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The Ultimate Guide to Triathlon Swimming Techniques

Writer's picture: SG Sink Or SwimSG Sink Or Swim

Triathlon swimming is a unique challenge that requires endurance, efficiency, and adaptability. Unlike pool swimming, triathlon swimming takes place in open water, where athletes must navigate waves, currents, sighting, and mass starts while conserving energy for the bike and run.


To excel in triathlon swimming, you need proper stroke mechanics, breathing techniques, pacing strategies, and open water skills. This guide will help you master triathlon swimming, whether you’re a beginner or an experienced triathlete looking to improve your performance.


Why Triathlon Swimming is Different from Pool Swimming

🏊‍♂️ Key Differences in Triathlon Swimming:

Open Water Conditions – No pool walls, lane lines, or push-offs.

Sighting Required – Navigating buoys and staying on course.

Drafting Strategies – Swimming behind others to conserve energy.

Mass Starts & Crowded Swimming – Learning to manage close contact.

Energy Conservation – Swimming efficiently to save energy for cycling and running.


Since triathlon swimming is the first leg of the race, it’s crucial to start strong but not burn out—the key is efficiency over speed.


Triathlon Swimming Techniques for Maximum Efficiency

1. Perfecting the Freestyle Stroke for Triathlons

The freestyle (front crawl) stroke is the most efficient stroke for triathlon swimming because it provides the best speed-to-energy ratio.

💡 Key Technique Adjustments for Triathlon Swimming:

High Elbow Catch – Helps maximize propulsion while reducing drag.

Longer, Smoother Strokes – Avoid short, choppy strokes to conserve energy.

Stable Head Position – Look down at a 45-degree angle to reduce resistance.

Minimal Kick – Use a two-beat or four-beat kick to save energy for later.

🔥 Drill: Fingertip Drag Drill – Swim freestyle while dragging your fingertips along the water’s surface to reinforce high elbow recovery.


2. Open Water Breathing Techniques

Breathing efficiently in open water is different from pool swimming due to waves, chop, and other swimmers.

💡 Best Breathing Strategies for Triathlons:

Bilateral Breathing – Helps balance stroke symmetry and adjust for waves.

Exhale Fully Underwater – Avoid holding your breath to reduce fatigue.

High Recovery Breathing – Turn your head just enough to inhale while keeping one goggle in the water.

🔥 Drill: Head-Up Freestyle – Swim with your head above water for 10 strokes to simulate open water breathing challenges.


3. Sighting: Staying on Course Without Slowing Down

Since triathlon swimming lacks lane lines, sighting (looking ahead) is essential for staying on course.

💡 How to Sight Efficiently:

Lift Head Briefly Every 6–10 Strokes – Keep it quick to avoid disrupting your stroke.

Combine with Breathing – Turn your head slightly after sighting to take a breath.

Focus on a Distant Landmark – Look for tall, stationary objects instead of relying only on buoys.

🔥 Drill: Sighting Drill – Practice lifting your head forward every few strokes while swimming to simulate real race conditions.


4. Drafting in Triathlon Swimming: Save Energy by Swimming Smart

Drafting allows you to conserve energy by swimming behind or beside another swimmer, reducing water resistance.

💡 Best Drafting Positions:

Directly Behind Another Swimmer – Stay 6–12 inches behind their feet to reduce drag.

Beside Their Hip – Keeps you in their slipstream without turbulence.

🔥 Drill: Follow the Leader Drill – Practice swimming behind a partner in training to get comfortable drafting in races.


5. Mastering Triathlon Swim Starts & Exits

Triathlon races start with mass starts, beach sprints, or deep-water starts.

💡 How to Master Race Starts & Exits:

Positioning Matters – Stay on the outside of the pack if you want clear water.

Dolphin Diving – In shallow beach starts, dive forward instead of running through water.

Fast Transitions – Kick harder in the last 50m of the swim to prepare your legs for the bike.

🔥 Drill: Run-Swim-Run Drill – Practice running into the water, swimming, and then exiting quickly to simulate a real triathlon start.


Triathlon Swim Training Plan (Weekly Schedule)

🏊‍♂️ Training Breakdown (3–4 Swim Sessions per Week)

Session 1: Stroke Efficiency & Breathing (Endurance Focus)

✔ 400m freestyle warm-up

✔ 6 x 50m fingertip drag drill (rest 15 sec)

✔ 4 x 100m sighting practice (rest 20 sec)

✔ 8 x 50m bilateral breathing focus (rest 15 sec)

✔ 200m easy cool-down

Session 2: Speed & Race Pacing

✔ 300m warm-up

✔ 4 x 50m build speed (rest 20 sec)

✔ 3 x 200m negative split swims (rest 30 sec)

✔ 6 x 25m sprints with fast turns and high stroke rate

✔ 100m cool-down

Session 3: Open Water Simulation

✔ 200m easy warm-up

✔ 6 x 50m head-up freestyle (sighting drill)

✔ 4 x 100m drafting practice with a partner

✔ 200m continuous swim with sighting focus

✔ 100m cool-down

Session 4 (Optional): Strength & Technique Refinement

✔ 500m freestyle with minimal kick

✔ 6 x 50m single-arm freestyle drill

✔ 4 x 100m fast finishes (last 50m at max effort)

✔ 200m cool-down

💡 Goal: Balance technique, endurance, and race strategy in every session.


Common Mistakes & How to Fix Them

Mistake #1: Poor Sighting Technique

🔹 Fix: Use quick "alligator eyes" to sight without lifting your head too high.

Mistake #2: Kicking Too Hard

🔹 Fix: Use a low-energy kick to save your legs for the bike/run.

Mistake #3: Holding Your Breath

🔹 Fix: Exhale completely underwater to avoid oxygen debt.

Mistake #4: Not Training in Open Water

🔹 Fix: Swim in lakes or oceans before race day to get comfortable.


Final Takeaways: How to Improve Your Triathlon Swim

Focus on Stroke Efficiency – Long, smooth strokes reduce fatigue.

Perfect Open Water Skills – Sighting, drafting, and mass starts are key.

Train for Endurance, Not Just Speed – Swim longer distances to build stamina.

Use Drills & Race Simulations – Practicing real race conditions makes race day easier.


By implementing these techniques, drills, and workouts, you’ll become a stronger, more efficient triathlon swimmer, ready to dominate your next race! 🏊‍♂️🔥

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