| J_Willy 318 vs Hwoarang | 12–16 | 42.86% |
| J_Willy 318 vs King | 6–15 | 28.57% |
| J_Willy 318 vs Jin | 6–14 | 30.00% |
| J_Willy 318 vs Kazuya | 9–11 | 45.00% |
| J_Willy 318 vs Law | 6–12 | 33.33% |
| J_Willy 318 vs Steve | 5–13 | 27.78% |
| J_Willy 318 vs Eddy | 5–13 | 27.78% |
| J_Willy 318 vs Lars | 9–8 | 52.94% |
| J_Willy 318 vs Jun | 7–8 | 46.67% |
| J_Willy 318 vs Lili | 8–6 | 57.14% |
| J_Willy 318 vs Reina | 6–7 | 46.15% |
| J_Willy 318 vs Asuka | 8–4 | 66.67% |
| J_Willy 318 vs Leo | 7–4 | 63.64% |
| J_Willy 318 vs Victor | 6–4 | 60.00% |
| J_Willy 318 vs Raven | 4–6 | 40.00% |
| J_Willy 318 vs Yoshimitsu | 4–5 | 44.44% |
| J_Willy 318 vs Bryan | 5–4 | 55.56% |
| J_Willy 318 vs Devil Jin | 2–6 | 25.00% |
| J_Willy 318 vs Dragunov | 2–4 | 33.33% |
| J_Willy 318 vs Azucena | 2–4 | 33.33% |
| J_Willy 318 vs Shaheen | 4–1 | 80.00% |
| J_Willy 318 vs Jack-8 | 2–2 | 50.00% |
| J_Willy 318 vs Feng | 0–4 | 0.00% |
| J_Willy 318 vs Claudio | 0–3 | 0.00% |
| J_Willy 318 vs Kuma | 1–2 | 33.33% |
| J_Willy 318 vs Xiaoyu | 2–0 | 100.00% |
| J_Willy 318 vs Lee | 0–2 | 0.00% |
| J_Willy 318 vs Zafina | 0–2 | 0.00% |
| J_Willy 318 vs Leroy | 2–0 | 100.00% |
| J_Willy 318 vs Paul | 0–1 | 0.00% |
| J_Willy 318 vs Nina | 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.