10 KM in 47 min 46 seconds

Ran my personal best 10km this morning in 47 min and 46 seconds. I have been improving on my 10km for the last 3 runs. I did 50 min and 15 seconds a week back, improved it to 49 min and 59 seconds and today the time above. I feel good about the runs, however I feel like I have been cheating 'cos I have been running on the treadmill. I guess it would not be my best until I run the distance in the time outside... Planning to do a long run tomorrow for 25 km