| Jayy vs Jin | 15–20 | 42.86% |
| Jayy vs King | 15–18 | 45.45% |
| Jayy vs Eddy | 5–24 | 17.24% |
| Jayy vs Hwoarang | 14–10 | 58.33% |
| Jayy vs Steve | 10–13 | 43.48% |
| Jayy vs Yoshimitsu | 9–8 | 52.94% |
| Jayy vs Bryan | 8–9 | 47.06% |
| Jayy vs Lili | 2–12 | 14.29% |
| Jayy vs Reina | 6–8 | 42.86% |
| Jayy vs Jun | 3–10 | 23.08% |
| Jayy vs Victor | 3–10 | 23.08% |
| Jayy vs Raven | 7–6 | 53.85% |
| Jayy vs Azucena | 8–4 | 66.67% |
| Jayy vs Xiaoyu | 6–5 | 54.55% |
| Jayy vs Kazuya | 5–6 | 45.45% |
| Jayy vs Devil Jin | 0–11 | 0.00% |
| Jayy vs Leo | 5–6 | 45.45% |
| Jayy vs Lars | 3–8 | 27.27% |
| Jayy vs Dragunov | 4–6 | 40.00% |
| Jayy vs Asuka | 1–8 | 11.11% |
| Jayy vs Lee | 5–3 | 62.50% |
| Jayy vs Kuma | 2–6 | 25.00% |
| Jayy vs Jack-8 | 2–4 | 33.33% |
| Jayy vs Feng | 2–4 | 33.33% |
| Jayy vs Paul | 1–4 | 20.00% |
| Jayy vs Law | 3–2 | 60.00% |
| Jayy vs Claudio | 1–4 | 20.00% |
| Jayy vs Nina | 0–5 | 0.00% |
| Jayy vs Leroy | 0–5 | 0.00% |
| Jayy vs Alisa | 0–4 | 0.00% |
| Jayy vs Shaheen | 0–4 | 0.00% |
| Jayy vs Zafina | 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.