Both pretty minor, especially for online.
The first instance I would say that the Red car was in its right to draft up behind Yellow and take the inside line coming up to 130R, Red probably did move back over a little early but nothing punishable. If anything the Yellow car should have let Red pass as he clearly had the speed and line advantage going into the corner. Look at learning to drive a defensive line (no offense intended).
The second instance going into the chicane is a little more hard to tell without watching a full replay without the pauses. My gut instinct tells me that Red left it a little late to dive bomb Yellow into the chicane, although this is a great place to do it you do need to leave plenty of braking in reserve to try and minimise the contact. Yellow also left the gate wide open again here and tried to shut it too late, if a opposition car is taking a different line (ie inside) there is nothing wrong with that, both drivers need to drive accordingly.
After the first part of the chicane and than the are now both going left I would say that Red has right of way, as Yellow is clearly no where near his B pillar and therefor Red has the line.
Contact is always hard to judge in a good tight race. Here in Australia, contact is a huge part of racing in the V8 Supercars and there are many contentious decisions by the stewards.
As a general rule if the car is any further than the B pillar back it must give way.
