| Willainn vs King | 75–68 | 52.45% |
| Willainn vs Jin | 65–57 | 53.28% |
| Willainn vs Armor King | 53–57 | 48.18% |
| Willainn vs Dragunov | 52–55 | 48.60% |
| Willainn vs Bryan | 38–55 | 40.86% |
| Willainn vs Kazuya | 52–40 | 56.52% |
| Willainn vs Yoshimitsu | 53–37 | 58.89% |
| Willainn vs Hwoarang | 36–47 | 43.37% |
| Willainn vs Reina | 29–37 | 43.94% |
| Willainn vs Paul | 39–26 | 60.00% |
| Willainn vs Steve | 39–26 | 60.00% |
| Willainn vs Lee | 30–30 | 50.00% |
| Willainn vs Fahkumram | 25–31 | 44.64% |
| Willainn vs Lili | 20–34 | 37.04% |
| Willainn vs Victor | 30–23 | 56.60% |
| Willainn vs Azucena | 28–22 | 56.00% |
| Willainn vs Heihachi | 29–21 | 58.00% |
| Willainn vs Lars | 23–25 | 47.92% |
| Willainn vs Clive | 26–20 | 56.52% |
| Willainn vs Law | 17–28 | 37.78% |
| Willainn vs Anna | 27–18 | 60.00% |
| Willainn vs Asuka | 16–28 | 36.36% |
| Willainn vs Leo | 18–22 | 45.00% |
| Willainn vs Claudio | 21–19 | 52.50% |
| Willainn vs Devil Jin | 20–19 | 51.28% |
| Willainn vs Jun | 17–21 | 44.74% |
| Willainn vs Xiaoyu | 17–17 | 50.00% |
| Willainn vs Nina | 9–21 | 30.00% |
| Willainn vs Alisa | 8–19 | 29.63% |
| Willainn vs Feng | 12–13 | 48.00% |
| Willainn vs Lidia | 15–8 | 65.22% |
| Willainn vs Leroy | 11–10 | 52.38% |
| Willainn vs Eddy | 5–15 | 25.00% |
| Willainn vs Miary Zo | 12–8 | 60.00% |
| Willainn vs Jack-8 | 10–7 | 58.82% |
| Willainn vs Raven | 3–10 | 23.08% |
| Willainn vs Shaheen | 5–6 | 45.45% |
| Willainn vs Kuma | 0–9 | 0.00% |
| Willainn vs Zafina | 0–8 | 0.00% |
| Willainn vs Panda | 1–3 | 25.00% |
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.