| Mustafa Şahin vs Kazuya | 10–5 | 66.67% |
| Mustafa Şahin vs Clive | 10–4 | 71.43% |
| Mustafa Şahin vs Jin | 8–5 | 61.54% |
| Mustafa Şahin vs King | 10–2 | 83.33% |
| Mustafa Şahin vs Fahkumram | 6–6 | 50.00% |
| Mustafa Şahin vs Yoshimitsu | 8–2 | 80.00% |
| Mustafa Şahin vs Hwoarang | 7–2 | 77.78% |
| Mustafa Şahin vs Reina | 7–2 | 77.78% |
| Mustafa Şahin vs Devil Jin | 2–6 | 25.00% |
| Mustafa Şahin vs Lili | 4–4 | 50.00% |
| Mustafa Şahin vs Nina | 5–3 | 62.50% |
| Mustafa Şahin vs Law | 3–4 | 42.86% |
| Mustafa Şahin vs Steve | 3–4 | 42.86% |
| Mustafa Şahin vs Asuka | 4–2 | 66.67% |
| Mustafa Şahin vs Lee | 2–4 | 33.33% |
| Mustafa Şahin vs Bryan | 4–1 | 80.00% |
| Mustafa Şahin vs Heihachi | 3–2 | 60.00% |
| Mustafa Şahin vs Dragunov | 4–0 | 100.00% |
| Mustafa Şahin vs Alisa | 2–1 | 66.67% |
| Mustafa Şahin vs Zafina | 2–1 | 66.67% |
| Mustafa Şahin vs Lidia | 1–2 | 33.33% |
| Mustafa Şahin vs Anna | 3–0 | 100.00% |
| Mustafa Şahin vs Paul | 2–0 | 100.00% |
| Mustafa Şahin vs Xiaoyu | 2–0 | 100.00% |
| Mustafa Şahin vs Feng | 2–0 | 100.00% |
| Mustafa Şahin vs Leo | 0–2 | 0.00% |
| Mustafa Şahin vs Claudio | 2–0 | 100.00% |
| Mustafa Şahin vs Shaheen | 0–2 | 0.00% |
| Mustafa Şahin vs Kuma | 0–2 | 0.00% |
| Mustafa Şahin vs Leroy | 2–0 | 100.00% |
| Mustafa Şahin vs Jun | 0–2 | 0.00% |
| Mustafa Şahin vs Raven | 1–0 | 100.00% |
| Mustafa Şahin vs Eddy | 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.