| Keys vs Reina | 9–11 | 45.00% |
| Keys vs Jun | 16–3 | 84.21% |
| Keys vs Paul | 15–3 | 83.33% |
| Keys vs Jin | 13–5 | 72.22% |
| Keys vs Kazuya | 10–7 | 58.82% |
| Keys vs Dragunov | 12–4 | 75.00% |
| Keys vs Law | 8–6 | 57.14% |
| Keys vs Hwoarang | 11–3 | 78.57% |
| Keys vs King | 9–3 | 75.00% |
| Keys vs Jack-8 | 7–5 | 58.33% |
| Keys vs Clive | 12–0 | 100.00% |
| Keys vs Yoshimitsu | 3–8 | 27.27% |
| Keys vs Azucena | 6–5 | 54.55% |
| Keys vs Bryan | 7–3 | 70.00% |
| Keys vs Eddy | 8–2 | 80.00% |
| Keys vs Alisa | 6–3 | 66.67% |
| Keys vs Lee | 6–3 | 66.67% |
| Keys vs Heihachi | 9–0 | 100.00% |
| Keys vs Leo | 6–2 | 75.00% |
| Keys vs Nina | 7–1 | 87.50% |
| Keys vs Lidia | 6–2 | 75.00% |
| Keys vs Steve | 5–1 | 83.33% |
| Keys vs Lili | 4–2 | 66.67% |
| Keys vs Claudio | 6–0 | 100.00% |
| Keys vs Lars | 5–0 | 100.00% |
| Keys vs Asuka | 2–2 | 50.00% |
| Keys vs Devil Jin | 4–0 | 100.00% |
| Keys vs Shaheen | 2–2 | 50.00% |
| Keys vs Zafina | 1–2 | 33.33% |
| Keys vs Xiaoyu | 2–0 | 100.00% |
| Keys vs Kuma | 2–0 | 100.00% |
| Keys vs Raven | 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.