| Josiah vs Jin | 8–10 | 44.44% |
| Josiah vs Steve | 8–10 | 44.44% |
| Josiah vs King | 4–13 | 23.53% |
| Josiah vs Kazuya | 8–9 | 47.06% |
| Josiah vs Law | 4–7 | 36.36% |
| Josiah vs Reina | 4–6 | 40.00% |
| Josiah vs Lidia | 7–3 | 70.00% |
| Josiah vs Azucena | 5–4 | 55.56% |
| Josiah vs Bryan | 2–6 | 25.00% |
| Josiah vs Lars | 5–3 | 62.50% |
| Josiah vs Hwoarang | 2–5 | 28.57% |
| Josiah vs Lili | 4–3 | 57.14% |
| Josiah vs Dragunov | 0–7 | 0.00% |
| Josiah vs Jun | 2–5 | 28.57% |
| Josiah vs Xiaoyu | 2–4 | 33.33% |
| Josiah vs Asuka | 0–5 | 0.00% |
| Josiah vs Feng | 4–1 | 80.00% |
| Josiah vs Nina | 3–2 | 60.00% |
| Josiah vs Lee | 3–2 | 60.00% |
| Josiah vs Victor | 3–2 | 60.00% |
| Josiah vs Leo | 0–4 | 0.00% |
| Josiah vs Leroy | 1–3 | 25.00% |
| Josiah vs Clive | 2–2 | 50.00% |
| Josiah vs Zafina | 1–2 | 33.33% |
| Josiah vs Eddy | 1–2 | 33.33% |
| Josiah vs Anna | 2–1 | 66.67% |
| Josiah vs Alisa | 0–2 | 0.00% |
| Josiah vs Raven | 2–0 | 100.00% |
| Josiah vs Paul | 0–1 | 0.00% |
| Josiah vs Yoshimitsu | 1–0 | 100.00% |
| Josiah vs Jack-8 | 0–1 | 0.00% |
| Josiah vs Devil Jin | 1–0 | 100.00% |
| Josiah vs Heihachi | 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.