| Ruthless vs King | 9–1 | 90.00% |
| Ruthless vs Asuka | 3–4 | 42.86% |
| Ruthless vs Reina | 7–0 | 100.00% |
| Ruthless vs Kazuya | 5–1 | 83.33% |
| Ruthless vs Jin | 6–0 | 100.00% |
| Ruthless vs Bryan | 5–0 | 100.00% |
| Ruthless vs Steve | 2–2 | 50.00% |
| Ruthless vs Lili | 4–0 | 100.00% |
| Ruthless vs Law | 4–0 | 100.00% |
| Ruthless vs Leroy | 4–0 | 100.00% |
| Ruthless vs Azucena | 3–1 | 75.00% |
| Ruthless vs Lidia | 2–1 | 66.67% |
| Ruthless vs Paul | 2–0 | 100.00% |
| Ruthless vs Hwoarang | 2–0 | 100.00% |
| Ruthless vs Feng | 1–1 | 50.00% |
| Ruthless vs Lars | 2–0 | 100.00% |
| Ruthless vs Nina | 2–0 | 100.00% |
| Ruthless vs Lee | 2–0 | 100.00% |
| Ruthless vs Dragunov | 1–0 | 100.00% |
| Ruthless vs Claudio | 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.