6 Week CSS Plan (Swimming Coach) is a 6-week swimming plan. This article combines the actual plan description with a example week from the stored workout entries.
What this plan is built for
Do you want to improve your Critical Swim Speed (CSS)? This 6-week plan is perfect for an intensive swimming block to elevate your swimming level to a new height!
You will swim 3 times a week, with 2 sessions being intense!
Training Zones Heart Rate Zones Duration Example Intensity
Training logic and load
The build phase adds more specific stress while keeping enough easy work to preserve quality week after week. The important part is not upgrading easy days into hidden hard days. The workout data shows which sessions are structured and which ones are intentionally simple.
The plan contains 17 scheduled entries across 6 weeks. The sequence matters as much as the total hours: hard, technical, or long workouts only work when the surrounding days allow you to absorb them.
Example week: Week 3
This week is not a generic template. It is built from the actual training plan entries, and the workout charts use the stored workout data.
400 m | 4x variable on / 1 min easy | 100 m | 4x variable on / 1 min easy + 6 more steps
400 meters warm-up swim 4 repetitions of 50 meters (25 meters sculling + 25 meters easy swimming) with 30 seconds rest 100 meters easy swimming 4 repetitions of 50 meters (25 meters maximum sprint + 25 meters easy) with 30 seconds rest 100
No scheduled workout in this real plan week. Use the day to absorb the load and arrive fresh for the next session.
No scheduled workout in this real plan week. Use the day to absorb the load and arrive fresh for the next session.
200 m | 4x variable on / 0 min easy | 100 m | 10x variable on / 0 min easy + 4 more steps
200 meters/yards warm-up swim 4 rounds of 150 meters/yards (50 meters/yards single-arm with contact drills + 50 meters/yards hip-shoulder-head touch drills + 50 meters/yards freestyle with long strokes), rest after each round: 20 seconds 10
No scheduled workout in this real plan week. Use the day to absorb the load and arrive fresh for the next session.
200 m | 4x variable on / 0 min easy | 100 m | 10x variable on / 0 min easy + 3 more steps
200 meters/yards warm-up swim 4 sets of 150 meters/yards (50 meters/yards butterfly/backstroke and breaststroke/freestyle alternating + 50 meters/yards legs + 50 meters/yards GA1) with 20 seconds rest 100 meters/yards easy swim 10 sets of 1
No scheduled workout in this real plan week. Use the day to absorb the load and arrive fresh for the next session.
How to read the workout charts
The chart is based on the workout data: longer segments take more width, higher intensities sit higher, and harder work is marked with stronger colors. For swim or distance-based segments, the graphic represents the planned sequence rather than GPS data.
Practical execution
What to watch
- Execute the key days precisely instead of making the easy sessions faster.
- Use the plan description as context: equipment, fueling, mobility, and realistic threshold values are part of the training.
- When life or fatigue adds pressure, trim secondary work first and keep the most important session stable.
Training effect
Executed well, the plan improves your ability to absorb the intended stimulus repeatedly. Depending on sport and phase, that means more aerobic stability, better pace durability, stronger technique under fatigue, or more confidence at target effort.