Swimming Plan

AI-built beginner swimming plan

Q: How many minutes per session?

For beginners, 45-60 minutes per session . The first 4 weeks may be shorter (40-45 min). The last 4 weeks may reach 60-75 min. More than 75 min in beginner = technical saturation + fatigued shoulder muscles.

Q: What if I get tired at 100 meters?

Almost certainly a technical problem, not aerobic capacity. The right question: How am I breathing? Body flat or rotated? Stroke long or short? The first 4-6 weeks, EntrenAI prioritizes technical drills over distance. Tired at 100 m with efficient technique? Then it's aerobic capacity and built with progressive 50-100 m sets.

Q: Do I need lessons with an instructor?

Highly recommended for the first 4-6 sessions if you're starting from scratch or have entrenched technical errors. 4-6 individual swimming lessons ($60-80/lesson typically) at an adult swim school can radically change your technique. After, the EntrenAI plan covers the rest. Alternative: online video analysis (some schools offer it).

Q: What about open water or sea?

Beginner plan = pool 100 %. Open water has complications (visibility, waves, temperature, wetsuit) that aren't suitable for beginners. Once you complete the beginner plan, consider swimming--open-water (4-6 additional weeks).

Q: Freestyle/crawl or also backstroke and breaststroke?

Beginner plan focuses on freestyle (crawl) because it's the most common technique and the only one used in triathlon / open water. Backstroke appears as complement (kick drills + recovery). Breaststroke isn't trained specifically — if you know it, use it as rescue (comfortable style if tired), but not as main training.

Q: What exactly is SWOLF?

SWOLF = number of strokes per 50 m + seconds per 50 m . Example: 35 strokes + 50 seconds = SWOLF 85. The lower the SWOLF, the more efficient. For freestyle, beginner 60-85, intermediate 50-60, advanced <50, elite <35.

Q: How do I combine swimming with other disciplines?

Swimming only: 3-4 sessions/week, EntrenAI-specific plan. Combining with biking/running: max 2-3 swim sessions/week to avoid shoulder saturation. For triathlon: Sprint triathlon plan integrates the 3 disciplines with appropriate frequencies.

Q: How many months to swim 1,500 m continuous?

After completing the beginner plan (12 weeks for 1,000 m continuous), adding swimming--1500m (4-6 additional weeks) takes you to 1,500 m comfortable continuous. Total: ~4 months from scratch to 1,500 m. Coming from better initial base (you swim but only 200 m), 6-8 weeks suffice.

8-12 weeks to swim 1,000 m continuous comfortably. EntrenAI structures technique + aerobic capacity from scratch with progressive drills. 3 sessions/week in 25 m pool. For total beginners or those returning after years away.

Updated September 14, 2026

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What is a beginner swimming plan?

The beginner swimming plan is for someone who doesn't swim well or hasn't swum regularly in years. The goal is to build enough technical + aerobic capacity for 1,000 m continuous comfortable in pool in 10-12 weeks.

Swimming is the most technical popular sport. Unlike running or cycling (where more effort = more performance most of the time), in swimming poor technique can consume twice the energy without making more progress. The difference between 'swim however I can' and 'swim well' is enormous — an efficient swimmer with 2 sessions/week outperforms a technically poor one with 4 sessions.

The plan is built on three pillars:

Technical drills (50 % of time): stroke, breathing, rotation, kick, body alignment
Aerobic capacity (40 %): progressive 50-200 m sets
Initial speed (10 %): only in last 4 weeks, short sprints

From 25 metres to 400 non-stop in 8 weeks

Progress is in continuous distance, not speed. Three 30-40 minute sessions a week; the app repeats a week if the 400 does not feel comfortable.

Week	Main set	Rest	Metres/session
1	8 × 25 m	30 s	600
2	6 × 50 m	30 s	800
3	8 × 50 m	20 s	1,000
4	5 × 100 m	30 s	1,100
5	4 × 150 m	30 s	1,200
6	3 × 200 m	30 s	1,300
7	2 × 300 m	45 s	1,400
8	1 × 400 m non-stop	—	1,500

How the plan works

Your AI-generated plan

1. Initial validation. EntrenAI requires basic capacity to:

Float face-down and face-up without panic
Breathe laterally with face out of water (at least theoretically)
25 m pool access minimum

Don't float or don't breathe laterally? Before the plan you need basic swimming lessons with an instructor (4-6 individual sessions).

2. 3-phase structure (12 weeks):

Basic technique (wk 1-4): each session 70 % drills + 30 % continuous swim. Total per session: 800-1,200 m.
Aerobic build (wk 5-8): 50 % drills + 50 % sets. Total 1,500-2,000 m.
Specific (wk 9-12): 30 % drills + 70 % sets + continuous swim. Total 2,000-2,500 m.

