How can I make my animation to cover a particular distance?

Hey Guys! i'm making an 3d infinite runner like subway surfers. I've three lanes and I've used a rolling animation in order to change the lanes. But there is problem. When the animation is executed the player rolls of to another lane but not exactly at the centre of it. Maybe the animation sequence is not covering the required distance to go from one lane centre to another.

What should I do to prevent this. Should I increase the size of the player or reduce the size of the lanes.

I've downloaded the animation from the unity asset store. Asset named Parkour Animations.

Please Help ThankYou.