Serena easily won her battle against Ranya, meaning that despite their still being a day before the final matches, the first and second place of their year was pretty much confirmed to be between Serena and Kain.
The majority of the students were betting on Serena's final victory. After all, she still hadn't even needed to reveal another contract and all of her battles had ended in less than a minute so far. Fighting against her same-aged peers just appeared so effortless for her.