| WillyWTF vs Jin | 21–11 | 65.62% |
| WillyWTF vs King | 14–10 | 58.33% |
| WillyWTF vs Reina | 10–12 | 45.45% |
| WillyWTF vs Yoshimitsu | 10–10 | 50.00% |
| WillyWTF vs Dragunov | 11–8 | 57.89% |
| WillyWTF vs Kazuya | 8–10 | 44.44% |
| WillyWTF vs Law | 6–10 | 37.50% |
| WillyWTF vs Lili | 7–9 | 43.75% |
| WillyWTF vs Lee | 7–8 | 46.67% |
| WillyWTF vs Hwoarang | 11–3 | 78.57% |
| WillyWTF vs Leroy | 9–3 | 75.00% |
| WillyWTF vs Steve | 5–6 | 45.45% |
| WillyWTF vs Lars | 3–8 | 27.27% |
| WillyWTF vs Jun | 7–3 | 70.00% |
| WillyWTF vs Paul | 2–7 | 22.22% |
| WillyWTF vs Leo | 4–4 | 50.00% |
| WillyWTF vs Xiaoyu | 4–3 | 57.14% |
| WillyWTF vs Jack-8 | 2–5 | 28.57% |
| WillyWTF vs Devil Jin | 4–3 | 57.14% |
| WillyWTF vs Azucena | 3–4 | 42.86% |
| WillyWTF vs Alisa | 4–2 | 66.67% |
| WillyWTF vs Kuma | 2–4 | 33.33% |
| WillyWTF vs Bryan | 3–1 | 75.00% |
| WillyWTF vs Shaheen | 1–3 | 25.00% |
| WillyWTF vs Nina | 1–3 | 25.00% |
| WillyWTF vs Eddy | 2–2 | 50.00% |
| WillyWTF vs Claudio | 0–3 | 0.00% |
| WillyWTF vs Zafina | 1–2 | 33.33% |
| WillyWTF vs Victor | 1–2 | 33.33% |
| WillyWTF vs Feng | 0–2 | 0.00% |
| WillyWTF vs Asuka | 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.