| Billwell vs Jin | 7–3 | 70.00% |
| Billwell vs Law | 5–3 | 62.50% |
| Billwell vs Hwoarang | 3–3 | 50.00% |
| Billwell vs Kazuya | 2–3 | 40.00% |
| Billwell vs Reina | 2–3 | 40.00% |
| Billwell vs Clive | 2–3 | 40.00% |
| Billwell vs Steve | 3–1 | 75.00% |
| Billwell vs Eddy | 2–2 | 50.00% |
| Billwell vs Yoshimitsu | 1–2 | 33.33% |
| Billwell vs Claudio | 2–1 | 66.67% |
| Billwell vs Heihachi | 2–1 | 66.67% |
| Billwell vs Lili | 2–0 | 100.00% |
| Billwell vs Lars | 0–2 | 0.00% |
| Billwell vs Panda | 0–2 | 0.00% |
| Billwell vs Jun | 2–0 | 100.00% |
| Billwell vs King | 0–1 | 0.00% |
| Billwell vs Dragunov | 0–1 | 0.00% |
| Billwell vs Lee | 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.