How to Improve Swimming Speed in a Crowded Public Pool

Swimming speed is stroke length multiplied by stroke rate. Nothing else. Most swimmers try to get faster by pulling harder, which raises drag and shortens the stroke, and they end up slower while working more. Fix drag first, then count your strokes, then use the walls. And be honest about the pool: a crowded lane with no pace clock and a swimmer stopping every length in the middle of the wall will hold you back more than any technical fault. Choosing the right pool and the right hour is a training decision, not a convenience one. This is written for people who already swim continuous lengths and want to be quicker, in the ordinary public pools most of us actually use.

Fix Drag Before You Add Power

Drag rises sharply with speed. Push harder into a bad body position and the water takes most of what you gave it. Three things create nearly all the avoidable drag in an adult freestyle:

1. Low hips. Usually caused by lifting the head to breathe, or looking forward rather than down. Press the chest gently, look at the bottom of the pool, and let the hips come up.
2. Crossover. The hand entering across the centre line makes the body snake. Enter in line with the shoulder.
3. A wide, scissoring kick. Kicking from the knee opens the legs like a parachute. Kick from the hip, small and fast, ankles loose.

Spend four weeks on these before you buy anything. Nothing in this article will make you as fast as fixing your hips.

Measure, With Nothing but a Wall

Swim four lengths of twenty-five metres at your normal pace. For each, count your strokes and take your time. Stroke count tells you how far you travel per stroke. Time tells you how fast. Added together, they give a crude efficiency score that moves when your efficiency moves — and it is the single most useful number a self-coached adult can track. A lower count with a slower time is gliding, not progress. A faster time with a much higher count is thrashing. Both must move in the right direction together.

Which Lever to Pull

What you observe	What it means	What to train
Low stroke count, slow time	Long but lazy — gliding, waiting	Raise tempo. Short sprints against a watch.
High stroke count, slow time	Spinning — slipping water, no purchase	Catch and pull work. Sculling.
Good count, fades after 100m	Aerobic limitation, not technique	Threshold sets on a tight interval.
Fast first 15m, dies at the wall	Pacing problem	Race-pace work with full recovery.
Fine in the middle, slow overall	Losing time at the walls	Turn practice and streamlined push-offs.

The Walls Are Free Speed

In a twenty-five metre pool you touch a wall every twenty seconds or so. A tidy turn with a streamlined push-off is faster than swimming. A sloppy turn — breathing into the wall, standing up, pushing off on the surface — hands time away on every single length. Push off every wall on your side, arms locked overhead, head hidden between the biceps, and hold that line until you slow to swimming speed. Then kick. Then pull. A warning attaches. Do not turn underwater push-offs into breath-holding practice. Prolonged or repeated breath-holding, especially after hyperventilating, causes shallow-water blackout — a sudden, silent loss of consciousness with no warning and no visible struggle. It kills experienced swimmers. Never do underwater distance work without a lifeguard watching you specifically, never push through the urge to breathe, and never make a game of it.

The Pool Is Part of the Problem

This is the part nobody writes about. If you are stopping every length to let somebody past, or dodging a swimmer doing breaststroke down the middle, you cannot train intervals. If there is no pace clock, you cannot hold an interval anyway. If the lane is four people wide with no speed sorting, you will spend the session negotiating rather than swimming. So: go early. The first hour after opening is calmer, cooler and emptier than any other part of the day, and it is worth reorganising a morning for. Find a pool with a visible pace clock. Sit in the lane you belong in, not the one that flatters you. If your nearest pool is unusable at the hours you can attend, the second-nearest pool is the better pool. ActiveSG publishes lane hours and facility details for every public complex, and swimming near me will help you find one.

Common Mistakes

• Pulling harder as the first response to being slow. It raises drag and shortens the stroke.
• Living in the paddles. They amplify whatever your catch already does, including the bad parts, and load the shoulder.
• Gliding. Excessive glide is dead time in which you decelerate.
• Only swimming easy. Continuous laps at one pace produce a swimmer who can swim forever at one pace.
• Only swimming hard. No aerobic base, no recovery, and eventually no shoulder.
• Ignoring the walls. Free speed, left in the pool.
• Training at the busiest hour because it is convenient. Convenience is not a training variable.

Safety and Shoulders

If your shoulder hurts, stop. Swimmer’s shoulder is an overuse injury and it does not respond to pushing through. See a physiotherapist, reduce your paddle and pull-buoy volume, and check your catch — a dropped elbow loads the joint badly. Knee pain in breaststroke is the same story. Swim where a lifeguard is on duty. Speed work in a crowded lane is unsafe as well as useless. Keep a bottle on the wall — you sweat in the water and never notice. If you have a heart or lung condition, or have not trained in years, see your doctor before adding intensity.

Getting Help

Many adults find that a handful of sessions with a coach who can see them from the deck saves years of guessing. A single lesson with video feedback tends to reveal one habit that has been costing time since childhood. Both find a swimming coach near you and structured swimming course options are widely available, and adults who prefer no audience do best in private swimming lesson fees. Swimmers ready for coached training will find the find a swimming coach near you environment does much of this for them. The deeper mechanics are covered in find a swimming coach near you. For competition calendars and national programmes, Sport Singapore is the reliable starting point.

Frequently Asked Questions

How much faster can an adult realistically get?

A technically poor adult who fixes body position often finds several seconds per 50 metres within a couple of months. A trained swimmer chasing a personal best works far harder for far less.

Should I lower my stroke count?

Only if your time holds or improves. A lower count achieved by gliding is slower swimming with better-looking numbers.

Do fins make me faster?

While wearing them, yes. They help ankle flexibility and body position. Used constantly they mask a weak kick.

How often should I train to improve?

Three sessions a week is where technical change tends to stick. Twice a week maintains.

What is a good stroke count for 25 metres?

There is no universal figure — it depends heavily on your height and arm span. Your own count, tracked over months, is the only comparison that means anything.

My pool is always packed. What do I do?

Go earlier, or go elsewhere. A pool you can actually swim intervals in is worth a longer journey.

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