| Willes vs Eddy | 31–57 | 35.23% |
| Willes vs King | 35–31 | 53.03% |
| Willes vs Kazuya | 30–24 | 55.56% |
| Willes vs Reina | 28–25 | 52.83% |
| Willes vs Jin | 27–23 | 54.00% |
| Willes vs Hwoarang | 24–18 | 57.14% |
| Willes vs Steve | 26–13 | 66.67% |
| Willes vs Jun | 18–20 | 47.37% |
| Willes vs Claudio | 11–16 | 40.74% |
| Willes vs Dragunov | 15–11 | 57.69% |
| Willes vs Lili | 17–8 | 68.00% |
| Willes vs Bryan | 12–10 | 54.55% |
| Willes vs Law | 13–8 | 61.90% |
| Willes vs Yoshimitsu | 11–10 | 52.38% |
| Willes vs Asuka | 11–10 | 52.38% |
| Willes vs Paul | 13–6 | 68.42% |
| Willes vs Devil Jin | 9–10 | 47.37% |
| Willes vs Lars | 5–14 | 26.32% |
| Willes vs Nina | 11–7 | 61.11% |
| Willes vs Leroy | 6–11 | 35.29% |
| Willes vs Xiaoyu | 8–8 | 50.00% |
| Willes vs Lee | 8–8 | 50.00% |
| Willes vs Victor | 5–11 | 31.25% |
| Willes vs Jack-8 | 7–7 | 50.00% |
| Willes vs Leo | 7–7 | 50.00% |
| Willes vs Azucena | 7–6 | 53.85% |
| Willes vs Alisa | 2–8 | 20.00% |
| Willes vs Shaheen | 6–4 | 60.00% |
| Willes vs Feng | 7–2 | 77.78% |
| Willes vs Kuma | 4–5 | 44.44% |
| Willes vs Panda | 0–4 | 0.00% |
| Willes vs Zafina | 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.