| JustReallyBad vs Kazuya | 6–9 | 40.00% |
| JustReallyBad vs Jin | 2–6 | 25.00% |
| JustReallyBad vs King | 3–4 | 42.86% |
| JustReallyBad vs Law | 4–1 | 80.00% |
| JustReallyBad vs Lili | 3–2 | 60.00% |
| JustReallyBad vs Yoshimitsu | 1–3 | 25.00% |
| JustReallyBad vs Jun | 1–3 | 25.00% |
| JustReallyBad vs Paul | 2–1 | 66.67% |
| JustReallyBad vs Dragunov | 2–1 | 66.67% |
| JustReallyBad vs Nina | 3–0 | 100.00% |
| JustReallyBad vs Anna | 1–2 | 33.33% |
| JustReallyBad vs Claudio | 2–0 | 100.00% |
| JustReallyBad vs Reina | 2–0 | 100.00% |
| JustReallyBad vs Azucena | 2–0 | 100.00% |
| JustReallyBad vs Victor | 2–0 | 100.00% |
| JustReallyBad vs Clive | 2–0 | 100.00% |
| JustReallyBad vs Hwoarang | 1–0 | 100.00% |
| JustReallyBad vs Asuka | 0–1 | 0.00% |
| JustReallyBad vs Devil Jin | 0–1 | 0.00% |
| JustReallyBad vs Lidia | 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.