| Willo vs Eddy | 6–10 | 37.50% |
| Willo vs King | 5–6 | 45.45% |
| Willo vs Hwoarang | 5–6 | 45.45% |
| Willo vs Law | 2–7 | 22.22% |
| Willo vs Reina | 4–5 | 44.44% |
| Willo vs Kazuya | 3–5 | 37.50% |
| Willo vs Dragunov | 2–5 | 28.57% |
| Willo vs Shaheen | 2–5 | 28.57% |
| Willo vs Jin | 3–2 | 60.00% |
| Willo vs Bryan | 2–3 | 40.00% |
| Willo vs Steve | 1–4 | 20.00% |
| Willo vs Claudio | 4–1 | 80.00% |
| Willo vs Lee | 2–3 | 40.00% |
| Willo vs Raven | 1–4 | 20.00% |
| Willo vs Xiaoyu | 1–3 | 25.00% |
| Willo vs Asuka | 1–2 | 33.33% |
| Willo vs Devil Jin | 0–3 | 0.00% |
| Willo vs Lili | 1–2 | 33.33% |
| Willo vs Nina | 0–3 | 0.00% |
| Willo vs Alisa | 0–2 | 0.00% |
| Willo vs Jun | 0–2 | 0.00% |
| Willo vs Victor | 2–0 | 100.00% |
| Willo vs Clive | 0–2 | 0.00% |
| Willo vs Paul | 0–1 | 0.00% |
| Willo vs Yoshimitsu | 1–0 | 100.00% |
| Willo vs Lars | 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.