| Irrational vs King | 15–0 | 100.00% |
| Irrational vs Jin | 14–0 | 100.00% |
| Irrational vs Hwoarang | 10–0 | 100.00% |
| Irrational vs Xiaoyu | 8–0 | 100.00% |
| Irrational vs Kazuya | 8–0 | 100.00% |
| Irrational vs Jun | 8–0 | 100.00% |
| Irrational vs Yoshimitsu | 6–1 | 85.71% |
| Irrational vs Feng | 6–1 | 85.71% |
| Irrational vs Reina | 7–0 | 100.00% |
| Irrational vs Dragunov | 5–2 | 71.43% |
| Irrational vs Lili | 5–1 | 83.33% |
| Irrational vs Leo | 5–1 | 83.33% |
| Irrational vs Steve | 4–1 | 80.00% |
| Irrational vs Asuka | 4–0 | 100.00% |
| Irrational vs Heihachi | 2–2 | 50.00% |
| Irrational vs Law | 3–0 | 100.00% |
| Irrational vs Jack-8 | 2–1 | 66.67% |
| Irrational vs Lee | 3–0 | 100.00% |
| Irrational vs Eddy | 0–3 | 0.00% |
| Irrational vs Alisa | 2–0 | 100.00% |
| Irrational vs Bryan | 2–0 | 100.00% |
| Irrational vs Shaheen | 2–0 | 100.00% |
| Irrational vs Kuma | 2–0 | 100.00% |
| Irrational vs Azucena | 2–0 | 100.00% |
| Irrational vs Raven | 2–0 | 100.00% |
| Irrational vs Nina | 1–0 | 100.00% |
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.