| Mashiii vs King | 26–40 | 39.39% |
| Mashiii vs Reina | 40–26 | 60.61% |
| Mashiii vs Jin | 27–25 | 51.92% |
| Mashiii vs Steve | 28–23 | 54.90% |
| Mashiii vs Lili | 16–27 | 37.21% |
| Mashiii vs Hwoarang | 17–20 | 45.95% |
| Mashiii vs Bryan | 16–18 | 47.06% |
| Mashiii vs Eddy | 17–17 | 50.00% |
| Mashiii vs Azucena | 14–17 | 45.16% |
| Mashiii vs Jun | 14–16 | 46.67% |
| Mashiii vs Dragunov | 13–16 | 44.83% |
| Mashiii vs Law | 17–10 | 62.96% |
| Mashiii vs Raven | 17–10 | 62.96% |
| Mashiii vs Asuka | 7–15 | 31.82% |
| Mashiii vs Nina | 14–8 | 63.64% |
| Mashiii vs Kazuya | 13–8 | 61.90% |
| Mashiii vs Shaheen | 11–9 | 55.00% |
| Mashiii vs Leo | 13–5 | 72.22% |
| Mashiii vs Alisa | 12–6 | 66.67% |
| Mashiii vs Lee | 6–12 | 33.33% |
| Mashiii vs Devil Jin | 6–11 | 35.29% |
| Mashiii vs Victor | 12–4 | 75.00% |
| Mashiii vs Paul | 7–7–1 | 50.00% |
| Mashiii vs Xiaoyu | 9–6 | 60.00% |
| Mashiii vs Zafina | 4–10 | 28.57% |
| Mashiii vs Yoshimitsu | 9–4 | 69.23% |
| Mashiii vs Lars | 6–7 | 46.15% |
| Mashiii vs Jack-8 | 5–7 | 41.67% |
| Mashiii vs Feng | 6–6 | 50.00% |
| Mashiii vs Kuma | 8–4 | 66.67% |
| Mashiii vs Claudio | 3–4 | 42.86% |
| Mashiii vs Leroy | 4–3 | 57.14% |
| Mashiii vs Heihachi | 2–3 | 40.00% |
| Mashiii vs Lidia | 0–3 | 0.00% |
| Mashiii vs Clive | 0–2 | 0.00% |
| Mashiii vs Fahkumram | 2–0 | 100.00% |
| Mashiii vs Anna | 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.