| Isekaii vs Heihachi | 17–13 | 56.67% |
| Isekaii vs Reina | 14–12 | 53.85% |
| Isekaii vs King | 6–12 | 33.33% |
| Isekaii vs Lili | 11–7 | 61.11% |
| Isekaii vs Jin | 11–6 | 64.71% |
| Isekaii vs Steve | 6–9 | 40.00% |
| Isekaii vs Leo | 2–13 | 13.33% |
| Isekaii vs Victor | 10–4 | 71.43% |
| Isekaii vs Law | 7–5 | 58.33% |
| Isekaii vs Azucena | 4–6 | 40.00% |
| Isekaii vs Paul | 2–7 | 22.22% |
| Isekaii vs Lee | 4–5 | 44.44% |
| Isekaii vs Jun | 6–2 | 75.00% |
| Isekaii vs Lidia | 4–4 | 50.00% |
| Isekaii vs Yoshimitsu | 4–3 | 57.14% |
| Isekaii vs Kazuya | 3–4 | 42.86% |
| Isekaii vs Hwoarang | 4–2 | 66.67% |
| Isekaii vs Asuka | 0–6 | 0.00% |
| Isekaii vs Leroy | 5–1 | 83.33% |
| Isekaii vs Xiaoyu | 2–3 | 40.00% |
| Isekaii vs Alisa | 2–3 | 40.00% |
| Isekaii vs Jack-8 | 1–3 | 25.00% |
| Isekaii vs Feng | 3–1 | 75.00% |
| Isekaii vs Dragunov | 0–4 | 0.00% |
| Isekaii vs Nina | 2–2 | 50.00% |
| Isekaii vs Bryan | 1–2 | 33.33% |
| Isekaii vs Lars | 2–1 | 66.67% |
| Isekaii vs Clive | 0–3 | 0.00% |
| Isekaii vs Kuma | 2–0 | 100.00% |
| Isekaii vs Panda | 2–0 | 100.00% |
| Isekaii vs Eddy | 0–2 | 0.00% |
| Isekaii vs Raven | 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.