| William bass vs King | 17–26 | 39.53% |
| William bass vs Steve | 10–23 | 30.30% |
| William bass vs Law | 14–15 | 48.28% |
| William bass vs Hwoarang | 16–12 | 57.14% |
| William bass vs Kazuya | 7–16 | 30.43% |
| William bass vs Jin | 13–6 | 68.42% |
| William bass vs Reina | 10–9 | 52.63% |
| William bass vs Eddy | 7–10 | 41.18% |
| William bass vs Dragunov | 4–12 | 25.00% |
| William bass vs Jun | 5–11 | 31.25% |
| William bass vs Azucena | 11–5 | 68.75% |
| William bass vs Lidia | 7–9 | 43.75% |
| William bass vs Anna | 9–6 | 60.00% |
| William bass vs Bryan | 7–7 | 50.00% |
| William bass vs Asuka | 5–9 | 35.71% |
| William bass vs Feng | 7–7 | 50.00% |
| William bass vs Nina | 4–9 | 30.77% |
| William bass vs Heihachi | 2–10 | 16.67% |
| William bass vs Yoshimitsu | 4–7 | 36.36% |
| William bass vs Clive | 3–8 | 27.27% |
| William bass vs Lili | 4–6 | 40.00% |
| William bass vs Shaheen | 7–3 | 70.00% |
| William bass vs Lee | 3–7 | 30.00% |
| William bass vs Lars | 4–4 | 50.00% |
| William bass vs Paul | 2–5 | 28.57% |
| William bass vs Leo | 2–5 | 28.57% |
| William bass vs Victor | 2–5 | 28.57% |
| William bass vs Raven | 4–3 | 57.14% |
| William bass vs Jack-8 | 1–5 | 16.67% |
| William bass vs Claudio | 2–4 | 33.33% |
| William bass vs Devil Jin | 0–4 | 0.00% |
| William bass vs Zafina | 4–0 | 100.00% |
| William bass vs Alisa | 1–2 | 33.33% |
| William bass vs Kuma | 1–2 | 33.33% |
| William bass vs Panda | 2–1 | 66.67% |
| William bass vs Leroy | 1–1 | 50.00% |
| William bass vs Xiaoyu | 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.