| JustJohnny vs Jin | 14–10 | 58.33% |
| JustJohnny vs Kazuya | 6–8 | 42.86% |
| JustJohnny vs King | 6–7 | 46.15% |
| JustJohnny vs Hwoarang | 8–5 | 61.54% |
| JustJohnny vs Dragunov | 6–7 | 46.15% |
| JustJohnny vs Law | 10–1 | 90.91% |
| JustJohnny vs Alisa | 8–2 | 80.00% |
| JustJohnny vs Victor | 5–4 | 55.56% |
| JustJohnny vs Yoshimitsu | 4–4 | 50.00% |
| JustJohnny vs Lars | 4–4 | 50.00% |
| JustJohnny vs Paul | 3–4 | 42.86% |
| JustJohnny vs Jack-8 | 5–2 | 71.43% |
| JustJohnny vs Asuka | 6–1 | 85.71% |
| JustJohnny vs Lili | 5–2 | 71.43% |
| JustJohnny vs Claudio | 4–3 | 57.14% |
| JustJohnny vs Lee | 4–3 | 57.14% |
| JustJohnny vs Reina | 7–0 | 100.00% |
| JustJohnny vs Bryan | 4–1 | 80.00% |
| JustJohnny vs Feng | 3–2 | 60.00% |
| JustJohnny vs Leroy | 4–1 | 80.00% |
| JustJohnny vs Jun | 3–2 | 60.00% |
| JustJohnny vs Steve | 4–0 | 100.00% |
| JustJohnny vs Eddy | 2–2 | 50.00% |
| JustJohnny vs Heihachi | 4–0 | 100.00% |
| JustJohnny vs Devil Jin | 2–1 | 66.67% |
| JustJohnny vs Azucena | 2–1 | 66.67% |
| JustJohnny vs Raven | 0–3 | 0.00% |
| JustJohnny vs Shaheen | 2–0 | 100.00% |
| JustJohnny vs Nina | 2–0 | 100.00% |
| JustJohnny vs Zafina | 0–2 | 0.00% |
| JustJohnny vs Lidia | 0–2 | 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.