| Key909 vs King | 5–13 | 27.78% |
| Key909 vs Hwoarang | 12–6 | 66.67% |
| Key909 vs Reina | 6–7 | 46.15% |
| Key909 vs Azucena | 8–4 | 66.67% |
| Key909 vs Jin | 4–7 | 36.36% |
| Key909 vs Steve | 8–3 | 72.73% |
| Key909 vs Kazuya | 5–4 | 55.56% |
| Key909 vs Eddy | 2–7 | 22.22% |
| Key909 vs Lars | 5–3 | 62.50% |
| Key909 vs Lee | 4–4 | 50.00% |
| Key909 vs Heihachi | 6–2 | 75.00% |
| Key909 vs Law | 2–5 | 28.57% |
| Key909 vs Yoshimitsu | 5–2 | 71.43% |
| Key909 vs Lili | 4–3 | 57.14% |
| Key909 vs Dragunov | 4–3 | 57.14% |
| Key909 vs Jun | 1–6 | 14.29% |
| Key909 vs Asuka | 2–4 | 33.33% |
| Key909 vs Devil Jin | 5–1 | 83.33% |
| Key909 vs Bryan | 4–1 | 80.00% |
| Key909 vs Alisa | 4–1 | 80.00% |
| Key909 vs Claudio | 2–3 | 40.00% |
| Key909 vs Leo | 0–4 | 0.00% |
| Key909 vs Paul | 2–1 | 66.67% |
| Key909 vs Xiaoyu | 2–1 | 66.67% |
| Key909 vs Feng | 2–1 | 66.67% |
| Key909 vs Kuma | 1–2 | 33.33% |
| Key909 vs Raven | 1–2 | 33.33% |
| Key909 vs Fahkumram | 1–2 | 33.33% |
| Key909 vs Leroy | 0–2 | 0.00% |
| Key909 vs Lidia | 2–0 | 100.00% |
| Key909 vs Clive | 2–0 | 100.00% |
| Key909 vs Victor | 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.