Swimming is the most technique-dependent of the triathlon disciplines — and the one most beginners approach completely wrong. They try to swim longer before swimming better, which means spending hundreds of hours ingraining inefficient habits that become progressively harder to fix. The correct approach is the opposite: master the technique fundamentals first, then build distance on that foundation.
This 8-week plan follows that sequence. The first three weeks prioritize drills over distance. By week 8, you'll be swimming 1,500–2,000 metres comfortably — more than enough for a sprint triathlon, and a genuine foundation for open water swimming.
What You Need Before Starting
Basic requirements:
- You can swim at least 25 metres (one pool length) without stopping
- You're comfortable in water and not experiencing fear responses
- Access to a 25m or 50m pool at least 3 times per week
If you cannot swim 25 metres, take 2–4 lessons with a qualified instructor first. This plan cannot substitute for basic water safety.
Recommended gear:
- Goggles (essential — clear or tinted depending on your pool lighting)
- Swim cap (reduces drag, protects hair from chlorine)
- Pull buoy (floats your hips while you work on arm technique)
- Kickboard (isolates leg technique)
- Fins (optional — accelerate technique learning by giving feedback on body position)
The Fundamentals: What Good Freestyle Looks Like
Before looking at the plan, understand what you're aiming for technically. Efficient freestyle has five elements:
1. Body position (horizontal): Your hips and legs should be near the surface. If your legs sink, you're creating drag equivalent to towing a parachute. High hips = fast swimming.
2. Head position: Eyes look down (not forward). The waterline should be at your hairline when breathing. Looking forward lifts your head, which drops your hips.
3. Rotation: Your body should rotate ~45° from side to side with each stroke. You don't swim flat on your stomach — you roll between your sides. This rotation powers your pull and enables proper breathing.
4. Catch: Your hand enters the water fingertips-first, extends forward, then anchors — fingertips down, elbow high — before pulling back. The catch is where most beginners lose 30–40% of their potential propulsion.
5. Breathing: Rotate to breathe; don't lift your head. One goggle stays in the water when you breathe. Exhale fully underwater before rotating to inhale.
Getting these five elements to work together is the work of this plan's first four weeks.
The 8-Week Beginner Swimming Plan
Sessions are 45–60 minutes including warm-up and cool-down. All distances are in metres. 3 sessions per week minimum; 4 sessions produces faster progress.
| Week | Sessions/Week | Total Distance | Drills Focus | Key Sets |
|---|---|---|---|---|
| 1 | 3 | 800–1000 m | Body position, kicking | 8×25 m with 30 sec rest; pull buoy sets |
| 2 | 3 | 1000–1200 m | Head position, rotation | 6×50 m with 45 sec rest; rotation drills |
| 3 | 3–4 | 1200–1500 m | Catch, arm entry | 4×100 m with 60 sec rest; fingertip drag drill |
| 4 | 3–4 | 1400–1800 m | Breathing rhythm | 4×100 m + 2×200 m; focus on bilateral breathing |
| 5 | 3–4 | 1600–2000 m | Tempo, building pace | 5×100 m descending (each one slightly faster) |
| 6 | 4 | 2000–2400 m | Efficiency (DPS) | 3×200 m with count strokes, aim to reduce count |
| 7 | 4 | 2200–2600 m | Open water sim, sighting | Continuous 400–600 m; add sighting every 10 strokes |
| 8 | 3–4 | 2000–2400 m | Race prep, pacing | Time trial: 400 m for time, then 4×100 m at that pace |
Drill Descriptions
Week 1–2: Kick Drills and Body Position
Kickboard kick: Hold a kickboard at arm's length, face in water, kick for 25 m. Your kick should propel you, not just keep you afloat. A good kick is fast (240+ kicks/min), from the hip (not the knee), with flexible ankles. If you go nowhere, you're bending your knees too much.
Pull buoy only (no kick): A pull buoy between your thighs floats your hips without kicking. This is your most important drill — it lets you feel what correct horizontal body position feels like. If your hips drop when you remove the pull buoy, you have work to do.
Week 2–3: Rotation Drills
Side kick drill: Lie on your side in the water (one arm extended forward, one at your side) and kick down the pool. Hold for 6 kicks, then take 3 strokes and rotate to the other side. This exaggerates the rotation you should feel in freestyle.
Catch-up drill: One hand stays extended in front until the other hand "catches up" to it before the pull begins. This slows your stroke down and isolates each arm's path through the water.
Week 3–4: Catch Drills
Fingertip drag: As your recovering arm comes forward above the water, drag your fingertips along the surface. This keeps your elbow high and prevents a dropping elbow on recovery, which causes the arm to swing wide.
High elbow catch (sculling): At the catch position (hand forward, elbow bent at 90°), scull your hands back and forth like a figure-8 without pulling. Feel the water pressure on your palm. That pressure is what you anchor against during the pull.
