roll from side to side, they often let their entire body—including their head—rotate together. While this may feel natural, it causes the body to snake through the water instead of rotating around one stable axis. Other swimmers lift their chin to see where they’re going, creating the same loss of balance.

Instead, your body should rotate under a quiet, stable head. Your shoulders rotate. Your hips rotate. Your head stays still.

A simple cue we often use is to imagine you’re lying comfortably on a pillow. Keep your neck relaxed, your chin neutral, and your ears in the water while looking straight toward the ceiling—or the sky if you’re swimming outdoors.

Many swimmers instinctively lift their head to avoid getting water on their face. Unfortunately, this causes the hips to sink, forcing the kick to work much harder just to maintain body position. The goal isn’t to force your head down, but to let it rest naturally while your body rotates underneath it.

Signs Your Head Position Needs Work

Your head position may be affecting your Bodyline if you notice that you:

• Drift into the lane rope.
• Feel your hips or legs sinking.
• Wiggle from side to side during the stroke.
• Develop tired or overloaded shoulders.
• Frequently look around to stay in your lane.

These are rarely separate problems. More often, they’re signs that your head position is disrupting your entire Bodyline.

How to Swim Straight in Backstroke

One of the most common questions swimmers ask is:“Why can’t I swim in a straight line during Backstroke?”

You push off perfectly, only to drift toward the lane rope a few strokes later. Some swimmers even zigzag across the lane without realizing it until they bump into the lane line.

Many people assume they simply need better landmarks. While ceiling lights, lane ropes, and backstroke flags can help, they aren’t the real solution.

Swimming straight starts with swimming symmetrically.

If one arm crosses over more than the other, one side pulls harder, or your head tilts slightly, your body naturally begins changing direction. The same thing happens if one pull is stronger or shorter than the other. Over an entire length of the pool, these small differences quickly add up, causing you to drift farther off course.

Instead of constantly correcting your direction, eliminate the movements that cause you to drift in the first place.

Focus on these fundamentals:

• Keep your head centered and relaxed.
• Enter each hand at shoulder width.
• Rotate evenly to both sides.
• Maintain a steady flutter kick.
• Keep your core engaged so your hips stay near the surface.

A simple way to check your alignment is to swim a few lengths alongside the lane rope. It provides immediate feedback without forcing you to constantly turn your head.

If you’re swimming outdoors, where there aren’t ceiling lines to follow, body awareness becomes even more important. Use the backstroke flags, distant landmarks, and your peripheral vision for guidance, but resist the temptation to look around every few strokes. A stable head position is still the best way to stay on course.

Many swimmers are surprised by how much they naturally drift. With practice, you’ll begin recognizing those small alignment errors before they affect your full stroke.

Don’t Crossover Behind Your Head

One of the biggest mistakes we see in Backstroke isn’t obvious to the swimmer — it’s where the hand enters the water.

Many swimmers reach directly behind their head or even cross over the centerline of their body. While it may feel like they’re getting a longer stroke, the opposite actually happens.

Crossing over disrupts your Bodyline. Instead of rotating smoothly, your shoulders twist, your hips begin to sway, and your legs often fishtail behind you. Every correction creates extra drag and makes it harder to swim in a straight line.

Instead, let each hand enter the water just outside your shoulder. Think of your shoulders as railroad tracks — each arm should stay on its own track throughout the recovery and entry.

This creates better balance, improves rotation, and puts your hand in a stronger position to begin the pull. It also reduces unnecessary stress on the shoulder by allowing the larger muscles of the back to do more of the work.

Signs You’re Crossing Over

You may be crossing over if you notice that you:

• Snake from side to side.
• Drift across the lane.
• Feel your hips swinging left and right.
• Develop fatigue in one shoulder.
• Frequently bump into the lane rope.

If you’re unsure, have a coach record your stroke from the front or underwater. Many swimmers are surprised to discover that what feels straight is actually crossing several inches over the centerline.

Why Your Hips Sink in Backstroke

One of the first questions swimmers ask is:

“Why do my legs keep sinking?”

The answer usually isn’t that your legs are heavy. It’s that something higher up in your body is out of position.

Your body works like a seesaw in the water. If your head lifts, your hips naturally drop. If your core relaxes, your body bends in the middle. Once your hips sink, your legs follow, and your kick has to work much harder just to maintain body position.

This is why telling swimmers to simply “kick harder” rarely solves the problem. A stronger kick can help, but it can’t compensate for poor body alignment.

Instead, focus on building a Bodyline that supports your kick by:

• Letting your head relax naturally in the water.
• Keeping your core engaged throughout the stroke.
• Maintaining a steady flutter kick.
• Rotating your body as one connected unit.
• Avoiding downward pressure at the beginning of the pull.

When these pieces work together, your hips stay closer to the surface, allowing your kick to generate propulsion instead of lifting sinking legs. Your core’s job isn’t just to make your abs stronger — it’s to connect your upper and lower body so they move together as one unit.

As you rotate, ask yourself one question:

Can I keep the same long Bodyline throughout the entire rotation?

