| Jay Kazuma vs Reina | 11–7 | 61.11% |
| Jay Kazuma vs Steve | 5–12 | 29.41% |
| Jay Kazuma vs Kazuya | 6–8 | 42.86% |
| Jay Kazuma vs Azucena | 8–6 | 57.14% |
| Jay Kazuma vs Dragunov | 5–7 | 41.67% |
| Jay Kazuma vs Jin | 7–3 | 70.00% |
| Jay Kazuma vs Miary Zo | 2–8 | 20.00% |
| Jay Kazuma vs Law | 4–5 | 44.44% |
| Jay Kazuma vs King | 2–7 | 22.22% |
| Jay Kazuma vs Clive | 5–3 | 62.50% |
| Jay Kazuma vs Hwoarang | 3–4 | 42.86% |
| Jay Kazuma vs Bryan | 3–4 | 42.86% |
| Jay Kazuma vs Paul | 2–4 | 33.33% |
| Jay Kazuma vs Jun | 2–4 | 33.33% |
| Jay Kazuma vs Devil Jin | 3–2 | 60.00% |
| Jay Kazuma vs Zafina | 4–1 | 80.00% |
| Jay Kazuma vs Lars | 0–4 | 0.00% |
| Jay Kazuma vs Claudio | 0–4 | 0.00% |
| Jay Kazuma vs Heihachi | 4–0 | 100.00% |
| Jay Kazuma vs Xiaoyu | 2–1 | 66.67% |
| Jay Kazuma vs Lili | 0–3 | 0.00% |
| Jay Kazuma vs Lee | 2–1 | 66.67% |
| Jay Kazuma vs Kuma | 0–3 | 0.00% |
| Jay Kazuma vs Armor King | 1–2 | 33.33% |
| Jay Kazuma vs Yoshimitsu | 2–0 | 100.00% |
| Jay Kazuma vs Asuka | 2–0 | 100.00% |
| Jay Kazuma vs Leroy | 0–2 | 0.00% |
| Jay Kazuma vs Eddy | 2–0 | 100.00% |
| Jay Kazuma vs Victor | 1–0 | 100.00% |
| Jay Kazuma vs Anna | 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.