| Isamu vs Law | 8–11 | 42.11% |
| Isamu vs Dragunov | 6–12 | 33.33% |
| Isamu vs Yoshimitsu | 13–4 | 76.47% |
| Isamu vs Steve | 7–10 | 41.18% |
| Isamu vs Jin | 7–8 | 46.67% |
| Isamu vs Alisa | 9–6 | 60.00% |
| Isamu vs Reina | 4–11 | 26.67% |
| Isamu vs King | 9–5 | 64.29% |
| Isamu vs Lili | 6–7 | 46.15% |
| Isamu vs Kazuya | 4–8 | 33.33% |
| Isamu vs Lidia | 4–8 | 33.33% |
| Isamu vs Nina | 2–8 | 20.00% |
| Isamu vs Heihachi | 5–4 | 55.56% |
| Isamu vs Jun | 4–4 | 50.00% |
| Isamu vs Eddy | 3–5 | 37.50% |
| Isamu vs Hwoarang | 3–4 | 42.86% |
| Isamu vs Devil Jin | 0–6 | 0.00% |
| Isamu vs Lee | 1–5 | 16.67% |
| Isamu vs Kuma | 0–6 | 0.00% |
| Isamu vs Victor | 4–2 | 66.67% |
| Isamu vs Bryan | 0–4 | 0.00% |
| Isamu vs Azucena | 2–2 | 50.00% |
| Isamu vs Xiaoyu | 2–1 | 66.67% |
| Isamu vs Leo | 2–1 | 66.67% |
| Isamu vs Leroy | 2–1 | 66.67% |
| Isamu vs Paul | 0–2 | 0.00% |
| Isamu vs Lars | 2–0 | 100.00% |
| Isamu vs Zafina | 2–0 | 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.