| BillyBoy vs Reina | 11–4 | 73.33% |
| BillyBoy vs Law | 5–8 | 38.46% |
| BillyBoy vs Lili | 6–7 | 46.15% |
| BillyBoy vs Jin | 5–7 | 41.67% |
| BillyBoy vs Hwoarang | 3–8 | 27.27% |
| BillyBoy vs Eddy | 1–10 | 9.09% |
| BillyBoy vs King | 4–6 | 40.00% |
| BillyBoy vs Dragunov | 1–7 | 12.50% |
| BillyBoy vs Alisa | 2–6 | 25.00% |
| BillyBoy vs Azucena | 3–5 | 37.50% |
| BillyBoy vs Xiaoyu | 4–3 | 57.14% |
| BillyBoy vs Kazuya | 3–4 | 42.86% |
| BillyBoy vs Kuma | 1–6 | 14.29% |
| BillyBoy vs Jun | 4–3 | 57.14% |
| BillyBoy vs Paul | 2–3 | 40.00% |
| BillyBoy vs Yoshimitsu | 3–2 | 60.00% |
| BillyBoy vs Jack-8 | 2–3 | 40.00% |
| BillyBoy vs Devil Jin | 2–3 | 40.00% |
| BillyBoy vs Steve | 1–3 | 25.00% |
| BillyBoy vs Claudio | 1–3 | 25.00% |
| BillyBoy vs Nina | 1–3 | 25.00% |
| BillyBoy vs Victor | 2–2 | 50.00% |
| BillyBoy vs Bryan | 2–1 | 66.67% |
| BillyBoy vs Asuka | 2–1 | 66.67% |
| BillyBoy vs Feng | 1–2 | 33.33% |
| BillyBoy vs Lars | 0–3 | 0.00% |
| BillyBoy vs Lee | 1–2 | 33.33% |
| BillyBoy vs Zafina | 1–2 | 33.33% |
| BillyBoy vs Clive | 1–2 | 33.33% |
| BillyBoy vs Leroy | 1–1 | 50.00% |
| BillyBoy vs Lidia | 0–2 | 0.00% |
| BillyBoy vs Leo | 0–1 | 0.00% |
| BillyBoy vs Raven | 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.