I ran 7 km today in 33:56 minutes (23 seconds faster than yesterday) the average speed today was 4:48 minutes per km. I burned 405 calories. This means in the theory: 10 km in 48:20 minutes with the same average speed. That is better than my recorded best time (10 km: 49:55 minutes). 1 min 35 sec faster in theory. I have to run 10 km next time.