| William Munny vs Kazuya | 116–88 | 56.86% |
| William Munny vs Heihachi | 110–60 | 64.71% |
| William Munny vs Jin | 97–55 | 63.82% |
| William Munny vs Dragunov | 80–47 | 62.99% |
| William Munny vs King | 85–39 | 68.55% |
| William Munny vs Reina | 79–21 | 79.00% |
| William Munny vs Paul | 55–39 | 58.51% |
| William Munny vs Steve | 62–31 | 66.67% |
| William Munny vs Hwoarang | 53–33 | 61.63% |
| William Munny vs Azucena | 46–27 | 63.01% |
| William Munny vs Bryan | 38–28 | 57.58% |
| William Munny vs Clive | 43–23 | 65.15% |
| William Munny vs Jun | 28–30 | 48.28% |
| William Munny vs Devil Jin | 30–25 | 54.55% |
| William Munny vs Lili | 32–23 | 58.18% |
| William Munny vs Yoshimitsu | 32–20 | 61.54% |
| William Munny vs Law | 33–18 | 64.71% |
| William Munny vs Nina | 33–13 | 71.74% |
| William Munny vs Asuka | 32–13 | 71.11% |
| William Munny vs Lee | 27–17 | 61.36% |
| William Munny vs Armor King | 33–11 | 75.00% |
| William Munny vs Lidia | 18–24 | 42.86% |
| William Munny vs Victor | 20–18 | 52.63% |
| William Munny vs Fahkumram | 18–19 | 48.65% |
| William Munny vs Xiaoyu | 21–13 | 61.76% |
| William Munny vs Claudio | 21–13 | 61.76% |
| William Munny vs Jack-8 | 17–16 | 51.52% |
| William Munny vs Feng | 20–10 | 66.67% |
| William Munny vs Leo | 13–15 | 46.43% |
| William Munny vs Lars | 20–8 | 71.43% |
| William Munny vs Eddy | 13–7 | 65.00% |
| William Munny vs Alisa | 8–11 | 42.11% |
| William Munny vs Anna | 8–11 | 42.11% |
| William Munny vs Kuma | 8–9 | 47.06% |
| William Munny vs Leroy | 14–2 | 87.50% |
| William Munny vs Zafina | 6–9 | 40.00% |
| William Munny vs Shaheen | 7–6 | 53.85% |
| William Munny vs Raven | 5–7 | 41.67% |
| William Munny vs Miary Zo | 8–3 | 72.73% |
| William Munny vs Panda | 4–5 | 44.44% |
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.