| Mehdi Joestar vs Kazuya | 18–14 | 56.25% |
| Mehdi Joestar vs King | 18–7 | 72.00% |
| Mehdi Joestar vs Jin | 13–10 | 56.52% |
| Mehdi Joestar vs Reina | 12–8 | 60.00% |
| Mehdi Joestar vs Dragunov | 12–6 | 66.67% |
| Mehdi Joestar vs Nina | 9–7 | 56.25% |
| Mehdi Joestar vs Jun | 8–7 | 53.33% |
| Mehdi Joestar vs Steve | 7–6 | 53.85% |
| Mehdi Joestar vs Bryan | 6–6 | 50.00% |
| Mehdi Joestar vs Yoshimitsu | 6–5 | 54.55% |
| Mehdi Joestar vs Devil Jin | 3–7 | 30.00% |
| Mehdi Joestar vs Victor | 3–7 | 30.00% |
| Mehdi Joestar vs Paul | 6–3 | 66.67% |
| Mehdi Joestar vs Eddy | 7–1 | 87.50% |
| Mehdi Joestar vs Hwoarang | 5–2 | 71.43% |
| Mehdi Joestar vs Lili | 3–4 | 42.86% |
| Mehdi Joestar vs Xiaoyu | 2–4 | 33.33% |
| Mehdi Joestar vs Asuka | 4–2 | 66.67% |
| Mehdi Joestar vs Leroy | 4–2 | 66.67% |
| Mehdi Joestar vs Azucena | 3–3 | 50.00% |
| Mehdi Joestar vs Raven | 2–3 | 40.00% |
| Mehdi Joestar vs Lee | 1–3 | 25.00% |
| Mehdi Joestar vs Law | 1–2 | 33.33% |
| Mehdi Joestar vs Feng | 1–2 | 33.33% |
| Mehdi Joestar vs Leo | 0–3 | 0.00% |
| Mehdi Joestar vs Alisa | 2–1 | 66.67% |
| Mehdi Joestar vs Claudio | 1–2 | 33.33% |
| Mehdi Joestar vs Shaheen | 2–1 | 66.67% |
| Mehdi Joestar vs Kuma | 1–2 | 33.33% |
| Mehdi Joestar vs Lars | 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.