| Irumachi vs Kazuya | 30–68 | 30.61% |
| Irumachi vs Jin | 35–57 | 38.04% |
| Irumachi vs King | 26–57 | 31.33% |
| Irumachi vs Dragunov | 22–41 | 34.92% |
| Irumachi vs Law | 19–42 | 31.15% |
| Irumachi vs Bryan | 15–31 | 32.61% |
| Irumachi vs Reina | 20–18 | 52.63% |
| Irumachi vs Steve | 13–22 | 37.14% |
| Irumachi vs Lili | 11–24 | 31.43% |
| Irumachi vs Lars | 15–20 | 42.86% |
| Irumachi vs Victor | 8–26 | 23.53% |
| Irumachi vs Hwoarang | 11–20 | 35.48% |
| Irumachi vs Paul | 11–18 | 37.93% |
| Irumachi vs Yoshimitsu | 8–21 | 27.59% |
| Irumachi vs Shaheen | 6–21 | 22.22% |
| Irumachi vs Jun | 6–21 | 22.22% |
| Irumachi vs Heihachi | 8–18 | 30.77% |
| Irumachi vs Azucena | 5–15 | 25.00% |
| Irumachi vs Lidia | 5–14 | 26.32% |
| Irumachi vs Xiaoyu | 4–14 | 22.22% |
| Irumachi vs Devil Jin | 3–15 | 16.67% |
| Irumachi vs Asuka | 6–11 | 35.29% |
| Irumachi vs Eddy | 1–16 | 5.88% |
| Irumachi vs Nina | 4–12 | 25.00% |
| Irumachi vs Kuma | 2–12 | 14.29% |
| Irumachi vs Jack-8 | 3–8 | 27.27% |
| Irumachi vs Alisa | 2–8 | 20.00% |
| Irumachi vs Lee | 4–6 | 40.00% |
| Irumachi vs Leo | 5–4 | 55.56% |
| Irumachi vs Feng | 1–7 | 12.50% |
| Irumachi vs Claudio | 1–7 | 12.50% |
| Irumachi vs Clive | 1–6 | 14.29% |
| Irumachi vs Panda | 0–6 | 0.00% |
| Irumachi vs Zafina | 1–4 | 20.00% |
| Irumachi vs Leroy | 2–3 | 40.00% |
| Irumachi vs Raven | 3–1 | 75.00% |
| Irumachi vs Anna | 1–2 | 33.33% |
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.