A lot of triathletes are about to – or already have, started to move into the Preparatory Phase, often referred to as the General Base Phase, of their training cycle. This is an important time of year and a valuable opportunity to focus on the key fundamentals that set up success later in the season.
While there is still a strong focus on improvement, the overall training load and intensity are typically lower than during build or race-specific phases. Think of this block as building the engine, strengthening the chassis, and laying the foundations for harder work to come.
This phase generally lasts 8–12 weeks, depending on your goals, experience, and race calendar.
Key Focus Areas of the Preparatory / General Base Phase
During this phase, training is designed to develop the following areas:
- Creating consistent habits and routines
Regular training, recovery, sleep, and nutrition habits that support long-term progress. - Technical development
Improving swim efficiency, bike skills, run mechanics, transitions, and movement quality. - Strength and durability
Building resilience through strength work, mobility, and injury prevention habits. - End-of-range / top-end stimulus
Small touches of speed, cadence, power, or higher-end efforts to maintain neuromuscular sharpness. - Aerobic development
A strong emphasis on low-intensity aerobic work (often low heart rate / MAF style training) to improve endurance and efficiency. - Lower overall life stress
Compared with race season, this phase often allows a more manageable balance between training, family, and work commitments.
All live training sessions, coaching conversations, and weekly programming are built around what is most appropriate for this phase of the year. It is very different from race-phase training, so it’s important to understand that not every session is meant to leave you exhausted.
Understanding Session Structure
Progression can happen through a number of different ways within a training program. This can include:
- More repetitions
- Longer durations
- Increased intensity
- Reduced recovery periods
- Improved technical execution
- Greater consistency week to week
When you understand the purpose behind each session, it becomes easier to trust the process and execute it properly.
When you are asked to go easy, make sure you do. Easy sessions help absorb training, build aerobic fitness, and prepare you for the harder sessions.
When you are asked to go hard, commit to it.
Many athletes struggle because they train too hard on easy days and not hard enough on key days. If you can master the balance between easy and hard, you unlock a much higher level of athletic potential.
Flexibility and Scalability
You will also notice that sessions often include room for adjustment. This is intentional.
Training should be structured, but also flexible enough to account for real life. On any given day, you may need to scale a session based on:
- Fatigue
- Work or family commitments
- Stress levels
- Recovery status
- Illness niggles or soreness
- Weather or time limitations
Scaling may mean:
- Shortening duration
- Reducing intervals or repetitions
- Lowering intensity
- Changing terrain or mode of session
Always begin with the intention of completing the session as prescribed. But if circumstances require adjustment, make the smart decision, complete what you can, and communicating with your coach afterwards is the key to ensure you and your coach are on the same page.
Final Coaching Thoughts:
“The Preparatory Phase is where great seasons are built. It may not always feel glamorous, but consistency during this block creates the fitness, strength, and confidence that race performances are built on later in the year.”
Trust the process, stay patient, and keep stacking good, consistent weeks together.
