Triathlon Swim Technique Guide: Efficiency Over Speed

Efficient triathlon swimming technique prioritizes a long, relaxed stroke with proper body rotation and bilateral breathing over raw power or speed.

In triathlon, how you swim matters more than how hard you swim. A smooth, efficient stroke saves energy for the bike and run while still getting you out of the water in good time.

The Triathlon Swimming Mindset

Pool Swimmer vs Triathlete

The Goal: Efficient Movement

In triathlon swimming, your goals are:

1. Conserve energy for bike and run
2. Move efficiently through the water
3. Swim straight (navigation)
4. Exit ready for what's next

Body Position: The Foundation

Why Body Position Matters

Poor body position = massive drag Good body position = gliding through water

Achieving Good Body Position

Head position:

• Eyes looking slightly forward/down (45°)
• Water at hairline level
• Neutral neck (like standing posture)

Core engagement:

• Light tension in abs
• Prevents hips from sinking
• Creates stable platform

Hip position:

• Near surface
• Follows head position
• Rotate, don't rock

Legs:

• Light, compact kick
• From hips, not knees
• Don't let them drag

The Downhill Swimming Feeling

Imagine swimming slightly downhill:

• Press your chest down gently
• This raises your hips
• Creates streamlined position
• Reduces drag significantly

The Freestyle Stroke Cycle

Phase 1: The Catch

What it is: Initial hand entry and setup for pull

Key points:

• Enter fingertips first
• Shoulder-width entry
• Extend arm forward
• Bend elbow, fingertips point down
• Create "paddle" with forearm and hand

Common mistakes:

• Slapping water on entry
• Crossing centerline
• Pulling before catch is set

Phase 2: The Pull

What it is: Propulsive phase moving water backward

Key points:

• Pull water toward feet (not down)
• Maintain high elbow throughout
• Accelerate through the pull
• Hand exits past hip

Common mistakes:

• Pulling down instead of back
• Dropping elbow (inefficient)
• Short pull, not past hip

Phase 3: The Recovery

What it is: Arm moving forward above water

Key points:

• Elbow leads (high elbow recovery)
• Relaxed arm and hand
• Don't swing wide
• Set up for good entry

Common mistakes:

• Straight arm recovery
• Tight, tense muscles
• Crossing over centerline

Phase 4: The Glide

What it is: Brief extension before next stroke

Key points:

• Full arm extension
• Body streamlined
• Momentary pause
• This is where you rest

Longer glide = fewer strokes = less energy used

Body Rotation

Why Rotation Matters

Rotation provides:

• More powerful pull (engage lats, not just arms)
• Easier recovery (arm clears water naturally)
• Better breathing (mouth clears water)
• Reduced shoulder strain

How Much to Rotate

Rotation Timing

1. Hand enters water, body starts rotating to that side
2. Maximum rotation when arm is fully extended
3. Pull begins as body starts rotating back
4. Opposite arm enters as rotation completes

Breathing

The Triathlete's Breathing Challenge

Unlike pool swimming:

• Waves and chop
• Can't breathe toward wall
• Need to sight (head lifts)
• Must be sustainable for long duration

Bilateral Breathing

What it is: Breathing both sides (every 3 strokes)

Why it matters for triathlon:

• Navigate in any direction
• Balance stroke technique
• Adapt to conditions
• Draft on either side

If you can't do it yet:

• Practice in every session
• Start with 25m each side
• Build to full bilateral

Breathing Technique

Good breathing:

• Turn head with body rotation
• One goggle stays in water
• Breathe in the "bow wave" pocket
• Exhale continuously underwater

Common mistakes:

• Lifting head (hips sink)
• Holding breath (tense)
• Breathing too late
• Not exhaling underwater

Kicking

The Triathlon Kick Philosophy

Less is more. Kicking:

• Uses 6x more energy than arms
• Provides minimal propulsion
• Fatigues legs needed for bike/run

Recommended Kick

2-Beat Kick

One kick per arm stroke:

• Right arm enters → left leg kicks
• Left arm enters → right leg kicks
• Minimal energy expenditure
• Maintains body position

Common Kicking Mistakes

• Kicking from knees (bicycle kick)
• Big, splashing kick
• Stiff ankles
• Kicking too hard overall

Essential Drills

Drill 1: Catch-Up

Purpose: Timing, extension, glide

How: Touch hands at front before next stroke

Focus: Full extension, patience

Drill 2: Fingertip Drag

Purpose: High elbow recovery

How: Drag fingertips along surface during recovery

Focus: Relaxed recovery, elbow leads

Drill 3: Side Kick

Purpose: Body rotation, balance

How: Kick on side, one arm extended, rotate to breathe

Focus: Stability, rotation timing

Drill 4: Single Arm

Purpose: Catch awareness, balance

How: Swim with one arm, other at side or extended

Focus: Feel the catch, body position

Drill 5: Fist Swimming

Purpose: Feel the water with forearm

How: Swim with closed fists

Focus: Using forearm as paddle

Recommended Drill Practice

Include drills in every session:

• 4-8 x 50m drill/swim
• 10-15% of total volume as drills
• Focus on one element per drill

Stroke Count

Why It Matters

Lower stroke count = more efficient

• Elite: 12-14 strokes per 25m
• Good: 14-18 strokes per 25m
• Average: 18-22 strokes per 25m
• Inefficient: 22+ strokes per 25m

How to Improve

1. Focus on full extension (more glide)
2. Complete the pull (past hip)
3. Maintain body position (less drag)
4. Improve catch (more water moved per stroke)

Counting Practice

• Count strokes every few lengths
• Aim to reduce by 1-2 per length
• Use stroke count as efficiency metric

Open Water Adaptations

Sighting

What it is: Lifting eyes to navigate

Technique:

• Lift eyes only (not whole head)
• Quick look forward
• Sight on buoy or landmark
• Return head to water immediately
• Sight every 8-10 strokes

Drafting

Legal and effective: Swimming in someone's wake

Positions:

• Directly behind (best, hardest to maintain)
• On hip (easier, still effective)

Saves 10-20% energy

Dealing with Chop

• Breathe away from waves
• Shorter, quicker stroke
• Maintain rhythm despite conditions
• Stay calm

Read more: Open Water Swimming Guide

Building Swim Efficiency

Weekly Focus Areas

Video Analysis

If possible:

• Have someone film your stroke
• Compare to efficient swimmers
• Identify one thing to fix
• Work on it for 2-4 weeks

Related Resources

• CSS Calculator - Set training zones
• Triathlon Swim Drills - Complete drill guide
• Open Water Swimming Guide - OWS skills
• Triathlon Swimming for Beginners - Getting started
• Olympic Triathlon Swim Training - Distance-specific prep