I was going to catch tyranitar with a pokeball and caught it so I was wondering is there any way to predict if your going to get a critical capture is there a formula if there is please show me.
No it is just by chance just as it would be if you were going to find a shiny. You could attempt to predict but it would be very likly to be wrong. This s the formula =Critical Capture = floor((255,CatchValue) * Multiplier)