| Willie_willz vs Kazuya | 71–72 | 49.65% |
| Willie_willz vs King | 37–68 | 35.24% |
| Willie_willz vs Jin | 42–55 | 43.30% |
| Willie_willz vs Reina | 54–43 | 55.67% |
| Willie_willz vs Steve | 51–38 | 57.30% |
| Willie_willz vs Hwoarang | 51–37 | 57.95% |
| Willie_willz vs Bryan | 33–50 | 39.76% |
| Willie_willz vs Lili | 36–47 | 43.37% |
| Willie_willz vs Heihachi | 30–53 | 36.14% |
| Willie_willz vs Law | 31–30 | 50.82% |
| Willie_willz vs Paul | 21–35 | 37.50% |
| Willie_willz vs Dragunov | 19–34 | 35.85% |
| Willie_willz vs Azucena | 18–34 | 34.62% |
| Willie_willz vs Eddy | 27–23 | 54.00% |
| Willie_willz vs Leo | 19–30 | 38.78% |
| Willie_willz vs Lee | 24–23 | 51.06% |
| Willie_willz vs Xiaoyu | 12–31 | 27.91% |
| Willie_willz vs Armor King | 16–25 | 39.02% |
| Willie_willz vs Asuka | 23–17 | 57.50% |
| Willie_willz vs Jun | 16–24 | 40.00% |
| Willie_willz vs Raven | 15–23 | 39.47% |
| Willie_willz vs Devil Jin | 19–18 | 51.35% |
| Willie_willz vs Lars | 22–15 | 59.46% |
| Willie_willz vs Yoshimitsu | 16–16 | 50.00% |
| Willie_willz vs Leroy | 16–16 | 50.00% |
| Willie_willz vs Lidia | 14–16 | 46.67% |
| Willie_willz vs Nina | 16–13 | 55.17% |
| Willie_willz vs Claudio | 11–17 | 39.29% |
| Willie_willz vs Jack-8 | 11–14 | 44.00% |
| Willie_willz vs Victor | 15–10 | 60.00% |
| Willie_willz vs Anna | 13–12 | 52.00% |
| Willie_willz vs Feng | 9–15 | 37.50% |
| Willie_willz vs Alisa | 4–18 | 18.18% |
| Willie_willz vs Shaheen | 9–7 | 56.25% |
| Willie_willz vs Clive | 4–9 | 30.77% |
| Willie_willz vs Kuma | 3–8 | 27.27% |
| Willie_willz vs Zafina | 4–7 | 36.36% |
| Willie_willz vs Miary Zo | 4–5 | 44.44% |
| Willie_willz vs Fahkumram | 2–5 | 28.57% |
| Willie_willz vs Panda | 0–2 | 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.