Top 5 Mistakes Adult Improver Swimmers Make

If you are an adult improver swimmer, you are in a very common stage of the journey. You are no longer a beginner, but you are not yet swimming efficiently enough to feel relaxed, fast, or consistent. The good news is that progress usually comes from fixing a few key habits rather than trying to overhaul everything at once.

The five mistakes below are the ones I see most often from adult swimmers who already have some confidence in the water but want to swim better. None of them are unusual, and all of them can be fixed with the right approach, a little patience, and focused coaching.

1. Trying to Swim Hard Before Swimming Well

Many adult improvers think the answer is to push harder. They increase effort, kick more aggressively, and try to “power through” lengths, but the result is usually more fatigue and less control. Swimming is very different from land-based fitness because poor technique becomes more expensive as intensity rises.

The better approach is to slow the stroke down and build efficiency first. When your body position, timing, and balance improve, speed often appears as a by-product rather than something you force.

If you want structured help with this stage, 1-to-1 swimming coaching can make a big difference because the session is built around your specific movement patterns, not a generic class plan.

2. Ignoring Body Position

One of the biggest limits on adult improvers is body position in the water. If your hips sink, your head lifts, or your core is loose, you create drag that makes every stroke harder than it needs to be. You may feel like you are working hard, but much of that effort is being wasted.

Good body position starts with a long, relaxed line through the water. Your head should stay neutral, your body should rotate smoothly, and your kick should support balance rather than fight the stroke. When these pieces come together, the water feels less heavy almost immediately.

This is one of the most common reasons adults benefit from technical feedback. What feels straight or flat to you is often not what is actually happening. A coach can spot those small faults quickly and help you correct them before they become habits.

3. Breathing Too Late or Too Tense

Breathing problems are one of the clearest signs that an adult swimmer is not yet fully comfortable with their stroke. Some people hold their breath too long, some lift their head forward, and others tense up so much that they lose rhythm every time they turn to breathe. The result is a stroke that feels rushed and unstable.

The main fix is to keep the breath simple and calm. Exhale continuously underwater, then take a quick breath when you turn, without lifting the head. Breathing should support the stroke, not interrupt it.

If this is your main issue, how to breathe in front crawl is worth reading alongside this post. That article goes deeper into timing, body position, and drills that make the breathing pattern feel much more natural.

4. Doing Too Much Without Enough Feedback

Adult improvers often put in plenty of effort but do not always get the right kind of feedback. They repeat the same laps, hope the stroke improves on its own, and assume that more swimming automatically means better swimming. In reality, repetition without correction can simply make inefficient habits stronger.

The most productive sessions usually include a clear focus. That might be body position, catch mechanics, breathing, or turn work, but it should be one main thing at a time. When you make one small improvement and repeat it consistently, you usually get more progress than from just swimming longer.

This is where adult swimming lessons can save a lot of time. A good coach can identify the one change that will unlock the next level for your stroke instead of giving you five corrections at once.

5. Expecting Progress to Feel Linear

Many adult swimmers assume improvement should happen in a straight line. They expect each session to feel better than the last and become frustrated when one workout feels awkward or one week seems slower than the previous one. In swimming, that is completely normal.

Progress often comes in small steps. A cleaner turn, a more relaxed breath, or a better kick may not feel dramatic in the moment, but they add up over time. Some weeks you will feel like everything clicks; other weeks you will feel clumsy again. That does not mean you are going backwards.

The best way to stay on track is to measure the right things. Focus on repeatability, comfort, stroke count, and how long you can hold form, not just pace. If you are looking for a better way to structure your sessions, our swim plan tool can help you build sessions around your level and goal.

What Adult Improvers Should Focus On Instead

Instead of trying to fix everything at once, focus on the following priorities:

  • Swim with better body position before chasing more speed.
  • Make breathing calm and regular.
  • Use shorter, more focused technical sets.
  • Get feedback from someone who can actually see your stroke.
  • Measure progress by consistency as well as pace.

Adult improver swimmers often improve faster once they stop trying to “look like” a strong swimmer and start building the habits that strong swimmers actually use. That usually means more control, less tension, and a clearer plan for each session.

When to Get Coaching Help

If you have been swimming for a while but still feel stuck, a lesson can be the fastest way to move forward. Most adult swimmers do not need a complete rebuild; they need one or two key fixes that make everything else easier. That is exactly what targeted coaching is for.

If you want personalised help, contact Swimming Class UK or book 1-to-1 coaching. If you are still building overall confidence and structure, adult swimming lessons are a good place to start.

The important thing is to keep going. Adult improver swimmers are often much closer to real progress than they think.