TCC ENDURANCECSS Reset & Pace Builder

TCC ENDURANCE · SELF-PACED SWIM COURSE

CSS Reset & Pace Builder

Understand your swim pace. Test consistently. Put the result to work.

If you can swim continuous front crawl but are unsure what your CSS result means, this course gives you a practical way to use it. Work through four short lessons, collect reliable test times and follow four adaptable swims across two weeks.

Make the number useful

You will learn what CSS estimates, how it differs from a laboratory threshold measurement and why it is not a guaranteed race pace. You will prepare a 400 m/200 m test, use TCC's existing calculator and translate the result into appropriate repetition targets.

By the end, you will have your own testing record, practical pace notes and a way to review how your training actually feels. The emphasis is on making sensible decisions, including when to slow a set down or question the test.

Who it is for

Beginner and intermediate triathletes who already swim continuous front crawl and want a clearer approach to structured pool training. You will need access to a suitable lifeguarded pool, a timing method and enough confidence for a continuous 400 m before attempting the test. A helper for timing is useful.

If continuous front crawl is still a struggle, develop that first. You can read the course and use the example without attempting maximal testing. This is general education and independent training guidance; individual medical advice and personal coaching are outside the course.

Your four lessons

1. What CSS Actually Measures
8–10 minutes • Understand the estimate, its limitations and the different ways swimmers assess pace.

2. How to Test CSS, Cleanly
About 10 minutes • Prepare, pace and record your 400 m and 200 m tests consistently.

3. Build and Understand Your Pace Table
8–10 minutes • Use the free calculator, interpret its outputs and record practical targets.

4. Use It for Two Weeks
9–12 minutes • Follow four adaptable swims, review your response and choose the next step.

Take it to the pool

The downloads include a testing protocol and results sheet, preparation checklist, personal pace worksheet, four-session swim plan and reflection sheet. The plan has shorter alternatives and clear guidance on pace, rest and adjustments.

The programme is designed to help you practise pacing and interpret your response. It does not promise a particular improvement in two weeks.

The calculator stays free

Use the free TCC CSS calculator whenever you need it. You do not need to buy this course to calculate CSS. The paid course adds explanation, test preparation, interpretation, applied activities and a practical training programme.

Learn independently

The course costs £19 as a one-off purchase. Access is through your customer account, with ongoing access to the lessons and downloads while TCC hosts the course. There are no scheduled teaching sessions, marked assignments or included personal coaching. The course is separate from TCC coaching subscriptions.

From TCC Endurance

Chris Wallace coaches endurance athletes across triathlon, swimming, cycling and running. He is also a Lecturer in Sport & Exercise Science, coach educator and mentor. The course follows TCC's practical, evidence-informed approach: understand the purpose, start from where you are and fit training around real life.

Meet the TCC coaches.