| Ianu vs Law | 20–1 | 95.24% |
| Ianu vs Jin | 15–3 | 83.33% |
| Ianu vs Paul | 10–2 | 83.33% |
| Ianu vs King | 10–2 | 83.33% |
| Ianu vs Kazuya | 11–0 | 100.00% |
| Ianu vs Lili | 9–0 | 100.00% |
| Ianu vs Dragunov | 7–1 | 87.50% |
| Ianu vs Jun | 8–0 | 100.00% |
| Ianu vs Lidia | 7–0 | 100.00% |
| Ianu vs Feng | 6–0 | 100.00% |
| Ianu vs Raven | 6–0 | 100.00% |
| Ianu vs Jack-8 | 4–1 | 80.00% |
| Ianu vs Devil Jin | 5–0 | 100.00% |
| Ianu vs Nina | 4–1 | 80.00% |
| Ianu vs Eddy | 4–1 | 80.00% |
| Ianu vs Yoshimitsu | 3–1 | 75.00% |
| Ianu vs Alisa | 4–0 | 100.00% |
| Ianu vs Reina | 4–0 | 100.00% |
| Ianu vs Victor | 4–0 | 100.00% |
| Ianu vs Hwoarang | 3–0 | 100.00% |
| Ianu vs Bryan | 3–0 | 100.00% |
| Ianu vs Steve | 1–2 | 33.33% |
| Ianu vs Lars | 1–2 | 33.33% |
| Ianu vs Azucena | 3–0 | 100.00% |
| Ianu vs Heihachi | 2–1 | 66.67% |
| Ianu vs Xiaoyu | 1–1 | 50.00% |
| Ianu vs Asuka | 2–0 | 100.00% |
| Ianu vs Leo | 2–0 | 100.00% |
| Ianu vs Miary Zo | 2–0 | 100.00% |
| Ianu vs Lee | 1–0 | 100.00% |
| Ianu vs Zafina | 1–0 | 100.00% |
| Ianu vs Armor King | 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.