If your hips sink, your head moves, or your body bends in the middle, you’ll immediately feel your balance disappear. That’s exactly what this drill is designed to fix.

Good rotation protects your Bodyline — it doesn’t interrupt it.

How Your Backstroke Kick Supports Bodyline

Many swimmers think of the flutter kick as the engine of Backstroke. While it certainly contributes to propulsion, its first job is even more important—it stabilizes your Bodyline.

Every kick helps support your hips, balance your rotation, and keep your body aligned throughout the stroke. When the kick becomes inconsistent, your hips begin to sink, your body starts swaying, and your pull has to compensate for the extra movement.

One of the most common mistakes is kicking from the knees instead of the hips. Instead, let the movement begin at the hips with only a slight bend at the knees, keeping your ankles relaxed so your feet can naturally whip through the kick.

Keep your kick narrow, continuous, and rhythmic. Big kicks rarely make you faster—they usually create more resistance.

Focus on Consistency, Not Power

Many swimmers only kick harder when they feel their hips sinking. By then, it’s already too late.

Instead, develop a steady kick that supports your Bodyline from beginning to end. If your kick becomes larger or more frantic as you swim farther, it’s usually a sign that your Bodyline is breaking down—not that your legs are getting tired.

By removing the arms from the stroke, it’s much easier to feel whether your kick is supporting your body position or allowing your hips to sink.

Backstroke Pull and Arm Movement

Once you’ve established a strong Bodyline, your pull becomes much more effective.

Many swimmers try to swim faster by pulling harder. Elite Backstrokers create more speed by putting their hand in the right position before applying power.

Enter the water with your pinky first, just outside your shoulder, and avoid crossing over your head. As your hand begins the catch, your body should already be rotating toward that side, allowing the larger muscles of your back to contribute to the pull.

Think about anchoring your hand while your body moves past it, rather than simply pulling your hand backward. When your pull, rotation, and Bodyline work together, you’ll generate more propulsion with less effort.

Want to dive deeper into the catch and pull? Read our guide on 3 Secrets to a Great Backstroke Pull, where we break down hand position, the catch, and common mistakes that limit propulsion.

Backstroke Breathing: Don’t Forget to Breathe

Because your face stays above the water, many swimmers assume breathing doesn’t matter in Backstroke. Ironically, it’s one of the strokes where swimmers hold their breath the most.

Instead, establish a relaxed breathing rhythm that matches your stroke. Many swimmers naturally inhale as one arm recovers and exhale as the opposite arm recovers. Your breathing should support your rhythm—not interrupt it.

If you catch yourself holding your breath, relax your neck and shoulders. A relaxed swimmer almost always maintains a better Bodyline.

Backstroke Swimming Technique for Beginners

If you’re new to Backstroke, it’s easy to feel like everything is happening at once. The key is not trying to fix every part of your stroke at the same time.

Instead, focus on mastering these fundamentals first:

• Keep your head relaxed and looking straight up.
• Maintain one long Bodyline from your fingertips to your toes.
• Keep your hips near the surface with an engaged core.
• Kick continuously from the hips.
• Enter each hand at shoulder width without crossing over.

Once these habits become automatic, your pull, rotation, and timing will improve naturally.

Remember, Backstroke isn’t about fighting to stay on the surface—it’s about learning to balance on the water.

As you rotate, ask yourself:

• Is my head staying still?
• Are my hips staying near the surface?
• Is my kick continuous?
• Am I rotating as one connected body?

If you can answer yes to all four, you’re building the foundation for efficient Backstroke.

Common Mistakes That Destroy Your Bodyline

Most Backstroke mistakes come back to one thing — losing your Bodyline.

Watch for these common errors:

• Lifting your head: Causes your hips and legs to sink, creating more drag.
• Crossing over during hand entry: Makes your body fishtail and drift across the lane.
• Kicking from the knees: Creates resistance instead of propulsion.
• Losing core connection: Causes your body to bend instead of rotating as one unit.
• Over-rotating: Rotate your body around your head — not your head with your body.

Correcting these mistakes will help you swim straighter, reduce drag, and make every stroke more efficient.

Coach’s Takeaway

Fast Backstroke isn’t about having the strongest pull or the biggest kick. It’s about maintaining a Bodyline that allows every part of your stroke to work together.

Everything starts with Bodyline. A quiet head keeps the hips high. High hips allow the kick to support your rotation, and a connected kick gives your pull the foundation it needs to generate power.

Focus on protecting your Bodyline every stroke instead of fixing one technique mistake at a time. As your alignment improves, you’ll swim straighter, feel smoother, and often become faster without working any harder.

Want Personalized Feedback on Your Backstroke?

Understanding technique is the first step, but seeing your own stroke is where real improvement happens.

Our Video Analysis Packages provide personalized feedback on your Bodyline, head position, rotation, and hand entry, along with drills and coaching cues tailored specifically to your stroke.

Looking for a complete training plan? Our 90-Day Backstroke Training Program and Virtual Swim Lessons will help you build a stronger Bodyline, improve efficiency, and swim faster with confidence.

Every great Backstroker starts with a strong Bodyline. Now it’s your turn.