| Masa vs Heihachi | 50–50 | 50.00% |
| Masa vs Kazuya | 65–27 | 70.65% |
| Masa vs Bryan | 42–34 | 55.26% |
| Masa vs Jin | 56–18 | 75.68% |
| Masa vs King | 42–24 | 63.64% |
| Masa vs Reina | 39–23 | 62.90% |
| Masa vs Steve | 35–21 | 62.50% |
| Masa vs Lili | 27–28 | 49.09% |
| Masa vs Law | 30–19 | 61.22% |
| Masa vs Asuka | 29–19 | 60.42% |
| Masa vs Hwoarang | 32–13 | 71.11% |
| Masa vs Devil Jin | 26–13 | 66.67% |
| Masa vs Paul | 22–16 | 57.89% |
| Masa vs Dragunov | 22–16 | 57.89% |
| Masa vs Yoshimitsu | 19–16 | 54.29% |
| Masa vs Xiaoyu | 23–11 | 67.65% |
| Masa vs Jun | 13–20 | 39.39% |
| Masa vs Lee | 19–13 | 59.38% |
| Masa vs Alisa | 16–10 | 61.54% |
| Masa vs Eddy | 12–12 | 50.00% |
| Masa vs Claudio | 9–13 | 40.91% |
| Masa vs Nina | 15–6 | 71.43% |
| Masa vs Clive | 8–12 | 40.00% |
| Masa vs Azucena | 9–10 | 47.37% |
| Masa vs Lidia | 11–8 | 57.89% |
| Masa vs Feng | 9–9 | 50.00% |
| Masa vs Leroy | 8–8 | 50.00% |
| Masa vs Lars | 9–5–1 | 64.29% |
| Masa vs Zafina | 6–9 | 40.00% |
| Masa vs Victor | 6–9 | 40.00% |
| Masa vs Kuma | 6–8 | 42.86% |
| Masa vs Leo | 6–5 | 54.55% |
| Masa vs Raven | 4–6 | 40.00% |
| Masa vs Jack-8 | 5–4 | 55.56% |
| Masa vs Anna | 3–3 | 50.00% |
| Masa vs Shaheen | 4–0 | 100.00% |
| Masa vs Fahkumram | 0–4 | 0.00% |
| Masa vs Panda | 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.