| Iann vs Steve | 7–13 | 35.00% |
| Iann vs Dragunov | 6–13 | 31.58% |
| Iann vs King | 9–7 | 56.25% |
| Iann vs Reina | 7–9 | 43.75% |
| Iann vs Jin | 7–8 | 46.67% |
| Iann vs Jun | 9–6 | 60.00% |
| Iann vs Lars | 6–7 | 46.15% |
| Iann vs Alisa | 6–6 | 50.00% |
| Iann vs Azucena | 7–5 | 58.33% |
| Iann vs Devil Jin | 5–6 | 45.45% |
| Iann vs Xiaoyu | 5–5 | 50.00% |
| Iann vs Lili | 7–3 | 70.00% |
| Iann vs Leo | 4–6 | 40.00% |
| Iann vs Shaheen | 4–6 | 40.00% |
| Iann vs Lee | 5–5 | 50.00% |
| Iann vs Kazuya | 3–5 | 37.50% |
| Iann vs Asuka | 4–4 | 50.00% |
| Iann vs Bryan | 4–3 | 57.14% |
| Iann vs Leroy | 3–4 | 42.86% |
| Iann vs Victor | 0–7 | 0.00% |
| Iann vs Eddy | 2–5 | 28.57% |
| Iann vs Yoshimitsu | 2–4 | 33.33% |
| Iann vs Nina | 3–3 | 50.00% |
| Iann vs Paul | 2–3 | 40.00% |
| Iann vs Hwoarang | 1–4 | 20.00% |
| Iann vs Raven | 4–1 | 80.00% |
| Iann vs Law | 1–2 | 33.33% |
| Iann vs Jack-8 | 3–0 | 100.00% |
| Iann vs Claudio | 2–1 | 66.67% |
| Iann vs Zafina | 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.