| RuthlessMachine vs King | 30–9 | 76.92% |
| RuthlessMachine vs Steve | 24–8 | 75.00% |
| RuthlessMachine vs Hwoarang | 20–11 | 64.52% |
| RuthlessMachine vs Kazuya | 22–3 | 88.00% |
| RuthlessMachine vs Jack-8 | 12–10 | 54.55% |
| RuthlessMachine vs Dragunov | 17–3 | 85.00% |
| RuthlessMachine vs Paul | 18–1 | 94.74% |
| RuthlessMachine vs Nina | 14–2 | 87.50% |
| RuthlessMachine vs Heihachi | 13–3 | 81.25% |
| RuthlessMachine vs Clive | 7–9 | 43.75% |
| RuthlessMachine vs Jin | 15–0 | 100.00% |
| RuthlessMachine vs Leroy | 13–2 | 86.67% |
| RuthlessMachine vs Law | 12–2 | 85.71% |
| RuthlessMachine vs Lars | 11–3 | 78.57% |
| RuthlessMachine vs Lee | 11–3 | 78.57% |
| RuthlessMachine vs Kuma | 5–6 | 45.45% |
| RuthlessMachine vs Raven | 4–7 | 36.36% |
| RuthlessMachine vs Xiaoyu | 6–4 | 60.00% |
| RuthlessMachine vs Alisa | 8–1 | 88.89% |
| RuthlessMachine vs Claudio | 8–1 | 88.89% |
| RuthlessMachine vs Jun | 5–4 | 55.56% |
| RuthlessMachine vs Bryan | 6–2 | 75.00% |
| RuthlessMachine vs Yoshimitsu | 7–0 | 100.00% |
| RuthlessMachine vs Zafina | 5–2 | 71.43% |
| RuthlessMachine vs Reina | 7–0 | 100.00% |
| RuthlessMachine vs Asuka | 6–0 | 100.00% |
| RuthlessMachine vs Devil Jin | 6–0 | 100.00% |
| RuthlessMachine vs Lili | 2–4 | 33.33% |
| RuthlessMachine vs Shaheen | 6–0 | 100.00% |
| RuthlessMachine vs Panda | 3–3 | 50.00% |
| RuthlessMachine vs Eddy | 3–3 | 50.00% |
| RuthlessMachine vs Azucena | 4–1 | 80.00% |
| RuthlessMachine vs Feng | 2–2 | 50.00% |
| RuthlessMachine vs Victor | 2–0 | 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.