Let's see. Just because. My two active characters in roleplays.

Wisp is a super-hero what manipulates light within a range of herself, making herself invisible and making illusions. ... Depending on the terrain, she could fare pretty well, dodging, resting up, striking from unexpected angles. If it's, like, Final Destination flat and they're all swarming her from all directions, maybe she can blind quite a few with lasers but otherwise she's screwed. If there's enough terrain for her to dodge, she can do that a lot more until she finally runs out of energy or accidentally bumps into an enemy which then grabs her and then she's done for. So, um. From 0 in the nightmare scenario to, like, 100+ depending on the terrain. She'd eventually run out of energy, though.

Mariette is a dark magical girl who makes portals. ... How are the normal people armed? If with their fists, then Mariette flies over their heads. She then just makes portals from under their feet to way too high into the air and watch them drop out of the skies like flies and dies. They cannot hurt her. That is, until she runs out of magic, then she falls and gets killed due to her low endurance. That said, she's kind of supported by a Mana Font, sooooo... ... ... 1,000 - 50,000? In a really broad range? She'd get really bored standing up there sending normal people to their crushing deaths for hours using her most low-cost portals. XD
That said, if normal people are allowed projectile weapons, the match will be a LOT shorter.