| Joyboy21 vs Heihachi | 81–70 | 53.64% |
| Joyboy21 vs King | 68–80 | 45.95% |
| Joyboy21 vs Kazuya | 74–67 | 52.48% |
| Joyboy21 vs Dragunov | 64–77 | 45.39% |
| Joyboy21 vs Jin | 61–62 | 49.59% |
| Joyboy21 vs Bryan | 51–51 | 50.00% |
| Joyboy21 vs Yoshimitsu | 35–54 | 39.33% |
| Joyboy21 vs Steve | 41–47 | 46.59% |
| Joyboy21 vs Paul | 38–48 | 44.19% |
| Joyboy21 vs Hwoarang | 35–43 | 44.87% |
| Joyboy21 vs Reina | 34–38 | 47.22% |
| Joyboy21 vs Law | 29–36 | 44.62% |
| Joyboy21 vs Devil Jin | 27–28 | 49.09% |
| Joyboy21 vs Nina | 18–30 | 37.50% |
| Joyboy21 vs Victor | 21–23 | 47.73% |
| Joyboy21 vs Lili | 17–25 | 40.48% |
| Joyboy21 vs Eddy | 15–21 | 41.67% |
| Joyboy21 vs Lee | 14–20 | 41.18% |
| Joyboy21 vs Jun | 10–19 | 34.48% |
| Joyboy21 vs Asuka | 13–15 | 46.43% |
| Joyboy21 vs Azucena | 10–17 | 37.04% |
| Joyboy21 vs Feng | 14–12 | 53.85% |
| Joyboy21 vs Alisa | 9–17 | 34.62% |
| Joyboy21 vs Lars | 6–19 | 24.00% |
| Joyboy21 vs Lidia | 12–12 | 50.00% |
| Joyboy21 vs Armor King | 13–10 | 56.52% |
| Joyboy21 vs Leo | 9–12 | 42.86% |
| Joyboy21 vs Claudio | 9–12 | 42.86% |
| Joyboy21 vs Clive | 6–11 | 35.29% |
| Joyboy21 vs Shaheen | 9–5 | 64.29% |
| Joyboy21 vs Anna | 8–6 | 57.14% |
| Joyboy21 vs Kuma | 6–7 | 46.15% |
| Joyboy21 vs Fahkumram | 5–8 | 38.46% |
| Joyboy21 vs Jack-8 | 3–8 | 27.27% |
| Joyboy21 vs Xiaoyu | 6–3 | 66.67% |
| Joyboy21 vs Leroy | 3–6 | 33.33% |
| Joyboy21 vs Raven | 4–2 | 66.67% |
| Joyboy21 vs Zafina | 2–3 | 40.00% |
| Joyboy21 vs Panda | 1–2 | 33.33% |
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.