Yesterday was a recovery day – although I did a bit of cross-training on my indoor bike (an hour of 8 minute heart-rate zone 3 efforts). Today it's Yasso time!
The workout Today the schedule tells me it's time for Yasso's. A yasso (see Runner's World) is a 800m run which you run in the time of your marathon, in terms of minutes and seconds. For instance, a runner aiming at a marathon in 3 hours and 30 minutes should run a yasso in 3 minutes and 30 seconds. Recovery is the same time as the yasso.
Of course you can clock these times, which is especially easy on a track (which is, after all, 400m), I find it handy to use kilometer or mile pace, which spans 1000 or 1609 meters. You can calculate this yasso pace at the calculators page.
Today I'm doing 8 yasso's, each in 2:50 (pace around 3:30/5:38).
Afterwards The first yasso (or any interval for that matter) usually sucks, as it did this time. I think it has to do with finding the right pace. The rest went well, a bit too fast, but it felt good. Sometimes I do yasso's on the track, but not this time, which meant finding a stretch of road without traffic lights.
Photo by Priscilla Du Preez on Unsplash
A yasso workout always feels like hard work, which it should, of course, but it's a quality workout which I really like doing.
Workout data If you want to see the workout, check it out on Garmin or on Strava.
Coming out of the tunnel, near the end of the Mile. Thanks to Percy van As for the picture.
The results. My official finishing time was 5:08, but you can see how accurate Stryd was – given that the 20 meters extra could well have been caused by my late button pressing.
Photo by Jonathan J. Castellon on Unsplash
Plexfit, photo from