| Isshin vs Kazuya | 23–18 | 56.10% |
| Isshin vs Reina | 25–8 | 75.76% |
| Isshin vs Jin | 12–17 | 41.38% |
| Isshin vs Steve | 9–16 | 36.00% |
| Isshin vs Dragunov | 12–12 | 50.00% |
| Isshin vs King | 10–13 | 43.48% |
| Isshin vs Lili | 12–8 | 60.00% |
| Isshin vs Yoshimitsu | 8–11 | 42.11% |
| Isshin vs Xiaoyu | 7–12 | 36.84% |
| Isshin vs Paul | 8–10 | 44.44% |
| Isshin vs Asuka | 6–12 | 33.33% |
| Isshin vs Hwoarang | 5–9 | 35.71% |
| Isshin vs Victor | 6–7 | 46.15% |
| Isshin vs Bryan | 6–6 | 50.00% |
| Isshin vs Jun | 7–5 | 58.33% |
| Isshin vs Devil Jin | 3–7 | 30.00% |
| Isshin vs Feng | 2–8 | 20.00% |
| Isshin vs Leo | 6–4 | 60.00% |
| Isshin vs Eddy | 3–7 | 30.00% |
| Isshin vs Azucena | 4–5 | 44.44% |
| Isshin vs Law | 3–5 | 37.50% |
| Isshin vs Claudio | 2–6 | 25.00% |
| Isshin vs Zafina | 3–5 | 37.50% |
| Isshin vs Leroy | 2–6 | 25.00% |
| Isshin vs Nina | 4–3 | 57.14% |
| Isshin vs Kuma | 1–6 | 14.29% |
| Isshin vs Panda | 5–2 | 71.43% |
| Isshin vs Lars | 3–3 | 50.00% |
| Isshin vs Jack-8 | 1–4 | 20.00% |
| Isshin vs Alisa | 0–4 | 0.00% |
| Isshin vs Raven | 2–2 | 50.00% |
| Isshin vs Lidia | 2–2 | 50.00% |
| Isshin vs Shaheen | 0–3 | 0.00% |
| Isshin vs Lee | 0–3 | 0.00% |
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.