| Diana Rex vs King | 10–0 | 100.00% |
| Diana Rex vs Law | 9–0 | 100.00% |
| Diana Rex vs Reina | 9–0 | 100.00% |
| Diana Rex vs Lee | 8–0 | 100.00% |
| Diana Rex vs Hwoarang | 6–0 | 100.00% |
| Diana Rex vs Steve | 6–0 | 100.00% |
| Diana Rex vs Dragunov | 6–0 | 100.00% |
| Diana Rex vs Asuka | 5–0 | 100.00% |
| Diana Rex vs Azucena | 5–0 | 100.00% |
| Diana Rex vs Lidia | 2–2 | 50.00% |
| Diana Rex vs Jin | 2–1 | 66.67% |
| Diana Rex vs Lars | 3–0 | 100.00% |
| Diana Rex vs Nina | 3–0 | 100.00% |
| Diana Rex vs Victor | 3–0 | 100.00% |
| Diana Rex vs Xiaoyu | 2–0 | 100.00% |
| Diana Rex vs Devil Jin | 2–0 | 100.00% |
| Diana Rex vs Alisa | 2–0 | 100.00% |
| Diana Rex vs Claudio | 2–0 | 100.00% |
| Diana Rex vs Leroy | 2–0 | 100.00% |
| Diana Rex vs Eddy | 2–0 | 100.00% |
| Diana Rex vs Clive | 2–0 | 100.00% |
| Diana Rex vs Kazuya | 0–1 | 0.00% |
| Diana Rex vs Lili | 1–0 | 100.00% |
| Diana Rex vs Leo | 1–0 | 100.00% |
| Diana Rex vs Shaheen | 1–0 | 100.00% |
| Diana Rex vs Jun | 1–0 | 100.00% |
| Diana Rex vs Fahkumram | 0–1 | 0.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.