| Williams vs Jin | 5–6 | 45.45% |
| Williams vs Kazuya | 8–3 | 72.73% |
| Williams vs Nina | 7–4 | 63.64% |
| Williams vs King | 7–3 | 70.00% |
| Williams vs Hwoarang | 4–5 | 44.44% |
| Williams vs Lili | 5–4 | 55.56% |
| Williams vs Reina | 5–4 | 55.56% |
| Williams vs Law | 4–4 | 50.00% |
| Williams vs Claudio | 4–2 | 66.67% |
| Williams vs Steve | 4–1 | 80.00% |
| Williams vs Yoshimitsu | 4–0 | 100.00% |
| Williams vs Asuka | 2–2 | 50.00% |
| Williams vs Dragunov | 3–1 | 75.00% |
| Williams vs Jun | 2–2 | 50.00% |
| Williams vs Lidia | 2–2 | 50.00% |
| Williams vs Bryan | 2–1 | 66.67% |
| Williams vs Azucena | 3–0 | 100.00% |
| Williams vs Paul | 2–0 | 100.00% |
| Williams vs Shaheen | 0–2 | 0.00% |
| Williams vs Kuma | 2–0 | 100.00% |
| Williams vs Heihachi | 2–0 | 100.00% |
| Williams vs Devil Jin | 0–1 | 0.00% |
| Williams vs Lars | 1–0 | 100.00% |
| Williams vs Victor | 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.