| Ratboy vs Law | 8–13 | 38.10% |
| Ratboy vs Reina | 10–9 | 52.63% |
| Ratboy vs Victor | 10–8 | 55.56% |
| Ratboy vs Kazuya | 6–11 | 35.29% |
| Ratboy vs Lidia | 7–10 | 41.18% |
| Ratboy vs Jin | 7–9 | 43.75% |
| Ratboy vs Steve | 9–4 | 69.23% |
| Ratboy vs Lili | 3–9 | 25.00% |
| Ratboy vs Bryan | 1–10 | 9.09% |
| Ratboy vs Clive | 4–5 | 44.44% |
| Ratboy vs Dragunov | 4–4 | 50.00% |
| Ratboy vs Lars | 2–5 | 28.57% |
| Ratboy vs Lee | 5–2 | 71.43% |
| Ratboy vs Yoshimitsu | 2–4 | 33.33% |
| Ratboy vs Alisa | 2–4 | 33.33% |
| Ratboy vs Eddy | 2–4 | 33.33% |
| Ratboy vs Feng | 0–5 | 0.00% |
| Ratboy vs Shaheen | 4–1 | 80.00% |
| Ratboy vs Nina | 3–1 | 75.00% |
| Ratboy vs Paul | 1–2 | 33.33% |
| Ratboy vs Asuka | 2–1 | 66.67% |
| Ratboy vs Devil Jin | 2–1 | 66.67% |
| Ratboy vs Leo | 3–0 | 100.00% |
| Ratboy vs Zafina | 2–1 | 66.67% |
| Ratboy vs Raven | 3–0 | 100.00% |
| Ratboy vs Hwoarang | 0–2 | 0.00% |
| Ratboy vs Azucena | 2–0 | 100.00% |
| Ratboy vs Heihachi | 2–0 | 100.00% |
| Ratboy vs Leroy | 1–0 | 100.00% |
| Ratboy vs Jun | 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.