| Muramasa vs Reina | 23–25 | 47.92% |
| Muramasa vs Steve | 23–18 | 56.10% |
| Muramasa vs Hwoarang | 17–22 | 43.59% |
| Muramasa vs Jin | 15–24 | 38.46% |
| Muramasa vs Armor King | 14–25 | 35.90% |
| Muramasa vs Law | 23–14 | 62.16% |
| Muramasa vs King | 24–13 | 64.86% |
| Muramasa vs Dragunov | 16–20 | 44.44% |
| Muramasa vs Eddy | 14–15 | 48.28% |
| Muramasa vs Lili | 8–20 | 28.57% |
| Muramasa vs Lidia | 15–12 | 55.56% |
| Muramasa vs Azucena | 10–14 | 41.67% |
| Muramasa vs Nina | 9–14 | 39.13% |
| Muramasa vs Yoshimitsu | 7–14 | 33.33% |
| Muramasa vs Kazuya | 10–11 | 47.62% |
| Muramasa vs Victor | 7–13 | 35.00% |
| Muramasa vs Heihachi | 7–10 | 41.18% |
| Muramasa vs Lars | 7–9 | 43.75% |
| Muramasa vs Leroy | 5–11 | 31.25% |
| Muramasa vs Jun | 5–11 | 31.25% |
| Muramasa vs Alisa | 8–7 | 53.33% |
| Muramasa vs Bryan | 6–8 | 42.86% |
| Muramasa vs Paul | 7–6 | 53.85% |
| Muramasa vs Clive | 8–5 | 61.54% |
| Muramasa vs Devil Jin | 4–8 | 33.33% |
| Muramasa vs Xiaoyu | 7–3 | 70.00% |
| Muramasa vs Kuma | 3–7 | 30.00% |
| Muramasa vs Fahkumram | 7–3 | 70.00% |
| Muramasa vs Leo | 6–3 | 66.67% |
| Muramasa vs Raven | 5–3 | 62.50% |
| Muramasa vs Jack-8 | 1–6 | 14.29% |
| Muramasa vs Asuka | 1–6 | 14.29% |
| Muramasa vs Lee | 3–4 | 42.86% |
| Muramasa vs Feng | 2–3 | 40.00% |
| Muramasa vs Claudio | 0–3 | 0.00% |
| Muramasa vs Anna | 2–1 | 66.67% |
| Muramasa vs Miary Zo | 2–1 | 66.67% |
| Muramasa vs Panda | 1–1 | 50.00% |
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.