| Issei vs King | 14–12 | 53.85% |
| Issei vs Steve | 5–15 | 25.00% |
| Issei vs Kazuya | 7–10 | 41.18% |
| Issei vs Law | 4–12 | 25.00% |
| Issei vs Hwoarang | 5–11 | 31.25% |
| Issei vs Jin | 3–11 | 21.43% |
| Issei vs Bryan | 2–12 | 14.29% |
| Issei vs Lars | 9–5 | 64.29% |
| Issei vs Reina | 7–6 | 53.85% |
| Issei vs Eddy | 4–7 | 36.36% |
| Issei vs Fahkumram | 3–8 | 27.27% |
| Issei vs Dragunov | 3–5 | 37.50% |
| Issei vs Azucena | 1–7 | 12.50% |
| Issei vs Xiaoyu | 4–3 | 57.14% |
| Issei vs Lidia | 3–4 | 42.86% |
| Issei vs Devil Jin | 2–4 | 33.33% |
| Issei vs Leo | 1–5 | 16.67% |
| Issei vs Nina | 1–5 | 16.67% |
| Issei vs Raven | 0–6 | 0.00% |
| Issei vs Armor King | 1–5 | 16.67% |
| Issei vs Lili | 1–4 | 20.00% |
| Issei vs Victor | 2–3 | 40.00% |
| Issei vs Jack-8 | 1–3 | 25.00% |
| Issei vs Lee | 4–0 | 100.00% |
| Issei vs Leroy | 2–2 | 50.00% |
| Issei vs Paul | 1–2 | 33.33% |
| Issei vs Jun | 2–1 | 66.67% |
| Issei vs Yoshimitsu | 2–0 | 100.00% |
| Issei vs Asuka | 0–2 | 0.00% |
| Issei vs Feng | 0–2 | 0.00% |
| Issei vs Alisa | 1–1 | 50.00% |
| Issei vs Claudio | 1–1 | 50.00% |
| Issei vs Heihachi | 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.