| Willy vs Jin | 107–123 | 46.52% |
| Willy vs Kazuya | 113–104 | 52.07% |
| Willy vs Heihachi | 111–94 | 54.15% |
| Willy vs King | 100–85 | 54.05% |
| Willy vs Reina | 109–72 | 60.22% |
| Willy vs Steve | 81–77 | 51.27% |
| Willy vs Bryan | 64–83 | 43.54% |
| Willy vs Hwoarang | 59–64 | 47.97% |
| Willy vs Paul | 45–52 | 46.39% |
| Willy vs Asuka | 46–48 | 48.94% |
| Willy vs Law | 43–50 | 46.24% |
| Willy vs Lee | 44–49 | 47.31% |
| Willy vs Dragunov | 42–46 | 47.73% |
| Willy vs Lidia | 55–33 | 62.50% |
| Willy vs Lili | 46–40 | 53.49% |
| Willy vs Jun | 38–45 | 45.78% |
| Willy vs Lars | 39–43 | 47.56% |
| Willy vs Azucena | 40–41 | 49.38% |
| Willy vs Yoshimitsu | 35–42 | 45.45% |
| Willy vs Xiaoyu | 36–31 | 53.73% |
| Willy vs Devil Jin | 36–31 | 53.73% |
| Willy vs Victor | 41–17 | 70.69% |
| Willy vs Feng | 25–25 | 50.00% |
| Willy vs Eddy | 26–22 | 54.17% |
| Willy vs Clive | 26–22 | 54.17% |
| Willy vs Leo | 23–21 | 52.27% |
| Willy vs Jack-8 | 24–19 | 55.81% |
| Willy vs Nina | 28–15 | 65.12% |
| Willy vs Raven | 18–24 | 42.86% |
| Willy vs Claudio | 12–22 | 35.29% |
| Willy vs Leroy | 10–23 | 30.30% |
| Willy vs Kuma | 13–16 | 44.83% |
| Willy vs Alisa | 7–17 | 29.17% |
| Willy vs Anna | 11–10 | 52.38% |
| Willy vs Fahkumram | 16–5 | 76.19% |
| Willy vs Shaheen | 10–6 | 62.50% |
| Willy vs Zafina | 6–10 | 37.50% |
| Willy vs Panda | 5–6 | 45.45% |
| Willy vs Armor King | 2–4 | 33.33% |
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.