| Willy vs Reina | 11–6 | 64.71% |
| Willy vs Hwoarang | 8–8 | 50.00% |
| Willy vs Lili | 14–2 | 87.50% |
| Willy vs Steve | 10–4 | 71.43% |
| Willy vs King | 9–4 | 69.23% |
| Willy vs Bryan | 6–6 | 50.00% |
| Willy vs Eddy | 4–8 | 33.33% |
| Willy vs Paul | 6–4 | 60.00% |
| Willy vs Asuka | 5–5 | 50.00% |
| Willy vs Devil Jin | 6–3 | 66.67% |
| Willy vs Dragunov | 3–6 | 33.33% |
| Willy vs Jin | 3–3 | 50.00% |
| Willy vs Nina | 4–2 | 66.67% |
| Willy vs Azucena | 6–0 | 100.00% |
| Willy vs Heihachi | 3–3 | 50.00% |
| Willy vs Miary Zo | 4–2 | 66.67% |
| Willy vs Law | 3–2 | 60.00% |
| Willy vs Kazuya | 3–2 | 60.00% |
| Willy vs Anna | 5–0 | 100.00% |
| Willy vs Jack-8 | 3–1 | 75.00% |
| Willy vs Jun | 4–0 | 100.00% |
| Willy vs Yoshimitsu | 1–2 | 33.33% |
| Willy vs Lee | 1–2 | 33.33% |
| Willy vs Panda | 2–1 | 66.67% |
| Willy vs Leroy | 2–1 | 66.67% |
| Willy vs Clive | 1–2 | 33.33% |
| Willy vs Alisa | 2–0 | 100.00% |
| Willy vs Claudio | 2–0 | 100.00% |
| Willy vs Fahkumram | 2–0 | 100.00% |
| Willy vs Leo | 1–0 | 100.00% |
| Willy vs Lars | 1–0 | 100.00% |
| Willy vs Zafina | 0–1 | 0.00% |
| Willy vs Armor King | 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.