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Beginner Swim Workout Plan: 4 Weeks in a 25 m Pool

If you can swim a few lengths of freestyle but have no idea how to turn that into a training routine, this plan is for you. You do not need to be fast. You need to swim regularly without finishing every session exhausted.

Who this plan is for

An adult in good health who can swim at least 25 metres without stopping, even slowly and even with a breather mid-length. If you cannot yet, start with lessons and come back. If you have heart, breathing or joint problems, check with your doctor first.

How to read a swim workout

Swim sets are written in shorthand. These are the terms you will see everywhere.

Length. One crossing of the pool. In a 25 m pool a length is 25 m and there and back is 50 m. Some people call the round trip a "lap", others call each length a lap, so this plan uses metres only.

Repeat. A distance you swim and then repeat. "4 x 50 m" means four times 50 metres, with a pause between each.

Rest. The pause between repeats, in seconds. "4 x 50 m, 30 seconds rest" means: swim 50 m, hold the wall for 30 seconds, go again. Rest lets you catch your breath and restart with your technique in order.

Pace per 100 m. How long you take to swim 100 metres. If you swim 50 m in 1 minute 15 seconds, your pace is 2 minutes 30 seconds per 100 m. Do not chase a number at first. Swim at an effort where you could say a short sentence at the end of a length.

Equipment. A kickboard is held with straight arms in front of you to train your legs. A pull buoy goes between your thighs and floats your legs so you work only your arms.

The plan: 4 weeks, 3 sessions

Three sessions a week with at least one day off between them (for example Monday, Wednesday, Friday). If three is too much, do the first two and skip the third. Every session opens and closes with 100 m easy, already included in the totals.

Week 1

  • Session A (about 400 m): 100 m easy freestyle; 4 x 25 m freestyle, 30 seconds rest; 4 x 25 m kick with kickboard, 30 seconds rest; 100 m easy.
  • Session B (about 400 m): 100 m easy; 6 x 25 m freestyle, 30 seconds rest; 2 x 25 m kick with kickboard, 30 seconds rest; 100 m easy.
  • Session C (about 450 m): 100 m easy; 3 x 50 m freestyle, 40 seconds rest; 4 x 25 m kick with kickboard, 30 seconds rest; 100 m easy.

Week 2

  • Session A (about 500 m): 100 m easy; 4 x 50 m freestyle, 30 seconds rest; 4 x 25 m kick with kickboard, 30 seconds rest; 100 m easy.
  • Session B (about 500 m): 100 m easy; 8 x 25 m freestyle, 20 seconds rest; 2 x 50 m with pull buoy, 30 seconds rest; 100 m easy.
  • Session C (about 550 m): 100 m easy; 5 x 50 m freestyle, 30 seconds rest; 100 m of your choice (backstroke or freestyle), easy; 100 m easy.

Week 3

  • Session A (about 600 m): 100 m easy; 3 x 100 m freestyle, 40 seconds rest; 4 x 25 m kick with kickboard, 30 seconds rest; 100 m easy.
  • Session B (about 600 m): 100 m easy; 6 x 50 m freestyle, 25 seconds rest; 100 m with pull buoy; 100 m easy.
  • Session C (about 650 m): 100 m easy; 2 x 150 m freestyle, 45 seconds rest; 4 x 50 m (25 m kick, 25 m freestyle), 30 seconds rest; 50 m easy.

Week 4

  • Session A (about 700 m): 100 m easy; 4 x 100 m freestyle, 40 seconds rest; 4 x 25 m kick with kickboard, 30 seconds rest; 100 m easy.
  • Session B (about 650 m): 100 m easy; 8 x 50 m freestyle, 20 seconds rest; 150 m easy.
  • Session C (about 800 m): 100 m easy; 300 m freestyle nonstop at a comfortable pace; 2 x 100 m, 40 seconds rest; 100 m with pull buoy; 100 m easy.

In every set, swim at a pace that lets you finish with the same technique you started with. If in the last metres your stroke shortens and your legs sink, add 10 or 15 seconds of rest.

Technique tips

  • Breathe out in the water. Blow bubbles through your nose or mouth with your face down, and breathe in as you turn your head. Holding your breath is the most common cause of breathlessness in beginners.
  • Neutral head. Look at the pool floor, not ahead of you. Lifting your head makes your legs sink.
  • Kick from the hips. Keep knees only slightly bent and ankles loose. A small, steady kick is enough.
  • Long stroke. Reach forward before you pull, and let your body rotate a little from side to side. Fast, short strokes are not the goal.
  • Turns. For now, touch the wall with your hand, breathe, and push off with your feet. Flip turns come later.

Safety

Do not swim alone if you are not confident: pick times when a lifeguard is on duty. Avoid long breath-holds and deep fast breathing before you push off, as these can cause blackouts in the water. If you feel chest pain, dizziness or breathlessness that does not settle, get out and speak to a doctor.

When to rest

Leave at least one day between sessions: you improve while you recover too. Some muscle tiredness in the first days is normal. Sharp or lasting shoulder pain is not: skip the session and get it checked if it stays. After week 4 you can repeat week 3 or 4 for a few weeks before increasing again.

FAQ

How often should I swim? Two sessions are already a good start; three are fine if you recover well. Regularity matters more than volume.

How long does a session last? With this plan, 30 to 45 minutes including warm-up and rests at the wall.

What do I need? A swimsuit, cap and goggles. For the drills, a kickboard and pull buoy, usually available at the pool.

Do I have to breathe every stroke? No. At first breathe when you need to, even every two strokes on the same side. A steady rhythm comes with time.

When do I move on? When you can finish week 4 with clean technique and without being exhausted. Then you can add 100 m repeats and start timing your pace.

A plan that adapts

SwimSensei builds a plan from your level, the days you train and your pool length (25, 33 or 50 m), and adapts it every week. See how it works on the SwimSensei for swimmers page and join early access.

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