Need race craft help

I race on a single monitor and I keep getting into incidents like in this example. I was wondering how I am supposed to see that the car is going much further left than I expect. When side by side I just guess where the other car is and in this instance like many others he dosent go where I excepted. But, I feel like I should’ve been able to easily avoid this. I’m trying to understand how do you guys would be able to see that and avoid turning in on him.

Irrelevant who is at fault I’m just trying to avoid more wrecks because this happens to me almost every race.