| Iso4 vs Eddy | 1–19 | 5.00% |
| Iso4 vs Steve | 6–13 | 31.58% |
| Iso4 vs Bryan | 3–7 | 30.00% |
| Iso4 vs King | 3–6 | 33.33% |
| Iso4 vs Leroy | 0–8 | 0.00% |
| Iso4 vs Azucena | 1–7 | 12.50% |
| Iso4 vs Reina | 2–5 | 28.57% |
| Iso4 vs Jin | 2–4 | 33.33% |
| Iso4 vs Paul | 1–4 | 20.00% |
| Iso4 vs Lili | 0–5 | 0.00% |
| Iso4 vs Kazuya | 1–3 | 25.00% |
| Iso4 vs Lars | 0–4 | 0.00% |
| Iso4 vs Shaheen | 2–2 | 50.00% |
| Iso4 vs Lee | 4–0 | 100.00% |
| Iso4 vs Xiaoyu | 1–2 | 33.33% |
| Iso4 vs Devil Jin | 1–2 | 33.33% |
| Iso4 vs Alisa | 2–1 | 66.67% |
| Iso4 vs Nina | 2–1 | 66.67% |
| Iso4 vs Zafina | 2–1 | 66.67% |
| Iso4 vs Victor | 0–3 | 0.00% |
| Iso4 vs Yoshimitsu | 0–2 | 0.00% |
| Iso4 vs Hwoarang | 0–2 | 0.00% |
| Iso4 vs Asuka | 2–0 | 100.00% |
| Iso4 vs Feng | 0–2 | 0.00% |
| Iso4 vs Dragunov | 0–2 | 0.00% |
| Iso4 vs Leo | 0–2 | 0.00% |
| Iso4 vs Jun | 0–2 | 0.00% |
| Iso4 vs Law | 1–0 | 100.00% |
| Iso4 vs Kuma | 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.