| Billy vs Armor King | 59–137 | 30.10% |
| Billy vs Kazuya | 53–103 | 33.97% |
| Billy vs King | 52–79 | 39.69% |
| Billy vs Steve | 44–62 | 41.51% |
| Billy vs Jin | 44–59 | 42.72% |
| Billy vs Bryan | 25–71 | 26.04% |
| Billy vs Hwoarang | 21–51 | 29.17% |
| Billy vs Law | 31–36 | 46.27% |
| Billy vs Miary Zo | 23–33 | 41.07% |
| Billy vs Victor | 10–44 | 18.52% |
| Billy vs Dragunov | 19–32 | 37.25% |
| Billy vs Heihachi | 23–26 | 46.94% |
| Billy vs Fahkumram | 14–34 | 29.17% |
| Billy vs Eddy | 23–20 | 53.49% |
| Billy vs Reina | 13–28 | 31.71% |
| Billy vs Lee | 13–20 | 39.39% |
| Billy vs Yoshimitsu | 16–16 | 50.00% |
| Billy vs Paul | 12–18 | 40.00% |
| Billy vs Azucena | 13–16 | 44.83% |
| Billy vs Lili | 9–17 | 34.62% |
| Billy vs Lars | 11–13 | 45.83% |
| Billy vs Devil Jin | 9–13 | 40.91% |
| Billy vs Feng | 9–13 | 40.91% |
| Billy vs Xiaoyu | 9–11 | 45.00% |
| Billy vs Clive | 6–14 | 30.00% |
| Billy vs Alisa | 8–11 | 42.11% |
| Billy vs Kuma | 7–11 | 38.89% |
| Billy vs Jun | 6–11 | 35.29% |
| Billy vs Zafina | 9–7 | 56.25% |
| Billy vs Jack-8 | 4–11 | 26.67% |
| Billy vs Raven | 3–11 | 21.43% |
| Billy vs Lidia | 3–11 | 21.43% |
| Billy vs Shaheen | 4–8 | 33.33% |
| Billy vs Asuka | 3–8 | 27.27% |
| Billy vs Leroy | 4–7 | 36.36% |
| Billy vs Claudio | 1–8 | 11.11% |
| Billy vs Nina | 3–6 | 33.33% |
| Billy vs Anna | 4–5 | 44.44% |
| Billy vs Leo | 3–4 | 42.86% |
| Billy vs Panda | 0–4 | 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.