| Willy vs King | 15–16 | 48.39% |
| Willy vs Eddy | 15–10 | 60.00% |
| Willy vs Jin | 13–10 | 56.52% |
| Willy vs Reina | 17–6 | 73.91% |
| Willy vs Bryan | 15–4 | 78.95% |
| Willy vs Kazuya | 13–4 | 76.47% |
| Willy vs Steve | 5–11 | 31.25% |
| Willy vs Jun | 9–6 | 60.00% |
| Willy vs Fahkumram | 5–9 | 35.71% |
| Willy vs Paul | 10–3 | 76.92% |
| Willy vs Law | 9–4 | 69.23% |
| Willy vs Asuka | 5–6 | 45.45% |
| Willy vs Hwoarang | 4–6 | 40.00% |
| Willy vs Devil Jin | 7–3 | 70.00% |
| Willy vs Leo | 7–3 | 70.00% |
| Willy vs Victor | 8–2 | 80.00% |
| Willy vs Lidia | 9–1 | 90.00% |
| Willy vs Heihachi | 7–3 | 70.00% |
| Willy vs Clive | 8–2 | 80.00% |
| Willy vs Yoshimitsu | 5–4 | 55.56% |
| Willy vs Xiaoyu | 8–1 | 88.89% |
| Willy vs Jack-8 | 4–4 | 50.00% |
| Willy vs Dragunov | 4–4 | 50.00% |
| Willy vs Lili | 5–1 | 83.33% |
| Willy vs Claudio | 1–5 | 16.67% |
| Willy vs Azucena | 6–0 | 100.00% |
| Willy vs Raven | 4–2 | 66.67% |
| Willy vs Lars | 4–1 | 80.00% |
| Willy vs Alisa | 4–1 | 80.00% |
| Willy vs Shaheen | 5–0 | 100.00% |
| Willy vs Nina | 3–2 | 60.00% |
| Willy vs Anna | 4–1 | 80.00% |
| Willy vs Feng | 1–2 | 33.33% |
| Willy vs Lee | 2–1 | 66.67% |
| Willy vs Zafina | 3–0 | 100.00% |
| Willy vs Leroy | 1–2 | 33.33% |
| Willy vs Kuma | 2–0 | 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.