| Mahan vs Jin | 70–61 | 53.44% |
| Mahan vs Kazuya | 65–50–1 | 56.52% |
| Mahan vs King | 70–45 | 60.87% |
| Mahan vs Hwoarang | 60–37 | 61.86% |
| Mahan vs Dragunov | 40–49 | 44.94% |
| Mahan vs Steve | 46–35 | 56.79% |
| Mahan vs Bryan | 33–42 | 44.00% |
| Mahan vs Yoshimitsu | 37–32 | 53.62% |
| Mahan vs Heihachi | 34–34 | 50.00% |
| Mahan vs Paul | 34–33 | 50.75% |
| Mahan vs Law | 39–24 | 61.90% |
| Mahan vs Jun | 22–34 | 39.29% |
| Mahan vs Feng | 32–20 | 61.54% |
| Mahan vs Nina | 29–21 | 58.00% |
| Mahan vs Lee | 23–27 | 46.00% |
| Mahan vs Lili | 23–24 | 48.94% |
| Mahan vs Asuka | 20–23 | 46.51% |
| Mahan vs Devil Jin | 14–26 | 35.00% |
| Mahan vs Alisa | 14–19 | 42.42% |
| Mahan vs Eddy | 22–10 | 68.75% |
| Mahan vs Reina | 18–9 | 66.67% |
| Mahan vs Azucena | 13–11 | 54.17% |
| Mahan vs Xiaoyu | 10–12 | 45.45% |
| Mahan vs Lars | 10–10 | 50.00% |
| Mahan vs Clive | 8–12 | 40.00% |
| Mahan vs Victor | 9–9 | 50.00% |
| Mahan vs Lidia | 12–5 | 70.59% |
| Mahan vs Jack-8 | 5–10 | 33.33% |
| Mahan vs Leroy | 6–9 | 40.00% |
| Mahan vs Claudio | 4–10 | 28.57% |
| Mahan vs Leo | 5–4 | 55.56% |
| Mahan vs Kuma | 3–6 | 33.33% |
| Mahan vs Raven | 1–4 | 20.00% |
| Mahan vs Shaheen | 0–2 | 0.00% |
| Mahan vs Zafina | 1–1 | 50.00% |
| Mahan vs Panda | 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.