| Kazino Mashima vs King | 41–48 | 46.07% |
| Kazino Mashima vs Reina | 43–46 | 48.31% |
| Kazino Mashima vs Bryan | 54–27 | 66.67% |
| Kazino Mashima vs Kazuya | 49–31 | 61.25% |
| Kazino Mashima vs Steve | 31–22 | 58.49% |
| Kazino Mashima vs Heihachi | 34–13 | 72.34% |
| Kazino Mashima vs Lili | 17–28 | 37.78% |
| Kazino Mashima vs Jin | 27–16 | 62.79% |
| Kazino Mashima vs Yoshimitsu | 22–19 | 53.66% |
| Kazino Mashima vs Asuka | 21–20 | 51.22% |
| Kazino Mashima vs Dragunov | 22–19 | 53.66% |
| Kazino Mashima vs Devil Jin | 24–16 | 60.00% |
| Kazino Mashima vs Paul | 19–19 | 50.00% |
| Kazino Mashima vs Hwoarang | 23–15 | 60.53% |
| Kazino Mashima vs Azucena | 17–19 | 47.22% |
| Kazino Mashima vs Jun | 16–16 | 50.00% |
| Kazino Mashima vs Law | 15–16 | 48.39% |
| Kazino Mashima vs Nina | 18–11 | 62.07% |
| Kazino Mashima vs Fahkumram | 10–18 | 35.71% |
| Kazino Mashima vs Lee | 14–13 | 51.85% |
| Kazino Mashima vs Raven | 13–13 | 50.00% |
| Kazino Mashima vs Xiaoyu | 17–7 | 70.83% |
| Kazino Mashima vs Victor | 15–9 | 62.50% |
| Kazino Mashima vs Lars | 17–6 | 73.91% |
| Kazino Mashima vs Claudio | 12–11 | 52.17% |
| Kazino Mashima vs Jack-8 | 12–10 | 54.55% |
| Kazino Mashima vs Lidia | 16–5 | 76.19% |
| Kazino Mashima vs Eddy | 10–9 | 52.63% |
| Kazino Mashima vs Leo | 12–6 | 66.67% |
| Kazino Mashima vs Feng | 8–8 | 50.00% |
| Kazino Mashima vs Leroy | 6–9 | 40.00% |
| Kazino Mashima vs Anna | 7–8 | 46.67% |
| Kazino Mashima vs Zafina | 8–6 | 57.14% |
| Kazino Mashima vs Alisa | 2–11 | 15.38% |
| Kazino Mashima vs Kuma | 5–7 | 41.67% |
| Kazino Mashima vs Clive | 6–6 | 50.00% |
| Kazino Mashima vs Shaheen | 6–0 | 100.00% |
| Kazino Mashima vs Panda | 2–2 | 50.00% |
| Kazino Mashima vs Armor King | 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.