| WillemDafoo vs Kazuya | 114–87 | 56.72% |
| WillemDafoo vs Hwoarang | 93–76 | 55.03% |
| WillemDafoo vs Bryan | 103–64 | 61.68% |
| WillemDafoo vs King | 93–72 | 56.36% |
| WillemDafoo vs Azucena | 73–75 | 49.32% |
| WillemDafoo vs Steve | 88–56 | 61.11% |
| WillemDafoo vs Jin | 75–63 | 54.35% |
| WillemDafoo vs Reina | 78–60 | 56.52% |
| WillemDafoo vs Jun | 64–71 | 47.41% |
| WillemDafoo vs Devil Jin | 58–50 | 53.70% |
| WillemDafoo vs Heihachi | 58–48–1 | 54.72% |
| WillemDafoo vs Anna | 50–55 | 47.62% |
| WillemDafoo vs Asuka | 49–55 | 47.12% |
| WillemDafoo vs Law | 51–51 | 50.00% |
| WillemDafoo vs Lee | 48–54 | 47.06% |
| WillemDafoo vs Yoshimitsu | 54–46 | 54.00% |
| WillemDafoo vs Dragunov | 44–55 | 44.44% |
| WillemDafoo vs Lili | 35–50 | 41.18% |
| WillemDafoo vs Feng | 51–32 | 61.45% |
| WillemDafoo vs Lars | 53–22 | 70.67% |
| WillemDafoo vs Paul | 40–32 | 55.56% |
| WillemDafoo vs Xiaoyu | 27–41 | 39.71% |
| WillemDafoo vs Nina | 25–42 | 37.31% |
| WillemDafoo vs Jack-8 | 37–26 | 58.73% |
| WillemDafoo vs Leroy | 33–26 | 55.93% |
| WillemDafoo vs Leo | 29–28 | 50.88% |
| WillemDafoo vs Lidia | 37–18 | 67.27% |
| WillemDafoo vs Clive | 20–24 | 45.45% |
| WillemDafoo vs Claudio | 31–11 | 73.81% |
| WillemDafoo vs Zafina | 19–22 | 46.34% |
| WillemDafoo vs Shaheen | 21–16 | 56.76% |
| WillemDafoo vs Victor | 27–10 | 72.97% |
| WillemDafoo vs Fahkumram | 14–23 | 37.84% |
| WillemDafoo vs Raven | 18–13 | 58.06% |
| WillemDafoo vs Alisa | 11–17 | 39.29% |
| WillemDafoo vs Eddy | 9–15 | 37.50% |
| WillemDafoo vs Panda | 10–12 | 45.45% |
| WillemDafoo vs Kuma | 5–13 | 27.78% |
| WillemDafoo vs Miary Zo | 5–2 | 71.43% |
| WillemDafoo vs Armor King | 3–2 | 60.00% |
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.