Freestyle Swimming Technique: How to Swim Efficiently
Good freestyle technique means a long, horizontal body line, a high-elbow catch that anchors your hand in the water, and a relaxed rhythmic breath that doesn't lift your head. Formfix checks all of this from a single iPhone video and returns a 0–100 score with the #1 thing to fix in under 15 seconds.
Freestyle efficiency is about reducing drag before adding power — the fastest swimmers slip through the water, not muscle through it. This page covers what good technique looks like, the mistakes that slow you down, and how to film your stroke for analysis.
Download Formfix on the App StoreWhat good swimming freestyle form looks like
Horizontal body line
Head, hips, and heels at the surface — eyes looking down, water line at the crown of your head. Your body is a torpedo, not a barge.
High-elbow catch
The hand enters, extends, then the fingertips point down while the elbow stays high — anchoring your forearm like a paddle.
Pull through, not down
The pull travels straight back along your body line, hand passing under your hip — not pushing down or sweeping wide.
Relaxed, driven kick
A compact flutter kick from the hips with loose ankles — enough to keep your legs up, not a bicycle thrash.
Side breathing without lifting
You rotate to breathe — one goggle stays in the water — turning your head with the body roll, not lifting it.
Full body rotation
Your hips and shoulders rotate together around your spine with each stroke — rotation drives the reach and the breath.
Most common mistakes and how to fix them
Hips and legs sinking
Why it happens: Looking forward, lifting the head, or kicking from the knees drags the lower body down.
Fix it: Cue 'eyes down, press your chest.' Look at the pool floor and press your chest slightly into the water — your hips rise like a seesaw.
Lifting the head to breathe
Why it happens: Lifting instead of rotating drops the hips and breaks the stroke rhythm.
Fix it: Cue 'one goggle in the water.' Breathe with the body roll, keeping half your face in the water. Kickboard side-kick drills build the position.
Dropping the elbow on the catch
Why it happens: Pressing straight down with a straight arm slips through the water instead of anchoring.
Fix it: Cue 'point your fingertips to the pool floor.' Sculling drills at the front of the stroke teach you to feel water pressure on the forearm.
Crossing over the midline
Why it happens: The hand entering across the center of your body makes you snake through the water.
Fix it: Cue 'enter at shoulder width.' Film from the front — each hand should enter in line with its shoulder, not in front of your face.
Kicking from the knees
Why it happens: Big, bent-knee bicycle kicks create more drag than propulsion.
Fix it: Cue 'kick from the hips, loose ankles.' Vertical kicking in the deep end quickly exposes knee-driven kicks and builds the hip-driven pattern.
Short, rushed stroke
Why it happens: Turning the arms over fast with no catch or extension produces lots of effort and little distance.
Fix it: Cue 'reach and glide a beat.' Count your strokes per length — fewer strokes at the same speed means more efficiency.
How to film it for analysis
Camera angle
Side-on at the waterline from poolside shows body line, kick, and breathing. From the front of the lane shows hand entry and crossover. If you have a waterproof case, underwater side-on is the gold standard for the catch.
Distance
10–15 feet (3–4.5 m) along the lane from poolside; for underwater, hold or mount the phone 3–6 feet (1–2 m) from the swimmer's line.
Framing
Keep the phone still and film a full lap — 4+ stroke cycles. Film both above-water (poolside, propped on a kickboard or block) and, if possible, a short underwater pass in a waterproof case.
FAQ
What is correct freestyle swimming technique?
A flat body line with eyes down, a high-elbow catch that anchors the forearm, a pull that travels straight back past the hip, a compact hip-driven kick, and breathing by rotating — not lifting the head.
Why do my legs sink when I swim freestyle?
Almost always a head position problem: looking forward lifts the chest and sinks the hips. Look straight down, press your chest lightly into the water, and keep the kick compact from the hips.
How do I breathe in freestyle without swallowing water?
Rotate your head with your body roll, keep one goggle in the water, and exhale steadily underwater so the inhale is quick. Lifting the head — instead of rotating — is what breaks the rhythm and lets water in.
What is a high-elbow catch?
After your hand enters and extends, your fingertips point to the pool floor while your elbow stays near the surface — your forearm becomes the paddle. It's the difference between anchoring in the water and slipping through it.
How do I film my freestyle for a form check?
Side-on at the waterline from poolside, or underwater with a waterproof case, filming a full lap. Upload to Formfix for a 0–100 score and the #1 fix in under 15 seconds.
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