[GuidoK]

Ocon couldn't get past Verstappen on the straight, see the footage.
If Ocon placed his car on the inside, Verstappen wouldn't be able to follow the racing line, because Ocon would be there then.

Ocon should have made sure that he didn't fall behind when entering the straight, but instead he let a 10 car gap fall, creating the situation for himself that despite his better tyres, and despite DRS he couldn't make up for that gap and pass Verstappen without hindering him. It was a very very poorly orchestrated move. And he decided not to back down and try again and wait for a better oppertunity, instead he decided to hold his ground resulting in the crash. Only serves him right that he got punished for it by the FIA. 10sec. stop/go and 3 penalty points. Not that those points are going to hurt him, the chances that he's in F1 next year are slim.