| JaYun vs Paul | 34–13 | 72.34% |
| JaYun vs Bryan | 17–14 | 54.84% |
| JaYun vs Dragunov | 21–10 | 67.74% |
| JaYun vs Kazuya | 18–10 | 64.29% |
| JaYun vs Jin | 18–4 | 81.82% |
| JaYun vs Reina | 15–6 | 71.43% |
| JaYun vs Hwoarang | 18–2 | 90.00% |
| JaYun vs Lars | 17–3 | 85.00% |
| JaYun vs Victor | 15–4 | 78.95% |
| JaYun vs Steve | 14–3 | 82.35% |
| JaYun vs Lee | 11–4 | 73.33% |
| JaYun vs King | 11–3 | 78.57% |
| JaYun vs Xiaoyu | 13–1 | 92.86% |
| JaYun vs Law | 11–2 | 84.62% |
| JaYun vs Lili | 8–5 | 61.54% |
| JaYun vs Heihachi | 6–7 | 46.15% |
| JaYun vs Yoshimitsu | 10–2 | 83.33% |
| JaYun vs Asuka | 9–2 | 81.82% |
| JaYun vs Eddy | 5–6 | 45.45% |
| JaYun vs Jun | 6–4 | 60.00% |
| JaYun vs Jack-8 | 3–6 | 33.33% |
| JaYun vs Shaheen | 8–1 | 88.89% |
| JaYun vs Raven | 6–3 | 66.67% |
| JaYun vs Feng | 4–4 | 50.00% |
| JaYun vs Devil Jin | 2–5 | 28.57% |
| JaYun vs Leo | 3–4 | 42.86% |
| JaYun vs Azucena | 7–0 | 100.00% |
| JaYun vs Zafina | 5–1 | 83.33% |
| JaYun vs Clive | 3–3 | 50.00% |
| JaYun vs Alisa | 1–3 | 25.00% |
| JaYun vs Claudio | 3–1 | 75.00% |
| JaYun vs Leroy | 3–1 | 75.00% |
| JaYun vs Kuma | 2–1 | 66.67% |
| JaYun vs Lidia | 3–0 | 100.00% |
| JaYun vs Nina | 1–1 | 50.00% |
| JaYun vs Panda | 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.