| Kacperek vs King | 9–15 | 37.50% |
| Kacperek vs Kazuya | 11–12 | 47.83% |
| Kacperek vs Heihachi | 11–11 | 50.00% |
| Kacperek vs Jin | 11–7 | 61.11% |
| Kacperek vs Reina | 11–7 | 61.11% |
| Kacperek vs Hwoarang | 6–10 | 37.50% |
| Kacperek vs Lili | 10–5 | 66.67% |
| Kacperek vs Steve | 6–5 | 54.55% |
| Kacperek vs Dragunov | 4–6 | 40.00% |
| Kacperek vs Eddy | 4–5 | 44.44% |
| Kacperek vs Yoshimitsu | 3–5 | 37.50% |
| Kacperek vs Bryan | 4–4 | 50.00% |
| Kacperek vs Asuka | 3–5 | 37.50% |
| Kacperek vs Nina | 5–3 | 62.50% |
| Kacperek vs Jun | 4–4 | 50.00% |
| Kacperek vs Lee | 6–0 | 100.00% |
| Kacperek vs Law | 3–2 | 60.00% |
| Kacperek vs Jack-8 | 4–1 | 80.00% |
| Kacperek vs Azucena | 4–1 | 80.00% |
| Kacperek vs Victor | 1–4 | 20.00% |
| Kacperek vs Lidia | 3–2 | 60.00% |
| Kacperek vs Lars | 1–3 | 25.00% |
| Kacperek vs Claudio | 2–1 | 66.67% |
| Kacperek vs Zafina | 2–1 | 66.67% |
| Kacperek vs Leroy | 1–2 | 33.33% |
| Kacperek vs Xiaoyu | 0–2 | 0.00% |
| Kacperek vs Devil Jin | 2–0 | 100.00% |
| Kacperek vs Kuma | 0–2 | 0.00% |
| Kacperek vs Alisa | 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.