| Iron Assassin vs Hwoarang | 11–21 | 34.38% |
| Iron Assassin vs Lidia | 7–23 | 23.33% |
| Iron Assassin vs Reina | 10–18 | 35.71% |
| Iron Assassin vs Heihachi | 7–19 | 26.92% |
| Iron Assassin vs King | 11–14 | 44.00% |
| Iron Assassin vs Steve | 13–12 | 52.00% |
| Iron Assassin vs Jin | 9–15 | 37.50% |
| Iron Assassin vs Jun | 8–12 | 40.00% |
| Iron Assassin vs Kazuya | 7–11 | 38.89% |
| Iron Assassin vs Bryan | 4–13 | 23.53% |
| Iron Assassin vs Dragunov | 7–9 | 43.75% |
| Iron Assassin vs Nina | 5–8 | 38.46% |
| Iron Assassin vs Lee | 5–6 | 45.45% |
| Iron Assassin vs Azucena | 4–7 | 36.36% |
| Iron Assassin vs Eddy | 1–10 | 9.09% |
| Iron Assassin vs Lili | 5–5 | 50.00% |
| Iron Assassin vs Leroy | 3–7 | 30.00% |
| Iron Assassin vs Alisa | 4–5 | 44.44% |
| Iron Assassin vs Law | 4–4 | 50.00% |
| Iron Assassin vs Yoshimitsu | 4–4 | 50.00% |
| Iron Assassin vs Devil Jin | 3–5 | 37.50% |
| Iron Assassin vs Leo | 4–4 | 50.00% |
| Iron Assassin vs Xiaoyu | 1–6 | 14.29% |
| Iron Assassin vs Victor | 5–2 | 71.43% |
| Iron Assassin vs Raven | 5–2 | 71.43% |
| Iron Assassin vs Asuka | 5–1 | 83.33% |
| Iron Assassin vs Lars | 2–4 | 33.33% |
| Iron Assassin vs Claudio | 4–2 | 66.67% |
| Iron Assassin vs Paul | 1–4 | 20.00% |
| Iron Assassin vs Kuma | 1–4 | 20.00% |
| Iron Assassin vs Clive | 1–4 | 20.00% |
| Iron Assassin vs Feng | 2–2 | 50.00% |
| Iron Assassin vs Shaheen | 2–1 | 66.67% |
| Iron Assassin vs Jack-8 | 1–1 | 50.00% |
| Iron Assassin vs Zafina | 2–0 | 100.00% |
| Iron Assassin vs Panda | 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.