Well, as far as speed and endurance seemed to be going, they looked to be evenly matched. At least so far. Really, despite the twists and turns she made in the crooked line to the docks, Cap was keeping pace with her. Not loosing any ground. In fact, he might just be gaining some. Maybe it was the weight of the shield on her back, or maybe it was just that the unmodified formula made him slightly faster than her. Heck, it could be simple experience and practice.
He'd probably get within arms reach of her by the time they got to her destination. She'd have to remedy that. Black Cat skidded to a stop, claws latching onto a closed dumpster and rending the metal with a screech like nails on a chalkboard. Once she was stopped and her feet firmly planted, she lifted the thing over her head and tossed it back towards him before too much trash could start to fall out onto her head.
Not even waiting to see if it connected, she turned back around and began running again. If there had been any doubt about her ability to take a hit, it was rendered moot by that show of strength.