| Mwumby vs Kazuya | 80–98 | 44.94% |
| Mwumby vs Hwoarang | 73–52 | 58.40% |
| Mwumby vs Jin | 52–64 | 44.83% |
| Mwumby vs Reina | 53–60 | 46.90% |
| Mwumby vs Paul | 60–45 | 57.14% |
| Mwumby vs Bryan | 51–50 | 50.50% |
| Mwumby vs King | 52–48 | 52.00% |
| Mwumby vs Law | 55–43 | 56.12% |
| Mwumby vs Dragunov | 38–37 | 50.67% |
| Mwumby vs Yoshimitsu | 32–40 | 44.44% |
| Mwumby vs Steve | 43–29 | 59.72% |
| Mwumby vs Asuka | 33–20 | 62.26% |
| Mwumby vs Lili | 20–33 | 37.74% |
| Mwumby vs Alisa | 17–35 | 32.69% |
| Mwumby vs Azucena | 23–24 | 48.94% |
| Mwumby vs Nina | 25–19 | 56.82% |
| Mwumby vs Lee | 20–23 | 46.51% |
| Mwumby vs Devil Jin | 17–23 | 42.50% |
| Mwumby vs Xiaoyu | 29–9 | 76.32% |
| Mwumby vs Eddy | 18–19 | 48.65% |
| Mwumby vs Kuma | 15–20 | 42.86% |
| Mwumby vs Feng | 14–18 | 43.75% |
| Mwumby vs Jun | 18–13 | 58.06% |
| Mwumby vs Raven | 16–15 | 51.61% |
| Mwumby vs Victor | 12–17 | 41.38% |
| Mwumby vs Lars | 11–17 | 39.29% |
| Mwumby vs Claudio | 14–13 | 51.85% |
| Mwumby vs Leo | 11–14 | 44.00% |
| Mwumby vs Leroy | 10–8 | 55.56% |
| Mwumby vs Zafina | 4–13 | 23.53% |
| Mwumby vs Jack-8 | 4–12 | 25.00% |
| Mwumby vs Panda | 7–8 | 46.67% |
| Mwumby vs Shaheen | 2–7 | 22.22% |
| Mwumby vs Lidia | 2–1 | 66.67% |
| Mwumby vs Heihachi | 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.