1-17 km: Good. Average pace was roughly between 5:10 and 5:15 min/km.
18-22 km: Not best. Average pace about 5:40 min/km. I have tried to think different reasons for this hurting hip, but again, it just needs heavy stretching.
Tip: I found a way how to keep running even hip begins to sense strained: do longer steps and run with your hip by twisting it (disclaimer: not a medical advice). My discover helped that much, that instead of two stars I gave free for this run!
Do you have your own stretching and running tips for a strained hip?