| Keiko vs King | 23–10 | 69.70% |
| Keiko vs Steve | 23–8 | 74.19% |
| Keiko vs Kazuya | 18–12 | 60.00% |
| Keiko vs Miary Zo | 16–12 | 57.14% |
| Keiko vs Reina | 9–7 | 56.25% |
| Keiko vs Law | 14–1 | 93.33% |
| Keiko vs Hwoarang | 12–2 | 85.71% |
| Keiko vs Bryan | 7–7 | 50.00% |
| Keiko vs Asuka | 9–5 | 64.29% |
| Keiko vs Lili | 6–8 | 42.86% |
| Keiko vs Victor | 8–6 | 57.14% |
| Keiko vs Dragunov | 8–4 | 66.67% |
| Keiko vs Jin | 5–5–1 | 50.00% |
| Keiko vs Leroy | 7–4 | 63.64% |
| Keiko vs Armor King | 4–5 | 44.44% |
| Keiko vs Lee | 3–5 | 37.50% |
| Keiko vs Jack-8 | 6–1 | 85.71% |
| Keiko vs Jun | 6–1 | 85.71% |
| Keiko vs Azucena | 3–4 | 42.86% |
| Keiko vs Lidia | 5–2 | 71.43% |
| Keiko vs Yoshimitsu | 4–2 | 66.67% |
| Keiko vs Paul | 0–5 | 0.00% |
| Keiko vs Raven | 5–0 | 100.00% |
| Keiko vs Devil Jin | 1–3 | 25.00% |
| Keiko vs Lars | 3–1 | 75.00% |
| Keiko vs Eddy | 0–4 | 0.00% |
| Keiko vs Xiaoyu | 3–0 | 100.00% |
| Keiko vs Feng | 2–1 | 66.67% |
| Keiko vs Anna | 2–1 | 66.67% |
| Keiko vs Leo | 0–2 | 0.00% |
| Keiko vs Alisa | 1–1 | 50.00% |
| Keiko vs Shaheen | 2–0 | 100.00% |
| Keiko vs Nina | 2–0 | 100.00% |
| Keiko vs Zafina | 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.