Note: We have three ways that we derive biggest “upsets” based on points difference between winner and loser.

“Most Noteworthy” (X minus Y / normalized by division)

“Most Noteworthy – Glicko” (GlickoX minus GlickoY)

“Most Lopsided” (X divided by Y)

Most Noteworthy: Walt Harris KO(1) Alexey Oleynik

While not a betting upset, Oleynik was fringe Top 10 and Harris was still an unproven fighter prior to this.

Most Noteworthy (Glicko): Kai Asakura TKO(1) Kyoji Horiguchi

Horiguchi was that rare fighter who’d occasionally show up at the bottom of the P4P lists, yet not actively competing in the UFC. Asakura knocked him out and down a few notches in the rankings.

Most Lopsided: Timofey Nastyukhin TKO(1) Eddie Alvarez

Alvarez was annihilated by a totally unknown fighter in his first One Championship fight. Maybe he took the competition a bit too lightly, or maybe he left a piece of himself in the UFC.