| Isekaii vs Reina | 20–13 | 60.61% |
| Isekaii vs Heihachi | 18–14 | 56.25% |
| Isekaii vs Jin | 15–12 | 55.56% |
| Isekaii vs Lili | 14–10 | 58.33% |
| Isekaii vs King | 8–14 | 36.36% |
| Isekaii vs Victor | 11–6 | 64.71% |
| Isekaii vs Steve | 6–10 | 37.50% |
| Isekaii vs Leo | 2–13 | 13.33% |
| Isekaii vs Kazuya | 8–5 | 61.54% |
| Isekaii vs Law | 7–5 | 58.33% |
| Isekaii vs Azucena | 5–7 | 41.67% |
| Isekaii vs Yoshimitsu | 6–5 | 54.55% |
| Isekaii vs Hwoarang | 6–5 | 54.55% |
| Isekaii vs Asuka | 1–9 | 10.00% |
| Isekaii vs Paul | 2–7 | 22.22% |
| Isekaii vs Lee | 4–5 | 44.44% |
| Isekaii vs Leroy | 6–3 | 66.67% |
| Isekaii vs Dragunov | 2–6 | 25.00% |
| Isekaii vs Jun | 6–2 | 75.00% |
| Isekaii vs Lidia | 4–4 | 50.00% |
| Isekaii vs Bryan | 2–5 | 28.57% |
| Isekaii vs Xiaoyu | 2–4 | 33.33% |
| Isekaii vs Nina | 3–3 | 50.00% |
| Isekaii vs Jack-8 | 2–3 | 40.00% |
| Isekaii vs Alisa | 2–3 | 40.00% |
| Isekaii vs Clive | 2–3 | 40.00% |
| Isekaii vs Feng | 3–1 | 75.00% |
| Isekaii vs Eddy | 0–4 | 0.00% |
| Isekaii vs Lars | 2–1 | 66.67% |
| Isekaii vs Kuma | 2–1 | 66.67% |
| Isekaii vs Anna | 1–2 | 33.33% |
| Isekaii vs Devil Jin | 2–0 | 100.00% |
| Isekaii vs Panda | 2–0 | 100.00% |
| Isekaii vs Claudio | 0–1 | 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.