3. Each session structure:

200 m easy warm-up (freestyle)
Specific technical drills (200-400 m, depending on phase)
Main aerobic block (varies by phase)
100-200 m easy cool-down

4. Critical drills (in learning order):

Backstroke kick with board (wk 1-2): learn to kick from the hip, not the knee
Lateral breathing every 3 strokes (wk 1-3): breathe both sides, even if hard at first
One-arm stroke (wk 2-4): isolates the active arm's mechanics
Shoulder rotation with kick (wk 3-5): body rotates like a stick on its axis, isn't flat
Catch-up drill (wk 4-6): arms don't cross, one hand waits for the other in front
Long stroke with glide (wk 5-8): each stroke pushes the body forward, you don't 'run' in water

5. Minimum frequency. 3 sessions per week is the minimum for real progress. With 2 sessions/week you progress but very slowly (technical skill fades quickly between spaced sessions). 4 sessions/week is optimal for very committed beginners.

6. Progress metrics. EntrenAI measures:

SWOLF (strokes + seconds per 50 m). Initial: 60-80. Target in 12 weeks: <50.
Strokes per 25 m length. Initial: 25-30. Target: <20.
Continuous distance. Initial: 50-200 m. Target: 1,000 m.

The stroke, phase by phase

The technique plan fixes one phase a week, in this order. The orange arm is the working one; in each session the app tells you which phase to watch and with which drill.

Who is this plan for?

I can swim but only 100-200 m before stopping. 10-12-week plan. Focus on technique to reduce consumption + progressive aerobic capacity.
Haven't swum in years / always swam badly. 12-14-week plan. The first 6 weeks are almost only drills + 200-400 m total per session.
I'll do triathlon / open water soon. 10-12-week plan as base + then Sprint triathlon plan adds speed and open water.

Already swim 800-1,000 m continuous comfortably? This plan is below your level — use swimming--technique or swimming--1500m.

Metres per week across the 8 weeks

From 1.6 to 4.5 km a week. The thin bar is the longest continuous swim of the week, which reaches 0.4 km.

Base
Build
Specific
Longest continuous swim

Sample plan

Your first weeks, in detail

Week 4

End of basic technique — first 200 m continuous test

Day	Session type	Detail	Duration
Monday	Technique + drills aerobic	- Warm-up: 100 m easy freestyle + 100 m backstroke - Drills: 4×50 m one-arm only (1 each time) + 4×50 m kick only with board - Main set: 4×100 m freestyle with 30 seconds rest between sets. Focus on bilateral breathing every 3 strokes. - Cool-down: 100 m very easy freestyle Total: ~1,000 m	50 min
Wednesday	Technique + drills	- Warm-up: 200 m progressive (100 m freestyle + 100 m backstroke) - Key drills: 6×50 m catch-up drill (one hand waits for the other in front) - Main set: 8×50 m freestyle with 20 seconds rest between sets. Comfortable speed, focus on SWOLF. - Cool-down: 200 m easy alternating freestyle and backstroke Total: ~1,000 m	50 min
Friday	200 m continuous test + technique	- Warm-up: 200 m easy freestyle + drills 100 m - Test: 200 m continuous freestyle without stopping. Time it, note SWOLF. - After: 4×50 m easy with 30s rest (post-test recovery) - Cool-down: 100 m very easy Total: ~750 m	45 min

Week 11

Specific — 800 m continuous, 1 week before final 1,000 m test

Day	Session type	Detail	Duration
Monday	Aerobic capacity with long sets	- Warm-up: 300 m freestyle + drills 200 m (catch-up + long stroke) - Main set: 4×200 m freestyle at comfortable pace with 30 seconds rest between sets. Focus on holding efficient technique (SWOLF <55). - Cool-down: 200 m easy Total: ~1,500 m	55 min
Wednesday	Speed + technique	- Warm-up: 300 m + drills 200 m - Speed: 8×50 m at stronger pace (~85 % effort) with 20 seconds rest - 200 m easy freestyle to recover - Technique: 4×100 m with strict bilateral breathing every 3 strokes - Cool-down: 100 m easy Total: ~1,700 m	60 min
Friday	800 m continuous test	- Warm-up: 300 m easy + drills 100 m - Test: 800 m continuous freestyle without stopping (~16-18 minutes). Time it. Focus: do NOT accelerate at start, hold steady pace. - Cool-down: 200 m very easy Total: ~1,300 m	55-60 min

These examples are real extracts from the EntrenAI planning engine. Your personal plan adjusts to your level, equipment and availability.

Equipment needed

EntrenAI automatically substitutes any exercise if you don’t have the gear.

