| K66_ain vs King | 4–23 | 14.81% |
| K66_ain vs Law | 6–19 | 24.00% |
| K66_ain vs Jin | 4–13 | 23.53% |
| K66_ain vs Devil Jin | 4–12 | 25.00% |
| K66_ain vs Hwoarang | 4–11 | 26.67% |
| K66_ain vs Steve | 7–8 | 46.67% |
| K66_ain vs Reina | 5–10 | 33.33% |
| K66_ain vs Eddy | 7–8 | 46.67% |
| K66_ain vs Kazuya | 3–11 | 21.43% |
| K66_ain vs Yoshimitsu | 7–6 | 53.85% |
| K66_ain vs Lars | 6–6 | 50.00% |
| K66_ain vs Bryan | 4–6 | 40.00% |
| K66_ain vs Jun | 2–7 | 22.22% |
| K66_ain vs Feng | 3–5 | 37.50% |
| K66_ain vs Nina | 4–4 | 50.00% |
| K66_ain vs Lili | 3–3 | 50.00% |
| K66_ain vs Shaheen | 3–3 | 50.00% |
| K66_ain vs Lee | 2–4 | 33.33% |
| K66_ain vs Xiaoyu | 2–3 | 40.00% |
| K66_ain vs Alisa | 0–5 | 0.00% |
| K66_ain vs Victor | 3–2 | 60.00% |
| K66_ain vs Paul | 2–2 | 50.00% |
| K66_ain vs Asuka | 1–3 | 25.00% |
| K66_ain vs Dragunov | 0–4 | 0.00% |
| K66_ain vs Leroy | 1–2 | 33.33% |
| K66_ain vs Jack-8 | 0–2 | 0.00% |
| K66_ain vs Leo | 0–2 | 0.00% |
| K66_ain vs Kuma | 1–1 | 50.00% |
| K66_ain vs Zafina | 0–2 | 0.00% |
| K66_ain vs Azucena | 1–1 | 50.00% |
| K66_ain vs Panda | 1–0 | 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.