| J1938 vs Jun | 7–7 | 50.00% |
| J1938 vs Dragunov | 8–3 | 72.73% |
| J1938 vs Paul | 6–3 | 66.67% |
| J1938 vs King | 4–4 | 50.00% |
| J1938 vs Reina | 3–4 | 42.86% |
| J1938 vs Alisa | 5–1 | 83.33% |
| J1938 vs Azucena | 6–0 | 100.00% |
| J1938 vs Law | 3–2 | 60.00% |
| J1938 vs Hwoarang | 3–2 | 60.00% |
| J1938 vs Bryan | 1–4 | 20.00% |
| J1938 vs Lili | 0–5 | 0.00% |
| J1938 vs Nina | 2–3 | 40.00% |
| J1938 vs Victor | 4–1 | 80.00% |
| J1938 vs Jin | 4–0 | 100.00% |
| J1938 vs Steve | 4–0 | 100.00% |
| J1938 vs Asuka | 1–3 | 25.00% |
| J1938 vs Raven | 0–4 | 0.00% |
| J1938 vs Eddy | 0–4 | 0.00% |
| J1938 vs Yoshimitsu | 2–1 | 66.67% |
| J1938 vs Xiaoyu | 2–1 | 66.67% |
| J1938 vs Kazuya | 2–1 | 66.67% |
| J1938 vs Feng | 1–2 | 33.33% |
| J1938 vs Shaheen | 1–2 | 33.33% |
| J1938 vs Kuma | 1–2 | 33.33% |
| J1938 vs Anna | 2–1 | 66.67% |
| J1938 vs Devil Jin | 0–2 | 0.00% |
| J1938 vs Claudio | 2–0 | 100.00% |
| J1938 vs Lee | 2–0 | 100.00% |
| J1938 vs Leroy | 2–0 | 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.