| Mendes vs Reina | 9–4 | 69.23% |
| Mendes vs Steve | 6–5 | 54.55% |
| Mendes vs Yoshimitsu | 5–1 | 83.33% |
| Mendes vs Heihachi | 4–2 | 66.67% |
| Mendes vs Fahkumram | 5–1 | 83.33% |
| Mendes vs Law | 2–3 | 40.00% |
| Mendes vs Lars | 4–1 | 80.00% |
| Mendes vs Alisa | 2–3 | 40.00% |
| Mendes vs Armor King | 4–1 | 80.00% |
| Mendes vs Jin | 0–4 | 0.00% |
| Mendes vs Dragunov | 2–2 | 50.00% |
| Mendes vs Nina | 4–0 | 100.00% |
| Mendes vs Xiaoyu | 1–2 | 33.33% |
| Mendes vs Lili | 2–1 | 66.67% |
| Mendes vs Claudio | 1–2 | 33.33% |
| Mendes vs Paul | 2–0 | 100.00% |
| Mendes vs Kazuya | 2–0 | 100.00% |
| Mendes vs Asuka | 0–2 | 0.00% |
| Mendes vs Devil Jin | 0–2 | 0.00% |
| Mendes vs Leo | 2–0 | 100.00% |
| Mendes vs Leroy | 2–0 | 100.00% |
| Mendes vs Azucena | 0–2 | 0.00% |
| Mendes vs Victor | 2–0 | 100.00% |
| Mendes vs Eddy | 1–1 | 50.00% |
| Mendes vs Clive | 0–2 | 0.00% |
| Mendes vs King | 0–1 | 0.00% |
| Mendes vs Hwoarang | 0–1 | 0.00% |
| Mendes vs Bryan | 0–1 | 0.00% |
| Mendes vs Jack-8 | 1–0 | 100.00% |
| Mendes vs Feng | 1–0 | 100.00% |
| Mendes 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.