| Willząb vs Kazuya | 57–46 | 55.34% |
| Willząb vs Jin | 43–39 | 52.44% |
| Willząb vs Bryan | 37–35 | 51.39% |
| Willząb vs Hwoarang | 32–35 | 47.76% |
| Willząb vs King | 40–21 | 65.57% |
| Willząb vs Dragunov | 39–19 | 67.24% |
| Willząb vs Law | 35–20 | 63.64% |
| Willząb vs Reina | 28–26 | 51.85% |
| Willząb vs Steve | 31–17 | 64.58% |
| Willząb vs Lili | 24–23 | 51.06% |
| Willząb vs Paul | 24–19 | 55.81% |
| Willząb vs Yoshimitsu | 22–21 | 51.16% |
| Willząb vs Devil Jin | 28–13 | 68.29% |
| Willząb vs Heihachi | 25–16 | 60.98% |
| Willząb vs Xiaoyu | 19–16 | 54.29% |
| Willząb vs Eddy | 21–12 | 63.64% |
| Willząb vs Anna | 17–16 | 51.52% |
| Willząb vs Alisa | 23–9 | 71.88% |
| Willząb vs Lee | 21–10 | 67.74% |
| Willząb vs Clive | 19–11 | 63.33% |
| Willząb vs Asuka | 15–11 | 57.69% |
| Willząb vs Fahkumram | 18–4 | 81.82% |
| Willząb vs Feng | 13–7 | 65.00% |
| Willząb vs Victor | 12–8 | 60.00% |
| Willząb vs Armor King | 14–6 | 70.00% |
| Willząb vs Nina | 11–8 | 57.89% |
| Willząb vs Miary Zo | 11–7 | 61.11% |
| Willząb vs Lars | 9–7 | 56.25% |
| Willząb vs Leroy | 9–7 | 56.25% |
| Willząb vs Jun | 12–3 | 80.00% |
| Willząb vs Azucena | 6–9 | 40.00% |
| Willząb vs Lidia | 8–6 | 57.14% |
| Willząb vs Raven | 5–8 | 38.46% |
| Willząb vs Claudio | 6–6 | 50.00% |
| Willząb vs Jack-8 | 9–2 | 81.82% |
| Willząb vs Leo | 7–4 | 63.64% |
| Willząb vs Kuma | 5–2 | 71.43% |
| Willząb vs Zafina | 5–2 | 71.43% |
| Willząb vs Shaheen | 1–4 | 20.00% |
| Willząb vs Panda | 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.