| Joestar vs Bryan | 8–11 | 42.11% |
| Joestar vs Steve | 8–7 | 53.33% |
| Joestar vs Law | 2–10 | 16.67% |
| Joestar vs Kazuya | 2–8 | 20.00% |
| Joestar vs Lili | 5–5 | 50.00% |
| Joestar vs Dragunov | 3–7 | 30.00% |
| Joestar vs Victor | 2–6 | 25.00% |
| Joestar vs Paul | 0–6 | 0.00% |
| Joestar vs Hwoarang | 5–1 | 83.33% |
| Joestar vs Jin | 3–3 | 50.00% |
| Joestar vs Leo | 2–4 | 33.33% |
| Joestar vs Lars | 2–4 | 33.33% |
| Joestar vs Lee | 1–5 | 16.67% |
| Joestar vs Yoshimitsu | 4–1 | 80.00% |
| Joestar vs Jack-8 | 2–3 | 40.00% |
| Joestar vs Devil Jin | 4–1 | 80.00% |
| Joestar vs Jun | 2–3 | 40.00% |
| Joestar vs Lidia | 1–4 | 20.00% |
| Joestar vs Heihachi | 1–4 | 20.00% |
| Joestar vs King | 2–2 | 50.00% |
| Joestar vs Feng | 1–3 | 25.00% |
| Joestar vs Reina | 4–0 | 100.00% |
| Joestar vs Asuka | 1–2 | 33.33% |
| Joestar vs Kuma | 0–3 | 0.00% |
| Joestar vs Azucena | 2–1 | 66.67% |
| Joestar vs Clive | 2–1 | 66.67% |
| Joestar vs Xiaoyu | 0–2 | 0.00% |
| Joestar vs Panda | 2–0 | 100.00% |
| Joestar vs Leroy | 1–1 | 50.00% |
| Joestar vs Raven | 0–2 | 0.00% |
| Joestar vs Anna | 0–2 | 0.00% |
| Joestar vs Alisa | 0–1 | 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.