| willy wacker vs Steve | 4–6 | 40.00% |
| willy wacker vs Zafina | 5–3 | 62.50% |
| willy wacker vs Asuka | 2–3 | 40.00% |
| willy wacker vs Jun | 2–3 | 40.00% |
| willy wacker vs Law | 2–2 | 50.00% |
| willy wacker vs Bryan | 0–4 | 0.00% |
| willy wacker vs Leo | 2–2 | 50.00% |
| willy wacker vs Kuma | 4–0 | 100.00% |
| willy wacker vs Raven | 1–3 | 25.00% |
| willy wacker vs Clive | 0–4 | 0.00% |
| willy wacker vs Xiaoyu | 1–2 | 33.33% |
| willy wacker vs King | 0–2 | 0.00% |
| willy wacker vs Yoshimitsu | 0–2 | 0.00% |
| willy wacker vs Jin | 0–2 | 0.00% |
| willy wacker vs Kazuya | 0–2 | 0.00% |
| willy wacker vs Reina | 1–1 | 50.00% |
| willy wacker vs Azucena | 1–1 | 50.00% |
| willy wacker vs Hwoarang | 0–1 | 0.00% |
| willy wacker vs Devil Jin | 1–0 | 100.00% |
| willy wacker vs Lili | 1–0 | 100.00% |
| willy wacker vs Anna | 1–0 | 100.00% |
| willy wacker vs Miary Zo | 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.