| BillyBill vs Bryan | 24–29 | 45.28% |
| BillyBill vs Jin | 10–21 | 32.26% |
| BillyBill vs Lee | 11–15 | 42.31% |
| BillyBill vs Kazuya | 10–14 | 41.67% |
| BillyBill vs King | 11–12 | 47.83% |
| BillyBill vs Jack-8 | 12–10 | 54.55% |
| BillyBill vs Azucena | 7–14 | 33.33% |
| BillyBill vs Yoshimitsu | 12–7 | 63.16% |
| BillyBill vs Steve | 11–8 | 57.89% |
| BillyBill vs Law | 11–7 | 61.11% |
| BillyBill vs Devil Jin | 8–10 | 44.44% |
| BillyBill vs Lars | 12–6 | 66.67% |
| BillyBill vs Reina | 10–8 | 55.56% |
| BillyBill vs Asuka | 9–7 | 56.25% |
| BillyBill vs Hwoarang | 9–6 | 60.00% |
| BillyBill vs Lili | 11–4 | 73.33% |
| BillyBill vs Jun | 8–7 | 53.33% |
| BillyBill vs Xiaoyu | 5–8 | 38.46% |
| BillyBill vs Paul | 7–4 | 63.64% |
| BillyBill vs Victor | 5–6 | 45.45% |
| BillyBill vs Heihachi | 4–6 | 40.00% |
| BillyBill vs Dragunov | 7–2 | 77.78% |
| BillyBill vs Feng | 3–5 | 37.50% |
| BillyBill vs Raven | 5–3 | 62.50% |
| BillyBill vs Eddy | 5–3 | 62.50% |
| BillyBill vs Clive | 6–1 | 85.71% |
| BillyBill vs Anna | 2–4 | 33.33% |
| BillyBill vs Leo | 4–1 | 80.00% |
| BillyBill vs Alisa | 3–1 | 75.00% |
| BillyBill vs Leroy | 2–2 | 50.00% |
| BillyBill vs Claudio | 1–2 | 33.33% |
| BillyBill vs Nina | 0–2 | 0.00% |
| BillyBill vs Zafina | 0–2 | 0.00% |
| BillyBill vs Lidia | 2–0 | 100.00% |
| BillyBill vs Kuma | 1–0 | 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.