| Ken91 vs Eddy | 3–10 | 23.08% |
| Ken91 vs Kazuya | 5–7 | 41.67% |
| Ken91 vs King | 5–6 | 45.45% |
| Ken91 vs Hwoarang | 3–7 | 30.00% |
| Ken91 vs Jin | 5–4 | 55.56% |
| Ken91 vs Claudio | 3–6 | 33.33% |
| Ken91 vs Paul | 4–4 | 50.00% |
| Ken91 vs Steve | 3–4 | 42.86% |
| Ken91 vs Azucena | 4–3 | 57.14% |
| Ken91 vs Law | 2–4 | 33.33% |
| Ken91 vs Yoshimitsu | 1–5 | 16.67% |
| Ken91 vs Asuka | 2–4 | 33.33% |
| Ken91 vs Reina | 2–3 | 40.00% |
| Ken91 vs Bryan | 1–3 | 25.00% |
| Ken91 vs Devil Jin | 2–2 | 50.00% |
| Ken91 vs Dragunov | 3–0 | 100.00% |
| Ken91 vs Leo | 3–0 | 100.00% |
| Ken91 vs Nina | 1–2 | 33.33% |
| Ken91 vs Victor | 0–3 | 0.00% |
| Ken91 vs Xiaoyu | 2–0 | 100.00% |
| Ken91 vs Jack-8 | 1–1 | 50.00% |
| Ken91 vs Lili | 0–2 | 0.00% |
| Ken91 vs Lars | 2–0 | 100.00% |
| Ken91 vs Alisa | 1–1 | 50.00% |
| Ken91 vs Leroy | 1–1 | 50.00% |
| Ken91 vs Kuma | 0–1 | 0.00% |
| Ken91 vs Zafina | 1–0 | 100.00% |
| Ken91 vs Jun | 0–1 | 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.