| Kei Senpai vs Jin | 14–11 | 56.00% |
| Kei Senpai vs King | 9–10 | 47.37% |
| Kei Senpai vs Kazuya | 8–5 | 61.54% |
| Kei Senpai vs Reina | 5–8 | 38.46% |
| Kei Senpai vs Devil Jin | 3–9 | 25.00% |
| Kei Senpai vs Hwoarang | 5–6 | 45.45% |
| Kei Senpai vs Shaheen | 5–5 | 50.00% |
| Kei Senpai vs Clive | 7–2 | 77.78% |
| Kei Senpai vs Paul | 3–5 | 37.50% |
| Kei Senpai vs Law | 5–3 | 62.50% |
| Kei Senpai vs Yoshimitsu | 4–4 | 50.00% |
| Kei Senpai vs Bryan | 6–2 | 75.00% |
| Kei Senpai vs Dragunov | 3–5 | 37.50% |
| Kei Senpai vs Jun | 2–6 | 25.00% |
| Kei Senpai vs Eddy | 4–4 | 50.00% |
| Kei Senpai vs Alisa | 3–4 | 42.86% |
| Kei Senpai vs Claudio | 6–1 | 85.71% |
| Kei Senpai vs Xiaoyu | 2–4 | 33.33% |
| Kei Senpai vs Leo | 3–3 | 50.00% |
| Kei Senpai vs Victor | 2–4 | 33.33% |
| Kei Senpai vs Steve | 2–3 | 40.00% |
| Kei Senpai vs Asuka | 2–3 | 40.00% |
| Kei Senpai vs Lee | 4–1 | 80.00% |
| Kei Senpai vs Zafina | 2–3 | 40.00% |
| Kei Senpai vs Leroy | 2–3 | 40.00% |
| Kei Senpai vs Heihachi | 4–1 | 80.00% |
| Kei Senpai vs Lars | 2–2 | 50.00% |
| Kei Senpai vs Nina | 2–2 | 50.00% |
| Kei Senpai vs Fahkumram | 1–3 | 25.00% |
| Kei Senpai vs Lili | 1–2 | 33.33% |
| Kei Senpai vs Panda | 1–2 | 33.33% |
| Kei Senpai vs Jack-8 | 0–2 | 0.00% |
| Kei Senpai vs Feng | 0–2 | 0.00% |
| Kei Senpai vs Raven | 0–2 | 0.00% |
| Kei Senpai vs Kuma | 1–0 | 100.00% |
| Kei Senpai vs Anna | 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.