| 4IRI vs Law | 1–9 | 10.00% |
| 4IRI vs Reina | 6–2 | 75.00% |
| 4IRI vs Yoshimitsu | 4–2 | 66.67% |
| 4IRI vs Jin | 0–5 | 0.00% |
| 4IRI vs Bryan | 2–3 | 40.00% |
| 4IRI vs Kazuya | 1–3 | 25.00% |
| 4IRI vs Steve | 1–3 | 25.00% |
| 4IRI vs Dragunov | 2–2 | 50.00% |
| 4IRI vs Claudio | 0–4 | 0.00% |
| 4IRI vs Hwoarang | 3–0 | 100.00% |
| 4IRI vs Lee | 1–2 | 33.33% |
| 4IRI vs Victor | 2–1 | 66.67% |
| 4IRI vs Xiaoyu | 1–1 | 50.00% |
| 4IRI vs Devil Jin | 0–2 | 0.00% |
| 4IRI vs Lili | 1–1 | 50.00% |
| 4IRI vs Nina | 1–1 | 50.00% |
| 4IRI vs Panda | 2–0 | 100.00% |
| 4IRI vs Jun | 0–2 | 0.00% |
| 4IRI vs Azucena | 0–2 | 0.00% |
| 4IRI vs Clive | 0–2 | 0.00% |
| 4IRI vs Paul | 0–1 | 0.00% |
| 4IRI vs King | 0–1 | 0.00% |
| 4IRI vs Feng | 1–0 | 100.00% |
| 4IRI vs Leo | 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.