| WillemDafoo vs Hwoarang | 127–100 | 55.95% |
| WillemDafoo vs Kazuya | 130–97 | 57.27% |
| WillemDafoo vs Bryan | 128–88 | 59.26% |
| WillemDafoo vs Jin | 102–87 | 53.97% |
| WillemDafoo vs King | 107–80 | 57.22% |
| WillemDafoo vs Reina | 96–75 | 56.14% |
| WillemDafoo vs Azucena | 84–85 | 49.70% |
| WillemDafoo vs Steve | 100–68 | 59.52% |
| WillemDafoo vs Jun | 71–78 | 47.65% |
| WillemDafoo vs Heihachi | 66–68–1 | 49.25% |
| WillemDafoo vs Law | 68–65 | 51.13% |
| WillemDafoo vs Lee | 63–67 | 48.46% |
| WillemDafoo vs Devil Jin | 66–61 | 51.97% |
| WillemDafoo vs Dragunov | 57–69 | 45.24% |
| WillemDafoo vs Lili | 56–68 | 45.16% |
| WillemDafoo vs Yoshimitsu | 64–55 | 53.78% |
| WillemDafoo vs Anna | 56–60 | 48.28% |
| WillemDafoo vs Asuka | 55–58 | 48.67% |
| WillemDafoo vs Paul | 53–52 | 50.48% |
| WillemDafoo vs Lars | 65–37 | 63.73% |
| WillemDafoo vs Feng | 57–40 | 58.76% |
| WillemDafoo vs Nina | 34–51 | 40.00% |
| WillemDafoo vs Leo | 40–39 | 50.63% |
| WillemDafoo vs Xiaoyu | 30–48 | 38.46% |
| WillemDafoo vs Leroy | 47–30 | 61.04% |
| WillemDafoo vs Jack-8 | 44–30 | 59.46% |
| WillemDafoo vs Lidia | 44–26 | 62.86% |
| WillemDafoo vs Clive | 26–32 | 44.83% |
| WillemDafoo vs Claudio | 38–17 | 69.09% |
| WillemDafoo vs Zafina | 24–28 | 46.15% |
| WillemDafoo vs Victor | 30–21 | 58.82% |
| WillemDafoo vs Raven | 30–21 | 58.82% |
| WillemDafoo vs Armor King | 20–28 | 41.67% |
| WillemDafoo vs Fahkumram | 19–26 | 42.22% |
| WillemDafoo vs Eddy | 18–25 | 41.86% |
| WillemDafoo vs Shaheen | 21–18 | 53.85% |
| WillemDafoo vs Alisa | 14–19 | 42.42% |
| WillemDafoo vs Miary Zo | 15–10 | 60.00% |
| WillemDafoo vs Panda | 11–12 | 47.83% |
| WillemDafoo vs Kuma | 5–13 | 27.78% |
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.