| Joan vs King | 15–35 | 30.00% |
| Joan vs Reina | 20–23 | 46.51% |
| Joan vs Jin | 8–32 | 20.00% |
| Joan vs Steve | 13–26 | 33.33% |
| Joan vs Law | 11–23 | 32.35% |
| Joan vs Asuka | 9–21 | 30.00% |
| Joan vs Azucena | 12–18 | 40.00% |
| Joan vs Jun | 7–21 | 25.00% |
| Joan vs Lili | 8–17 | 32.00% |
| Joan vs Victor | 5–17 | 22.73% |
| Joan vs Lars | 6–15 | 28.57% |
| Joan vs Yoshimitsu | 9–11 | 45.00% |
| Joan vs Kazuya | 7–13 | 35.00% |
| Joan vs Bryan | 5–14 | 26.32% |
| Joan vs Heihachi | 7–9 | 43.75% |
| Joan vs Nina | 6–9 | 40.00% |
| Joan vs Dragunov | 6–8 | 42.86% |
| Joan vs Feng | 3–10 | 23.08% |
| Joan vs Lee | 4–9 | 30.77% |
| Joan vs Hwoarang | 3–9 | 25.00% |
| Joan vs Jack-8 | 3–9 | 25.00% |
| Joan vs Shaheen | 3–9 | 25.00% |
| Joan vs Zafina | 2–10 | 16.67% |
| Joan vs Raven | 4–8 | 33.33% |
| Joan vs Eddy | 5–7 | 41.67% |
| Joan vs Lidia | 3–8 | 27.27% |
| Joan vs Leo | 1–9 | 10.00% |
| Joan vs Xiaoyu | 2–7 | 22.22% |
| Joan vs Alisa | 1–8 | 11.11% |
| Joan vs Paul | 4–4 | 50.00% |
| Joan vs Kuma | 2–4 | 33.33% |
| Joan vs Devil Jin | 1–4 | 20.00% |
| Joan vs Leroy | 1–3 | 25.00% |
| Joan vs Claudio | 0–2 | 0.00% |
| Joan vs Panda | 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.