Yearly maintenance of my car. It had an appointment this morning. I took the opportunity to go for a run while waiting. The road led me to the nearest stadium where I made several laps on the track.
Almost five kilometers warmup in an already warm morning, nine laps on the track, run back in time to see I was early. So I took a cup of coffee while waiting some more.
Heart rate graph shows that I did a sort of interval training while on the track. Three eights of the Yasso, to be exact.
Here are the lap times. Three repeats of 800 meters projected tempo run with 400 meters jog in between.
Intervals were paced at 4:36, 4:33 and 4:31 respectively. Quite consistent. This corresponds to a 3:40 marathon finish time when done ten times in a row. This is a theory at least.
All in all, it was a well-spent morning. my car is in order and ready for another year, the run was good, the coffee was delicious. Then I went to the office ...
All the physical activity data that I display in my 
Join Actifit program, stay fit and earn crypto - HIVE, AFIT, AFITX, PAL, SPORTS, ...
Vote for Actifit as a Witness
Official Actifit links: Discord | Website | Android app | iOS app | FAQs | Text Tutorial
Disclaimer:
I am a long-time Actifit user and ambassador for the program. Please, ask me anything about it.
Better and better
Check out some detailed info at my EXHAUST page
Join me in testing out EXHAUST!