| Joy-boy vs Eddy | 5–7 | 41.67% |
| Joy-boy vs Dragunov | 7–4 | 63.64% |
| Joy-boy vs Law | 8–1 | 88.89% |
| Joy-boy vs Kazuya | 4–5 | 44.44% |
| Joy-boy vs Asuka | 5–2 | 71.43% |
| Joy-boy vs King | 1–5 | 16.67% |
| Joy-boy vs Lee | 3–3 | 50.00% |
| Joy-boy vs Bryan | 3–2 | 60.00% |
| Joy-boy vs Lili | 2–3 | 40.00% |
| Joy-boy vs Reina | 3–2 | 60.00% |
| Joy-boy vs Jin | 3–1 | 75.00% |
| Joy-boy vs Lars | 2–2 | 50.00% |
| Joy-boy vs Azucena | 2–2 | 50.00% |
| Joy-boy vs Jack-8 | 2–1 | 66.67% |
| Joy-boy vs Leo | 2–1 | 66.67% |
| Joy-boy vs Shaheen | 1–2 | 33.33% |
| Joy-boy vs Xiaoyu | 0–2 | 0.00% |
| Joy-boy vs Devil Jin | 0–2 | 0.00% |
| Joy-boy vs Feng | 2–0 | 100.00% |
| Joy-boy vs Alisa | 2–0 | 100.00% |
| Joy-boy vs Hwoarang | 0–0–1 | N/A |
| Joy-boy vs Jun | 1–0 | 100.00% |
| Joy-boy vs Victor | 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.