| Iron _Assasin vs Steve | 7–8 | 46.67% |
| Iron _Assasin vs Jin | 7–5 | 58.33% |
| Iron _Assasin vs Reina | 5–6 | 45.45% |
| Iron _Assasin vs King | 3–6 | 33.33% |
| Iron _Assasin vs Devil Jin | 4–5 | 44.44% |
| Iron _Assasin vs Xiaoyu | 4–4 | 50.00% |
| Iron _Assasin vs Asuka | 2–6 | 25.00% |
| Iron _Assasin vs Victor | 4–2 | 66.67% |
| Iron _Assasin vs Raven | 1–4 | 20.00% |
| Iron _Assasin vs Law | 4–0 | 100.00% |
| Iron _Assasin vs Shaheen | 2–2 | 50.00% |
| Iron _Assasin vs Nina | 4–0 | 100.00% |
| Iron _Assasin vs Dragunov | 1–2 | 33.33% |
| Iron _Assasin vs Panda | 2–1 | 66.67% |
| Iron _Assasin vs Eddy | 1–2 | 33.33% |
| Iron _Assasin vs Lidia | 1–2 | 33.33% |
| Iron _Assasin vs Clive | 1–2 | 33.33% |
| Iron _Assasin vs Yoshimitsu | 0–2 | 0.00% |
| Iron _Assasin vs Jack-8 | 2–0 | 100.00% |
| Iron _Assasin vs Lili | 2–0 | 100.00% |
| Iron _Assasin vs Kuma | 2–0 | 100.00% |
| Iron _Assasin vs Jun | 1–1 | 50.00% |
| Iron _Assasin vs Azucena | 0–2 | 0.00% |
| Iron _Assasin vs Hwoarang | 0–1 | 0.00% |
| Iron _Assasin vs Leo | 0–1 | 0.00% |
| Iron _Assasin vs Leroy | 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.