| Billystaf vs Clive | 14–3 | 82.35% |
| Billystaf vs Reina | 9–6 | 60.00% |
| Billystaf vs Steve | 13–1 | 92.86% |
| Billystaf vs King | 11–1 | 91.67% |
| Billystaf vs Hwoarang | 7–4 | 63.64% |
| Billystaf vs Kazuya | 8–1 | 88.89% |
| Billystaf vs Eddy | 8–1 | 88.89% |
| Billystaf vs Law | 4–4 | 50.00% |
| Billystaf vs Nina | 6–2 | 75.00% |
| Billystaf vs Jin | 7–0 | 100.00% |
| Billystaf vs Jun | 5–2 | 71.43% |
| Billystaf vs Lili | 6–0 | 100.00% |
| Billystaf vs Victor | 6–0 | 100.00% |
| Billystaf vs Paul | 5–0 | 100.00% |
| Billystaf vs Leo | 4–1 | 80.00% |
| Billystaf vs Jack-8 | 3–0 | 100.00% |
| Billystaf vs Bryan | 2–0 | 100.00% |
| Billystaf vs Asuka | 2–0 | 100.00% |
| Billystaf vs Feng | 0–2 | 0.00% |
| Billystaf vs Dragunov | 0–2 | 0.00% |
| Billystaf vs Azucena | 2–0 | 100.00% |
| Billystaf vs Lidia | 2–0 | 100.00% |
| Billystaf vs Lee | 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.