| Jostain vs Kazuya | 52–28 | 65.00% |
| Jostain vs Bryan | 48–22 | 68.57% |
| Jostain vs King | 24–33 | 42.11% |
| Jostain vs Heihachi | 38–14 | 73.08% |
| Jostain vs Jin | 36–14 | 72.00% |
| Jostain vs Reina | 25–11 | 69.44% |
| Jostain vs Dragunov | 20–15 | 57.14% |
| Jostain vs Steve | 14–19 | 42.42% |
| Jostain vs Leo | 21–11 | 65.62% |
| Jostain vs Yoshimitsu | 21–9 | 70.00% |
| Jostain vs Hwoarang | 17–13 | 56.67% |
| Jostain vs Victor | 19–7 | 73.08% |
| Jostain vs Fahkumram | 14–9 | 60.87% |
| Jostain vs Lee | 12–10 | 54.55% |
| Jostain vs Law | 13–8 | 61.90% |
| Jostain vs Azucena | 8–12 | 40.00% |
| Jostain vs Armor King | 10–10 | 50.00% |
| Jostain vs Lili | 14–4 | 77.78% |
| Jostain vs Jun | 12–6 | 66.67% |
| Jostain vs Xiaoyu | 7–10 | 41.18% |
| Jostain vs Jack-8 | 8–9 | 47.06% |
| Jostain vs Paul | 8–8 | 50.00% |
| Jostain vs Lars | 2–13 | 13.33% |
| Jostain vs Clive | 11–4 | 73.33% |
| Jostain vs Miary Zo | 11–4 | 73.33% |
| Jostain vs Devil Jin | 9–5 | 64.29% |
| Jostain vs Nina | 4–10 | 28.57% |
| Jostain vs Asuka | 10–3 | 76.92% |
| Jostain vs Feng | 8–5 | 61.54% |
| Jostain vs Alisa | 3–9 | 25.00% |
| Jostain vs Kuma | 5–6 | 45.45% |
| Jostain vs Eddy | 2–9 | 18.18% |
| Jostain vs Shaheen | 6–4 | 60.00% |
| Jostain vs Raven | 7–3 | 70.00% |
| Jostain vs Claudio | 5–4 | 55.56% |
| Jostain vs Anna | 3–5 | 37.50% |
| Jostain vs Lidia | 1–5 | 16.67% |
| Jostain vs Zafina | 0–2 | 0.00% |
| Jostain vs Leroy | 0–2 | 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.