Pool access (25 m or 50 m) minimum 3×/week
Well-fitting swim goggles (try several beforehand — every head is different)
Sport swimsuit (not fashion — competition or jammer style)
Silicone or latex cap (mandatory in many pools)
Kickboard (essential for kick drills)
Pull buoy (essential for arm drills)
Short fins (optional but useful for technical drills)
Pool wall clock or waterproof swim watch (Garmin Swim 2, Apple Watch SE+, Form Smart Goggles)
Towel and pool sandals (obvious)

Common mistakes

What most people get wrong (and how to avoid it)

1
Always swimming flat-out without drills
Universal amateur swimmer mistake: 'I just go and swim what I can'. Without specific drills, technical errors consolidate and progress stalls at 4-6 weeks. The rule: minimum 30-50 % of session time in drills during the beginner plan.
2
Always breathing on the same side
Breathing always to the right (or always to the left) creates rotation imbalance + stroke asymmetry. Bilateral breathing every 3 strokes evens out the sides. At first it's very uncomfortable to breathe on the 'bad' side — first week, alternate 25 m bilateral / 25 m comfortable side. Progressively all bilateral.
3
Kick from the knee instead of the hip
Efficient kick comes from the hip: thigh moves, knee relaxes. Knee kick (typical beginner) is less powerful and creates resistance in the water. Key drill: **backstroke kick with board**, where the hip MUST be the engine.
4
Short, fast stroke
Doing 25 strokes per 25 m length at high speed = inefficient. Optimal stroke is **long, with glide** between strokes. Goal: <20 strokes per 25 m. Key drill: catch-up (one hand waits for the other in front).
5
Flat body in water
The body should rotate (45-60 degrees) on its longitudinal axis with each stroke. Flat body = more resistance, less powerful stroke. Key drill: rotation with kick, no arms, looking alternately at the lateral ceiling.
6
Not resting between sessions
For beginners, **3 sessions/week with 1 rest day between** is optimal (Mon-Wed-Fri). Doing 5 days straight = saturated shoulder muscles, technique worsens, rotator cuff tendinopathy risk. Rest is where new technique consolidates neurologically.
7
No goals per session
'I'll swim 30 minutes' isn't a plan, it's going to the pool. Each session must have: specific drills, main set target distance, metric to track (SWOLF or strokes/length). Without it, the session is merely cardiovascular.
8
Comparing SWOLF with advanced swimmers
Competitive swimmer has SWOLF of 30-35 in freestyle. Beginner 60-80 initially. Expected progression: -10 SWOLF in 12 weeks with structured plan. Comparing to elite is frustrating — individual progress (from 70 to 55 in 12 weeks) is what matters.

Other Swimming plan variants

Back to the general Swimming plan

Frequently asked questions

For beginners, 45-60 minutes per session. The first 4 weeks may be shorter (40-45 min). The last 4 weeks may reach 60-75 min. More than 75 min in beginner = technical saturation + fatigued shoulder muscles.

Almost certainly a technical problem, not aerobic capacity. The right question: How am I breathing? Body flat or rotated? Stroke long or short? The first 4-6 weeks, EntrenAI prioritizes technical drills over distance. Tired at 100 m with efficient technique? Then it's aerobic capacity and built with progressive 50-100 m sets.

Highly recommended for the first 4-6 sessions if you're starting from scratch or have entrenched technical errors. 4-6 individual swimming lessons ($60-80/lesson typically) at an adult swim school can radically change your technique. After, the EntrenAI plan covers the rest. Alternative: online video analysis (some schools offer it).

Beginner plan = pool 100 %. Open water has complications (visibility, waves, temperature, wetsuit) that aren't suitable for beginners. Once you complete the beginner plan, consider swimming--open-water (4-6 additional weeks).

Beginner plan focuses on freestyle (crawl) because it's the most common technique and the only one used in triathlon / open water. Backstroke appears as complement (kick drills + recovery). Breaststroke isn't trained specifically — if you know it, use it as rescue (comfortable style if tired), but not as main training.

SWOLF = number of strokes per 50 m + seconds per 50 m. Example: 35 strokes + 50 seconds = SWOLF 85. The lower the SWOLF, the more efficient. For freestyle, beginner 60-85, intermediate 50-60, advanced <50, elite <35.

Swimming only: 3-4 sessions/week, EntrenAI-specific plan. Combining with biking/running: max 2-3 swim sessions/week to avoid shoulder saturation. For triathlon: Sprint triathlon plan integrates the 3 disciplines with appropriate frequencies.

After completing the beginner plan (12 weeks for 1,000 m continuous), adding swimming--1500m (4-6 additional weeks) takes you to 1,500 m comfortable continuous. Total: ~4 months from scratch to 1,500 m. Coming from better initial base (you swim but only 200 m), 6-8 weeks suffice.