| Irina vs King | 62–78 | 44.29% |
| Irina vs Jin | 68–66 | 50.75% |
| Irina vs Kazuya | 61–69 | 46.92% |
| Irina vs Reina | 59–51 | 53.64% |
| Irina vs Steve | 53–47 | 53.00% |
| Irina vs Bryan | 41–43 | 48.81% |
| Irina vs Heihachi | 40–43 | 48.19% |
| Irina vs Hwoarang | 36–45 | 44.44% |
| Irina vs Eddy | 30–48 | 38.46% |
| Irina vs Law | 33–44 | 42.86% |
| Irina vs Dragunov | 30–38 | 44.12% |
| Irina vs Jun | 28–37 | 43.08% |
| Irina vs Paul | 22–30 | 42.31% |
| Irina vs Yoshimitsu | 32–20 | 61.54% |
| Irina vs Lili | 20–32 | 38.46% |
| Irina vs Lidia | 22–27 | 44.90% |
| Irina vs Lars | 23–25 | 47.92% |
| Irina vs Clive | 24–23 | 51.06% |
| Irina vs Asuka | 18–28 | 39.13% |
| Irina vs Azucena | 17–27 | 38.64% |
| Irina vs Lee | 20–18 | 52.63% |
| Irina vs Feng | 26–11 | 70.27% |
| Irina vs Victor | 13–24 | 35.14% |
| Irina vs Claudio | 16–17 | 48.48% |
| Irina vs Nina | 15–16 | 48.39% |
| Irina vs Armor King | 13–17 | 43.33% |
| Irina vs Jack-8 | 11–13 | 45.83% |
| Irina vs Devil Jin | 13–11 | 54.17% |
| Irina vs Leo | 15–9 | 62.50% |
| Irina vs Alisa | 11–13 | 45.83% |
| Irina vs Leroy | 7–15 | 31.82% |
| Irina vs Fahkumram | 12–10 | 54.55% |
| Irina vs Xiaoyu | 9–12 | 42.86% |
| Irina vs Raven | 10–11 | 47.62% |
| Irina vs Anna | 12–9 | 57.14% |
| Irina vs Zafina | 8–9 | 47.06% |
| Irina vs Miary Zo | 4–11 | 26.67% |
| Irina vs Shaheen | 7–7 | 50.00% |
| Irina vs Kuma | 2–9 | 18.18% |
| Irina vs Panda | 6–3 | 66.67% |
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.