| JJung vs Reina | 19–15 | 55.88% |
| JJung vs Dragunov | 12–16 | 42.86% |
| JJung vs Bryan | 10–16 | 38.46% |
| JJung vs Kazuya | 11–15 | 42.31% |
| JJung vs Lili | 8–18 | 30.77% |
| JJung vs Heihachi | 8–18 | 30.77% |
| JJung vs Hwoarang | 8–12 | 40.00% |
| JJung vs Victor | 9–11 | 45.00% |
| JJung vs King | 7–11 | 38.89% |
| JJung vs Devil Jin | 6–12 | 33.33% |
| JJung vs Azucena | 9–9 | 50.00% |
| JJung vs Steve | 10–7 | 58.82% |
| JJung vs Alisa | 10–7 | 58.82% |
| JJung vs Jun | 5–11 | 31.25% |
| JJung vs Paul | 8–7 | 53.33% |
| JJung vs Jin | 8–7 | 53.33% |
| JJung vs Nina | 7–8 | 46.67% |
| JJung vs Kuma | 5–10 | 33.33% |
| JJung vs Yoshimitsu | 6–8 | 42.86% |
| JJung vs Asuka | 4–10 | 28.57% |
| JJung vs Eddy | 4–10 | 28.57% |
| JJung vs Law | 5–8 | 38.46% |
| JJung vs Xiaoyu | 4–7 | 36.36% |
| JJung vs Feng | 4–5 | 44.44% |
| JJung vs Lee | 4–5 | 44.44% |
| JJung vs Leo | 5–3 | 62.50% |
| JJung vs Lars | 5–2 | 71.43% |
| JJung vs Zafina | 1–4 | 20.00% |
| JJung vs Jack-8 | 0–4 | 0.00% |
| JJung vs Shaheen | 4–0 | 100.00% |
| JJung vs Leroy | 3–1 | 75.00% |
| JJung vs Lidia | 2–2 | 50.00% |
| JJung vs Panda | 1–1 | 50.00% |
| JJung vs Raven | 0–2 | 0.00% |
| JJung vs Clive | 0–2 | 0.00% |
| JJung vs Claudio | 1–0 | 100.00% |
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.