| ReallyReallyBad vs King | 18–14 | 56.25% |
| ReallyReallyBad vs Kazuya | 20–12 | 62.50% |
| ReallyReallyBad vs Lili | 11–10 | 52.38% |
| ReallyReallyBad vs Hwoarang | 10–9 | 52.63% |
| ReallyReallyBad vs Law | 12–6 | 66.67% |
| ReallyReallyBad vs Jin | 11–7 | 61.11% |
| ReallyReallyBad vs Steve | 15–2 | 88.24% |
| ReallyReallyBad vs Bryan | 7–9 | 43.75% |
| ReallyReallyBad vs Paul | 8–7 | 53.33% |
| ReallyReallyBad vs Yoshimitsu | 8–6 | 57.14% |
| ReallyReallyBad vs Asuka | 10–3 | 76.92% |
| ReallyReallyBad vs Reina | 9–3 | 75.00% |
| ReallyReallyBad vs Dragunov | 5–4 | 55.56% |
| ReallyReallyBad vs Kuma | 3–6 | 33.33% |
| ReallyReallyBad vs Heihachi | 5–3 | 62.50% |
| ReallyReallyBad vs Xiaoyu | 5–2 | 71.43% |
| ReallyReallyBad vs Zafina | 4–3 | 57.14% |
| ReallyReallyBad vs Jun | 3–4 | 42.86% |
| ReallyReallyBad vs Devil Jin | 4–2 | 66.67% |
| ReallyReallyBad vs Shaheen | 2–4 | 33.33% |
| ReallyReallyBad vs Leroy | 5–1 | 83.33% |
| ReallyReallyBad vs Raven | 4–2 | 66.67% |
| ReallyReallyBad vs Feng | 4–1 | 80.00% |
| ReallyReallyBad vs Alisa | 4–1 | 80.00% |
| ReallyReallyBad vs Claudio | 1–4 | 20.00% |
| ReallyReallyBad vs Victor | 4–1 | 80.00% |
| ReallyReallyBad vs Lars | 0–3 | 0.00% |
| ReallyReallyBad vs Lee | 0–3 | 0.00% |
| ReallyReallyBad vs Azucena | 3–0 | 100.00% |
| ReallyReallyBad vs Eddy | 3–0 | 100.00% |
| ReallyReallyBad vs Jack-8 | 2–0 | 100.00% |
| ReallyReallyBad vs Lidia | 2–0 | 100.00% |
| ReallyReallyBad vs Clive | 2–0 | 100.00% |
| ReallyReallyBad vs Nina | 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.