Casey O'Neill

Where the 1598.0 rating comes from

From 9 bouts played between 20 February 2021 and 19 September 2026, and from them alone. Every line below was written at computation time: nothing is recomputed to show this page.

How to read this

On the right: the change this bout produced, then the value before → after. A line's arrival value is the next line's starting value, down to the starting rating given to every newcomer. A ±0.0 is a counted bout that did not move the rating, a walkover for instance.

9 bouts, from the most recent to the first

19/09/26 · UFC 331 · early preliminary card · detail
+20.61577.4 → 1598.0
28/03/26 · UFC Fight Night: Adesanya vs. Pyfer · preliminary card · detail
+21.91555.4 → 1577.4
18/08/24 · UFC 305 · preliminary card · detail
+26.51528.9 → 1555.4
16/12/23 · UFC 296 · preliminary card · detail
−26.11555.0 → 1528.9
beaten by Jennifer Maia
18/03/23 · UFC 286 · main card · detail
−28.11583.1 → 1555.0
12/02/22 · UFC 271 · preliminary card · detail
+17.51565.7 → 1583.1
02/10/21 · UFC Fight Night: Santos vs. Walker · preliminary card · detail
+20.71545.0 → 1565.7
19/06/21 · UFC on ESPN: The Korean Zombie vs. Ige · preliminary card · detail
+22.71522.3 → 1545.0
20/02/21 · UFC Fight Night: Blaydes vs. Lewis · preliminary card · detail
+22.31500.0 → 1522.3

Only the bouts the source publishes appear; what is missing is listed. The source gives the day, not the hour: two bouts on the same day are ordered by a reproducible rule, which is not necessarily the real order.