| MarcinKoz vs Kazuya | 7–6 | 53.85% |
| MarcinKoz vs Eddy | 10–2 | 83.33% |
| MarcinKoz vs Reina | 6–4 | 60.00% |
| MarcinKoz vs King | 5–4 | 55.56% |
| MarcinKoz vs Xiaoyu | 6–3 | 66.67% |
| MarcinKoz vs Victor | 5–1 | 83.33% |
| MarcinKoz vs Paul | 4–1 | 80.00% |
| MarcinKoz vs Law | 5–0 | 100.00% |
| MarcinKoz vs Lee | 4–1 | 80.00% |
| MarcinKoz vs Yoshimitsu | 2–2 | 50.00% |
| MarcinKoz vs Steve | 3–1 | 75.00% |
| MarcinKoz vs Jack-8 | 3–1 | 75.00% |
| MarcinKoz vs Lili | 2–2 | 50.00% |
| MarcinKoz vs Dragunov | 3–1 | 75.00% |
| MarcinKoz vs Leo | 3–1 | 75.00% |
| MarcinKoz vs Claudio | 2–2 | 50.00% |
| MarcinKoz vs Nina | 3–1 | 75.00% |
| MarcinKoz vs Jun | 3–1 | 75.00% |
| MarcinKoz vs Azucena | 2–2 | 50.00% |
| MarcinKoz vs Hwoarang | 2–1 | 66.67% |
| MarcinKoz vs Devil Jin | 1–2 | 33.33% |
| MarcinKoz vs Feng | 2–1 | 66.67% |
| MarcinKoz vs Alisa | 3–0 | 100.00% |
| MarcinKoz vs Bryan | 1–1 | 50.00% |
| MarcinKoz vs Asuka | 2–0 | 100.00% |
| MarcinKoz vs Kuma | 0–2 | 0.00% |
| MarcinKoz vs Jin | 0–1 | 0.00% |
| MarcinKoz vs Zafina | 1–0 | 100.00% |
| MarcinKoz vs Leroy | 1–0 | 100.00% |
| MarcinKoz vs Raven | 1–0 | 100.00% |
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.