Open Water Preparation (Weeks 7–8)
Pool swimming and open water swimming are meaningfully different. Key adaptations needed:
Sighting: In open water, you navigate by landmarks, not lane lines. Practice lifting your eyes just above the waterline every 8–12 strokes to sight a target ahead. The "alligator eyes" technique: look forward for just a second before rotating to breathe — it barely interrupts your stroke.
No walls: Pool turns give you a push-off and brief rest. In open water, there are no walls. Your pool sets should simulate this from Week 5 onward: reduce rest times, swim longer continuous distances, and practice turning mid-pool.
Wetsuit buoyancy: A triathlon wetsuit dramatically increases your buoyancy, raising your body position significantly. Your kick may feel less necessary (and it often is in a wetsuit). If you can borrow or rent a wetsuit for a pool session before your first open water swim, do it — the feel is quite different.
Starts and crowd: Open water races start with dozens of bodies in the water simultaneously. Practice swimming close to other people in your pool (lane sharing, touching feet) to prepare for contact.
Heart Rate Response to Swimming
Swimming produces a lower maximum heart rate than running or cycling — typically 10–15 bpm lower. This is due to the horizontal body position (less cardiac effort to pump blood against gravity) and the cooling effect of water. Don't be alarmed if your swimming HR seems lower than your running or cycling zones.
| Swim Effort | Approximate HR | RPE | Notes |
|---|---|---|---|
| Easy (technique work) | 55–65% max HR | 3–4 | Full sentences possible |
| Aerobic (endurance sets) | 65–75% max HR | 5–6 | Breathing elevated, sustainable |
| Threshold (race pace) | 75–85% max HR | 7–8 | Focused, can't talk |
| Hard intervals | 85–90% max HR | 9 | Unsustainable beyond 2–4 min |
For the first four weeks of this plan, swim exclusively at Easy–Aerobic effort. Introducing hard swimming before technique is established reinforces poor mechanics under fatigue.
Sample Week 4 Session in Full
Warm-up (200 m): 100 m easy freestyle + 100 m kick on board
Drill set (400 m):
- 4×50 m catch-up drill with 20 sec rest
- 4×50 m fingertip drag with 20 sec rest
Main set (600 m):
- 4×100 m freestyle with 45 sec rest, focus on breathing bilaterally (both sides)
- Goal: breathe every 3 strokes (right-left-right-breathe, then left-right-left-breathe pattern)
Cool-down (200 m): Easy backstroke + 50 m easy freestyle counting strokes per length
Total: ~1,400 m
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FAQ
Q: How long does it take to swim 400 metres comfortably?
A: Most beginner swimmers who complete this 8-week plan can swim 400 metres continuously by weeks 6–7. The key benchmark for a sprint triathlon swim (typically 400–750 m) is not speed but comfort — being able to sustain a steady rhythm without stopping or panic. Most sprint triathletes complete the swim in 8–15 minutes.
Q: Should I breathe every 2 or every 3 strokes?
A: Bilateral breathing (every 3 strokes, alternating sides) is the gold standard for technique development — it forces symmetrical rotation and helps identify if one side of your stroke is weaker. However, in races or hard efforts, breathing every 2 strokes (same side) delivers more oxygen and is perfectly acceptable. Learn bilateral breathing first, then switch to 2-stroke breathing when you need more air.
Q: Can I train for open water swimming without access to open water?
A: Yes. Pool training builds the fitness and technique you need. Add sighting practice (lifting your eyes above the waterline) and longer continuous swims without pushing off walls from week 5 onward. Your first open water swim will still feel different — currents, lack of lane lines, no walls — but if your pool swimming is solid, you'll adapt quickly.
Q: What causes open water swimming anxiety?
A: The most common triggers are cold water temperature, inability to see the bottom, waves and choppiness, and close contact with other swimmers. Address them progressively: swim in open water during low-traffic hours before attempting a race, wear a full wetsuit (significantly warmer and more buoyant), practice breathing on both sides so wave action doesn't interrupt your breathing, and do at least one practice swim in open water before your first triathlon.
Q: My legs sink when I swim. What am I doing wrong?
A: Sinking legs are almost always caused by one of three things: (1) Looking forward instead of down — lifting your head drops your hips. (2) Not exhaling underwater — holding air in your lungs keeps your chest too buoyant, tilting your body like a seesaw. (3) Weak kick from the knee rather than hip. Use the pull buoy drill to feel the correct position, then try to replicate that position while kicking. Flexible ankles are also crucial — if your feet are pointed upward rather than downward and backward, your kick creates drag instead of propulsion.
Related Articles
- First Sprint Triathlon Guide — race day preparation including the swim
- Open Water Swimming Guide — complete guide to transitioning from pool to open water
- Sprint Triathlon Training Plan: 12 Weeks — combine swim with bike and run