| Mehdi vs Jin | 30–0 | 100.00% |
| Mehdi vs Heihachi | 18–3 | 85.71% |
| Mehdi vs Lars | 18–2 | 90.00% |
| Mehdi vs King | 17–2 | 89.47% |
| Mehdi vs Dragunov | 15–2 | 88.24% |
| Mehdi vs Steve | 14–2 | 87.50% |
| Mehdi vs Yoshimitsu | 14–1 | 93.33% |
| Mehdi vs Asuka | 12–3 | 80.00% |
| Mehdi vs Hwoarang | 14–0 | 100.00% |
| Mehdi vs Bryan | 13–1 | 92.86% |
| Mehdi vs Kazuya | 14–0 | 100.00% |
| Mehdi vs Nina | 12–2 | 85.71% |
| Mehdi vs Paul | 9–3 | 75.00% |
| Mehdi vs Devil Jin | 12–0 | 100.00% |
| Mehdi vs Leo | 9–2 | 81.82% |
| Mehdi vs Lee | 7–4 | 63.64% |
| Mehdi vs Jun | 10–0 | 100.00% |
| Mehdi vs Azucena | 7–3 | 70.00% |
| Mehdi vs Feng | 5–4 | 55.56% |
| Mehdi vs Zafina | 8–1 | 88.89% |
| Mehdi vs Reina | 9–0 | 100.00% |
| Mehdi vs Lidia | 8–1 | 88.89% |
| Mehdi vs Claudio | 5–2 | 71.43% |
| Mehdi vs Shaheen | 6–1 | 85.71% |
| Mehdi vs Eddy | 6–1 | 85.71% |
| Mehdi vs Xiaoyu | 6–0 | 100.00% |
| Mehdi vs Lili | 6–0 | 100.00% |
| Mehdi vs Kuma | 4–2 | 66.67% |
| Mehdi vs Law | 5–0 | 100.00% |
| Mehdi vs Leroy | 4–0 | 100.00% |
| Mehdi vs Raven | 3–1 | 75.00% |
| Mehdi vs Alisa | 3–0 | 100.00% |
| Mehdi vs Panda | 2–1 | 66.67% |
| Mehdi vs Victor | 2–0 | 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.