| Muramasa vs Reina | 13–20 | 39.39% |
| Muramasa vs Jin | 10–17 | 37.04% |
| Muramasa vs King | 6–14 | 30.00% |
| Muramasa vs Steve | 6–11 | 35.29% |
| Muramasa vs Dragunov | 2–14 | 12.50% |
| Muramasa vs Xiaoyu | 1–12 | 7.69% |
| Muramasa vs Lidia | 1–12 | 7.69% |
| Muramasa vs Heihachi | 2–10 | 16.67% |
| Muramasa vs Bryan | 3–8 | 27.27% |
| Muramasa vs Lili | 2–9 | 18.18% |
| Muramasa vs Azucena | 2–8 | 20.00% |
| Muramasa vs Hwoarang | 1–8 | 11.11% |
| Muramasa vs Kazuya | 0–7 | 0.00% |
| Muramasa vs Eddy | 1–6 | 14.29% |
| Muramasa vs Law | 4–2 | 66.67% |
| Muramasa vs Lee | 2–4 | 33.33% |
| Muramasa vs Asuka | 1–4 | 20.00% |
| Muramasa vs Paul | 0–4 | 0.00% |
| Muramasa vs Yoshimitsu | 1–2 | 33.33% |
| Muramasa vs Leo | 0–3 | 0.00% |
| Muramasa vs Shaheen | 1–2 | 33.33% |
| Muramasa vs Victor | 2–1 | 66.67% |
| Muramasa vs Devil Jin | 0–2 | 0.00% |
| Muramasa vs Nina | 0–2 | 0.00% |
| Muramasa vs Leroy | 0–2 | 0.00% |
| Muramasa vs Jun | 0–2 | 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.