| Mai-Key vs Eddy | 8–23 | 25.81% |
| Mai-Key vs King | 15–15 | 50.00% |
| Mai-Key vs Reina | 8–20 | 28.57% |
| Mai-Key vs Kazuya | 16–10 | 61.54% |
| Mai-Key vs Bryan | 13–9 | 59.09% |
| Mai-Key vs Jin | 12–7 | 63.16% |
| Mai-Key vs Lili | 11–8 | 57.89% |
| Mai-Key vs Yoshimitsu | 14–4 | 77.78% |
| Mai-Key vs Steve | 10–8 | 55.56% |
| Mai-Key vs Dragunov | 10–8 | 55.56% |
| Mai-Key vs Azucena | 11–7 | 61.11% |
| Mai-Key vs Leo | 7–10 | 41.18% |
| Mai-Key vs Lee | 6–11 | 35.29% |
| Mai-Key vs Raven | 8–9 | 47.06% |
| Mai-Key vs Paul | 6–9 | 40.00% |
| Mai-Key vs Asuka | 5–9 | 35.71% |
| Mai-Key vs Alisa | 10–4 | 71.43% |
| Mai-Key vs Law | 8–4 | 66.67% |
| Mai-Key vs Feng | 6–6 | 50.00% |
| Mai-Key vs Lars | 6–6 | 50.00% |
| Mai-Key vs Jun | 5–7 | 41.67% |
| Mai-Key vs Hwoarang | 2–8 | 20.00% |
| Mai-Key vs Xiaoyu | 3–7 | 30.00% |
| Mai-Key vs Shaheen | 3–7 | 30.00% |
| Mai-Key vs Nina | 7–3 | 70.00% |
| Mai-Key vs Jack-8 | 1–8 | 11.11% |
| Mai-Key vs Zafina | 3–5 | 37.50% |
| Mai-Key vs Victor | 2–6 | 25.00% |
| Mai-Key vs Claudio | 2–4 | 33.33% |
| Mai-Key vs Kuma | 2–3 | 40.00% |
| Mai-Key vs Leroy | 1–4 | 20.00% |
| Mai-Key vs Lidia | 1–2 | 33.33% |
| Mai-Key vs Devil Jin | 2–0 | 100.00% |
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.