| Mazen vs Jin | 35–46 | 43.21% |
| Mazen vs Kazuya | 27–41 | 39.71% |
| Mazen vs Reina | 33–14 | 70.21% |
| Mazen vs Hwoarang | 13–33 | 28.26% |
| Mazen vs Law | 18–27 | 40.00% |
| Mazen vs King | 17–24 | 41.46% |
| Mazen vs Heihachi | 19–18 | 51.35% |
| Mazen vs Victor | 11–21 | 34.38% |
| Mazen vs Lee | 16–14 | 53.33% |
| Mazen vs Steve | 13–15 | 46.43% |
| Mazen vs Yoshimitsu | 10–13 | 43.48% |
| Mazen vs Lili | 12–11 | 52.17% |
| Mazen vs Azucena | 5–15 | 25.00% |
| Mazen vs Alisa | 5–14 | 26.32% |
| Mazen vs Jack-8 | 9–9 | 50.00% |
| Mazen vs Dragunov | 6–10 | 37.50% |
| Mazen vs Jun | 6–10 | 37.50% |
| Mazen vs Devil Jin | 10–5 | 66.67% |
| Mazen vs Lars | 3–11 | 21.43% |
| Mazen vs Eddy | 2–12 | 14.29% |
| Mazen vs Kuma | 6–5 | 54.55% |
| Mazen vs Xiaoyu | 2–8 | 20.00% |
| Mazen vs Bryan | 0–10 | 0.00% |
| Mazen vs Feng | 3–7 | 30.00% |
| Mazen vs Nina | 5–5 | 50.00% |
| Mazen vs Lidia | 5–4 | 55.56% |
| Mazen vs Paul | 0–8 | 0.00% |
| Mazen vs Leo | 2–6 | 25.00% |
| Mazen vs Shaheen | 4–4 | 50.00% |
| Mazen vs Claudio | 3–3 | 50.00% |
| Mazen vs Raven | 2–4 | 33.33% |
| Mazen vs Clive | 2–2 | 50.00% |
| Mazen vs Asuka | 2–1 | 66.67% |
| Mazen vs Panda | 1–1 | 50.00% |
| Mazen vs Zafina | 1–1 | 50.00% |
| Mazen vs Leroy | 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.