Running

The HM valley of desperation. 

The mentality hardest part is between 10th and 15th km. You feel tired but too much km are still missing. 
Train to overcome those negative thoughts and keep a “relaxing pace”. 

Then at 15th you can just put out everything you still have and it’s mentally downhill.

My latest half looks quite different. I’m more of a slow starter and I also don’t like spending too much energy navigating through the packed crowd that you inevitably encounter during a race start

Where are the other splits above 13th?
You have a good approach. 

But I was going for a PB and started from grid1.

It’s 1 miles splits so there is everything

Ah ok. I saw the km lower left and thought it was in metric system.