| Ishshal vs Jin | 18–21 | 46.15% |
| Ishshal vs Reina | 21–17 | 55.26% |
| Ishshal vs Dragunov | 9–25 | 26.47% |
| Ishshal vs Kazuya | 9–14 | 39.13% |
| Ishshal vs King | 12–9 | 57.14% |
| Ishshal vs Victor | 6–12 | 33.33% |
| Ishshal vs Hwoarang | 6–7 | 46.15% |
| Ishshal vs Bryan | 5–8 | 38.46% |
| Ishshal vs Steve | 5–8 | 38.46% |
| Ishshal vs Paul | 4–8 | 33.33% |
| Ishshal vs Lili | 1–11 | 8.33% |
| Ishshal vs Eddy | 4–8 | 33.33% |
| Ishshal vs Yoshimitsu | 4–7 | 36.36% |
| Ishshal vs Xiaoyu | 4–7 | 36.36% |
| Ishshal vs Jun | 6–5 | 54.55% |
| Ishshal vs Law | 5–5 | 50.00% |
| Ishshal vs Asuka | 2–8 | 20.00% |
| Ishshal vs Azucena | 5–4 | 55.56% |
| Ishshal vs Leroy | 2–6 | 25.00% |
| Ishshal vs Devil Jin | 2–5 | 28.57% |
| Ishshal vs Alisa | 4–3 | 57.14% |
| Ishshal vs Lee | 1–6 | 14.29% |
| Ishshal vs Lidia | 0–5 | 0.00% |
| Ishshal vs Lars | 0–4 | 0.00% |
| Ishshal vs Claudio | 0–4 | 0.00% |
| Ishshal vs Nina | 0–4 | 0.00% |
| Ishshal vs Zafina | 3–1 | 75.00% |
| Ishshal vs Leo | 2–1 | 66.67% |
| Ishshal vs Kuma | 2–1 | 66.67% |
| Ishshal vs Feng | 0–2 | 0.00% |
| Ishshal vs Shaheen | 0–2 | 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.