| Josiah vs Jin | 21–52 | 28.77% |
| Josiah vs Hwoarang | 22–36 | 37.93% |
| Josiah vs King | 23–32 | 41.82% |
| Josiah vs Kazuya | 24–31 | 43.64% |
| Josiah vs Reina | 24–29 | 45.28% |
| Josiah vs Eddy | 12–34 | 26.09% |
| Josiah vs Victor | 15–26 | 36.59% |
| Josiah vs Law | 11–29 | 27.50% |
| Josiah vs Lili | 17–22 | 43.59% |
| Josiah vs Yoshimitsu | 17–17 | 50.00% |
| Josiah vs Asuka | 19–14 | 57.58% |
| Josiah vs Dragunov | 11–22 | 33.33% |
| Josiah vs Lars | 18–15 | 54.55% |
| Josiah vs Nina | 14–19 | 42.42% |
| Josiah vs Steve | 10–22 | 31.25% |
| Josiah vs Lidia | 7–25 | 21.88% |
| Josiah vs Bryan | 11–20 | 35.48% |
| Josiah vs Leo | 12–16 | 42.86% |
| Josiah vs Lee | 14–14 | 50.00% |
| Josiah vs Jun | 7–21 | 25.00% |
| Josiah vs Jack-8 | 9–14 | 39.13% |
| Josiah vs Azucena | 7–15 | 31.82% |
| Josiah vs Alisa | 9–11 | 45.00% |
| Josiah vs Devil Jin | 9–10 | 47.37% |
| Josiah vs Paul | 6–11 | 35.29% |
| Josiah vs Xiaoyu | 4–13 | 23.53% |
| Josiah vs Raven | 5–11 | 31.25% |
| Josiah vs Feng | 8–6 | 57.14% |
| Josiah vs Leroy | 4–10 | 28.57% |
| Josiah vs Shaheen | 2–10 | 16.67% |
| Josiah vs Anna | 7–3 | 70.00% |
| Josiah vs Claudio | 5–4 | 55.56% |
| Josiah vs Fahkumram | 1–8 | 11.11% |
| Josiah vs Armor King | 2–7 | 22.22% |
| Josiah vs Kuma | 2–6 | 25.00% |
| Josiah vs Heihachi | 1–3 | 25.00% |
| Josiah vs Zafina | 1–2 | 33.33% |
| Josiah vs Clive | 2–1 | 66.67% |
| Josiah vs Miary Zo | 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.