| Joy Boy vs Paul | 47–27 | 63.51% |
| Joy Boy vs Kazuya | 40–31 | 56.34% |
| Joy Boy vs Asuka | 31–18 | 63.27% |
| Joy Boy vs Bryan | 22–25 | 46.81% |
| Joy Boy vs Jun | 25–21 | 54.35% |
| Joy Boy vs Reina | 33–13 | 71.74% |
| Joy Boy vs King | 28–15 | 65.12% |
| Joy Boy vs Steve | 23–18 | 56.10% |
| Joy Boy vs Jin | 23–16 | 58.97% |
| Joy Boy vs Dragunov | 20–15 | 57.14% |
| Joy Boy vs Law | 22–12 | 64.71% |
| Joy Boy vs Azucena | 18–14 | 56.25% |
| Joy Boy vs Victor | 18–13 | 58.06% |
| Joy Boy vs Xiaoyu | 18–11 | 62.07% |
| Joy Boy vs Lili | 17–11 | 60.71% |
| Joy Boy vs Lars | 15–12 | 55.56% |
| Joy Boy vs Nina | 16–11 | 59.26% |
| Joy Boy vs Hwoarang | 12–14 | 46.15% |
| Joy Boy vs Heihachi | 13–11 | 54.17% |
| Joy Boy vs Devil Jin | 15–8 | 65.22% |
| Joy Boy vs Leo | 12–10 | 54.55% |
| Joy Boy vs Yoshimitsu | 14–7 | 66.67% |
| Joy Boy vs Clive | 13–6 | 68.42% |
| Joy Boy vs Anna | 11–8 | 57.89% |
| Joy Boy vs Lee | 9–9 | 50.00% |
| Joy Boy vs Claudio | 5–11 | 31.25% |
| Joy Boy vs Zafina | 8–8 | 50.00% |
| Joy Boy vs Jack-8 | 9–6 | 60.00% |
| Joy Boy vs Leroy | 6–9 | 40.00% |
| Joy Boy vs Feng | 3–11 | 21.43% |
| Joy Boy vs Alisa | 5–9 | 35.71% |
| Joy Boy vs Eddy | 6–8 | 42.86% |
| Joy Boy vs Lidia | 10–4 | 71.43% |
| Joy Boy vs Kuma | 10–2 | 83.33% |
| Joy Boy vs Shaheen | 3–5 | 37.50% |
| Joy Boy vs Raven | 4–3 | 57.14% |
| Joy Boy vs Panda | 2–0 | 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.