| Marek vs Steve | 8–8 | 50.00% |
| Marek vs Jin | 3–7 | 30.00% |
| Marek vs Law | 2–6 | 25.00% |
| Marek vs King | 5–3 | 62.50% |
| Marek vs Reina | 4–2 | 66.67% |
| Marek vs Kazuya | 5–0 | 100.00% |
| Marek vs Lili | 1–4 | 20.00% |
| Marek vs Leroy | 3–2 | 60.00% |
| Marek vs Jun | 3–2 | 60.00% |
| Marek vs Eddy | 1–4 | 20.00% |
| Marek vs Yoshimitsu | 0–4 | 0.00% |
| Marek vs Claudio | 3–1 | 75.00% |
| Marek vs Lee | 2–2 | 50.00% |
| Marek vs Azucena | 0–4 | 0.00% |
| Marek vs Heihachi | 2–2 | 50.00% |
| Marek vs Clive | 1–3 | 25.00% |
| Marek vs Dragunov | 0–3 | 0.00% |
| Marek vs Victor | 2–1 | 66.67% |
| Marek vs Fahkumram | 1–2 | 33.33% |
| Marek vs Miary Zo | 2–1 | 66.67% |
| Marek vs Hwoarang | 0–2 | 0.00% |
| Marek vs Asuka | 1–1 | 50.00% |
| Marek vs Devil Jin | 0–2 | 0.00% |
| Marek vs Feng | 0–2 | 0.00% |
| Marek vs Lars | 0–1 | 0.00% |
| Marek vs Zafina | 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.