Grace can just shape-shift into a mouse (Specially a mouse that's is faster than a cheetah...there is such thing I just forgot the type of mouse) and easily win
She won't win, especially against someone(beastboy)who can Transform into any animal in the world, even the Alien one's with Superspeed and Strength.Even Cheetah fight Ww on a regular basis,known to be her Equal and rival both Physically and powerwise grace stands no chance
First day she was still really do really really she really really did do some really really do she really really did she really really was really really