No, it is definitely an extreme diff fight between Asura Zoro and the hollow in the first chapter, it is a close one but Zoro wins at the end.
...Wait, you meant Yamamoto? Nah, casual Shinigamis just destroy him with their Reijatsu aura. Zoro's a fodder, he's even a fodder on his own verse, a cook rivals him, how embarassing.