| Bills vs Steve | 13–8 | 61.90% |
| Bills vs Eddy | 5–11 | 31.25% |
| Bills vs Law | 6–6 | 50.00% |
| Bills vs Hwoarang | 9–3 | 75.00% |
| Bills vs Asuka | 9–3 | 75.00% |
| Bills vs King | 7–4 | 63.64% |
| Bills vs Jin | 5–6 | 45.45% |
| Bills vs Bryan | 3–5 | 37.50% |
| Bills vs Xiaoyu | 2–5 | 28.57% |
| Bills vs Feng | 5–2 | 71.43% |
| Bills vs Dragunov | 3–4 | 42.86% |
| Bills vs Jun | 4–3 | 57.14% |
| Bills vs Victor | 3–4 | 42.86% |
| Bills vs Devil Jin | 1–5 | 16.67% |
| Bills vs Lidia | 5–1 | 83.33% |
| Bills vs Lili | 2–3 | 40.00% |
| Bills vs Leo | 3–2 | 60.00% |
| Bills vs Paul | 0–4 | 0.00% |
| Bills vs Kazuya | 2–2 | 50.00% |
| Bills vs Nina | 4–0 | 100.00% |
| Bills vs Lee | 2–2 | 50.00% |
| Bills vs Reina | 2–2 | 50.00% |
| Bills vs Yoshimitsu | 3–0 | 100.00% |
| Bills vs Lars | 1–2 | 33.33% |
| Bills vs Claudio | 2–1 | 66.67% |
| Bills vs Leroy | 2–1 | 66.67% |
| Bills vs Azucena | 2–1 | 66.67% |
| Bills vs Jack-8 | 0–2 | 0.00% |
| Bills vs Raven | 1–1 | 50.00% |
| Bills vs Shaheen | 1–0 | 100.00% |
| Bills vs Heihachi | 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.