Running Wednesday - with a hick up

Yesterday I did a running training. I wanted to do a long one and decided halfway that I was going to make it a half marathon. Unfortunately my watch restarted suddenly around 14.5 kilometers (maybe it overheated or I sweated too much?), so I don't have the run as a single take. In fact it didn't even save the trip I was doing before the restart, so I had to add it manually (and guess the exact distance and time). The result can be seen below. I did about 21.5 km in 1 hour and 36 minutes. Not bad, but the last couple of kilometers were really tough...