| Mendokusai vs Reina | 29–22 | 56.86% |
| Mendokusai vs Jin | 26–13 | 66.67% |
| Mendokusai vs King | 19–13 | 59.38% |
| Mendokusai vs Eddy | 13–15 | 46.43% |
| Mendokusai vs Kazuya | 11–13 | 45.83% |
| Mendokusai vs Hwoarang | 11–10 | 52.38% |
| Mendokusai vs Lili | 9–9 | 50.00% |
| Mendokusai vs Steve | 12–5 | 70.59% |
| Mendokusai vs Paul | 9–7 | 56.25% |
| Mendokusai vs Bryan | 10–6 | 62.50% |
| Mendokusai vs Asuka | 7–7 | 50.00% |
| Mendokusai vs Law | 8–5 | 61.54% |
| Mendokusai vs Nina | 6–7 | 46.15% |
| Mendokusai vs Jun | 7–5 | 58.33% |
| Mendokusai vs Leroy | 8–3 | 72.73% |
| Mendokusai vs Alisa | 9–1 | 90.00% |
| Mendokusai vs Lee | 3–7 | 30.00% |
| Mendokusai vs Yoshimitsu | 6–3 | 66.67% |
| Mendokusai vs Dragunov | 8–1 | 88.89% |
| Mendokusai vs Lars | 2–7 | 22.22% |
| Mendokusai vs Leo | 3–5 | 37.50% |
| Mendokusai vs Victor | 6–2 | 75.00% |
| Mendokusai vs Heihachi | 6–2 | 75.00% |
| Mendokusai vs Xiaoyu | 4–2 | 66.67% |
| Mendokusai vs Anna | 2–4 | 33.33% |
| Mendokusai vs Clive | 2–3 | 40.00% |
| Mendokusai vs Jack-8 | 0–3 | 0.00% |
| Mendokusai vs Devil Jin | 1–2 | 33.33% |
| Mendokusai vs Kuma | 3–0 | 100.00% |
| Mendokusai vs Azucena | 3–0 | 100.00% |
| Mendokusai vs Raven | 3–0 | 100.00% |
| Mendokusai vs Lidia | 1–2 | 33.33% |
| Mendokusai vs Feng | 1–1 | 50.00% |
| Mendokusai vs Claudio | 0–2 | 0.00% |
| Mendokusai vs Zafina | 0–2 | 0.00% |
| Mendokusai vs Miary Zo | 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.