[quote=GreivousKhan]
In the same time it took him to blow up previous grenade, take aim at her, judge the distance, transform his other grenade, then throw it. :K
[/quote]

He was already aiming at her, and it takes significantly less time to move your arm then run across a room.

Exploding the grenade was instantaneous on entering the pipe, which is also when your character began to run, so unimportant.

Transforming the grenade is nearly instantaneous, throwing a grenade takes a minuscule amount of time, my character calculated your movements on the run and threw to where you ended up, I'm not really sure where your character had time to stop and observe to the point where she knew his grenade was being prepared, and I especially don't know how she finished her run, and then fired a crossbow, before the grenade was anywhere near her.