The pace clock.
The best swimming tool there is. Make it your best friend! Use it for …
- Pacing
- Counting
- Rest intervals
- Repeat times

Pacing
Use it to know what pace you’re swimming each interval. Works particularly well for short distances (50, 100, 200). Anything longer, I tend to have a quick glance at the clock every 100m to check on current pace.
To do this, know what time you start the interval. ‘The red top’ – starting when the ‘red hand’ of the pace clock is pointing towards the 60 (the top of the clock) – is a good place to start. Notice what the clock says when you finish your interval – and then work out how long it took you to swim the rep.
Counting
For a set with lots of reps, use the pace clock to help you count.
I often do sets of 50’s – and it’s very easy to forget where you’re up to. To help with this, I use an interval time that means I can tell how many reps I have done just by knowing what time I need to set off for the next rep.
For example, I might do 12 x 50m off 55”.
For the first rep, I start @ 60 on the clock
Number 2, I leave the wall 55 seconds after the first one, so @ 55 on the clock
The third one is 55 seconds after that, so @ 50 on the clock.
etc
You could use 1.05 and it work exactly the same.
#1 @ 60 on the clock
#2 @ 05 on the clock
#3 @ 10 on the clock
etc
Keeping You Honest
It’s easy to take too much test between reps – or use inconsistent rest intervals. Use the clock to make sure you’re taking appropriate rest times – and not guessing.
Repeat Times
The main reason I use the clock is to swim off consistent repeat times / off times / interval times. This simply means a set of reps ‘off’ a certain time.
For example, a set of 10 x 100m ‘off’ 1.45.
If you swim the 100m in 1.25, you’ll get 20 seconds rest before you start the next rep. If you swim it in 1.40, you’ll get 5 seconds recovery before you need to set off.
I use a Garmin watch on most of my swims too – mainly for data collection and a little analysis later. Whilst I’m in the pool, the pace clock is king!
Discover more from Triathlon Swim Squad
Subscribe to get the latest posts sent to your email.
